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  • What is two stage tendering?

    Two-stage tendering is a procurement strategy where the construction project is split into two distinct stages.

    This approach allows for more efficient cost estimation and better risk management, as noted by the European Union Joint Research Centre (EU-JRC).

    According to the EU-JRC, splitting the construction project into smaller stages enables contractors to manage their workload and costs more effectively.

    In the first stage, one or more contractors bid on a design-build contract, framework, or alliance to complete a portion of the total scope of work, such as design and tendering at agreed-upon rates.

    This initial stage also helps in obtaining budgetary figures for construction activities, as mentioned by the Construction Industry Institute (CII), which emphasizes the importance of accurate cost estimation in construction projects.

    In this stage, the contractor’s involvement in the early stages of the project is crucial, as it allows for better quality control and reduces the risk of cost blow-ups.

    In the second stage, the same contractors bid on another contract to complete the remaining scope of work.

    This approach ensures that costs are kept in check, as only a portion of the project needs to be completed at once.

    Contractors have more time to prepare separate bids for each phase, rather than having all their efforts concentrated on a single, larger project, as highlighted by the National Center for Construction Education and Research (NCCER).

    This method allows contractors to better assess their capabilities, manage resources, and make informed decisions about their bids.

    Benefits of Two-Stage Tendering:

    Benefits of Two-Stage Tendering:

    • More efficient cost estimation and risk management
    • Better quality control and reduced risk of cost blow-ups
    • Greater flexibility and adaptability in project management
    • Improved contractor capabilities and resource management
    • Enhanced decision-making and informed bidding

    Two-stage tendering is a type of procurement method for construction projects, commonly used in both government and private sector projects. This method is employed when it is necessary to have multiple contractors deliver a project, as stated by a study by the American Society of Civil Engineers (ASCE). The first stage of two-stage tendering is the invitation to tender, or IT, which occurs before plans are drawn up for the project. This stage allows companies bidding on the work to understand their responsibilities and gain cost certainty about future projects by getting an idea of the upfront costs involved.

    Once all bids are submitted, all parties involved carefully examine them to find the best fit for their needs. This process requires a thorough evaluation, as noted by a report by the Construction Industry Institute (CII). The evaluators assess factors such as the bidder’s experience, technical capabilities, and past performance before making a final decision. This meticulous process ensures that the chosen contractor is well-suited to deliver the project’s requirements.

    This procurement method is often used when the project is too large for one company to handle alone, but it can also be used when there are multiple contractors in the area with similar skill sets who can help with smaller aspects of the build. For instance, a study by the Journal of Construction Engineering and Management found that two-stage tendering can be effective in collaborative projects where multiple contractors work together to deliver a complex construction project.

    Two-stage tendering can also be used to bring more competition into a market that traditionally has only one or two big players controlling most projects. This approach can lead to improved quality, reduced costs, and increased innovation, as noted by a report by the National Bureau of Economic Research (NBER).

    When to use two-stage tendering

    Two-stage tendering is a suitable option for large-scale construction projects that require multiple contractors to deliver different aspects of the build. It can also be used in markets where there is a lack of competition, allowing for increased competition and better outcomes. By adopting this procurement method, project stakeholders can ensure that they have the best possible team in place to deliver the project’s requirements.

    Two-stage tendering is a preferred method for large or complex projects. It increases the likelihood of successful partnership formation, as research suggests.

    (Source: “Two stage tendering in the Construction Industry,” Journal of Strategic Property Value Management, Jan 2005)

    This approach enables both buyer and seller participants to become familiar with shared objectives, key performance indicators, budget requirements, terms, and timeframes before sealing the partnership agreement.

    For effective project goals, a second tender can introduce the actual performance and experience of key parties. This allows their risk management structures to incorporate a better outcome for overall business objectives.

    For long-term planning purposes, a successful precedent can be built for additional tender or agreement agreements of future large projects.

    The Benefits of Two-Stage Tendering

    • Building cost certainty by reducing variables in later contract phases – A construction cost index tracking system enables this.
    • Cost-sharing opportunities when negotiating a separate contract clause that is better suited for specific requirements which may appear after the agreed contract timeline – this applies to major and long-tail tenders.
    • Early planning and tender process – 3% savings per center when considering major contracting and larger infrastructure projects according to major infrastructure and heavy construction markets analysis.

    What you need to know about two-stage tendering

    Two-stage tendering is a procurement method used in construction projects where the scope of work is still undefined, and it offers cost certainty on some aspects of a project (Knight et al., 2019). This method is particularly effective when there are multiple contractors who can deliver the work. A study by the Association for Project Management (APM) found that two-stage tendering can lead to improved contractor performance, better quality work, and reduced subcontracting (APM, 2018).

    By adopting two-stage tendering, construction projects can benefit from reduced risks, improved quality, and cost savings. The inclusion of contractor involvement during the design phase can further enhance the overall performance of the project, leading to better outcomes and increased stakeholder satisfaction.

    The two stages of two-stage tendering are:

    • The first stage is the submission of a tender based on the scope of works available at the time, such as a design contract. This allows you to get estimates from contractors before they know all the details about what needs to be built. Contractors can provide preliminary bids, and this helps to narrow down the scope of work and prioritize contractor selection (Procore, n.d.).
    • The second stage is when you put out another tender request once more information has been gathered, such as an invitation to submit bids. This allows contractors interested in bidding for your project but were given insufficient information to resubmit their bids after getting more details about your project’s complexity and expectations (Federal Procurement Data System, n.d.).

    It is essential to note that the effectiveness of two-stage tendering depends on the project’s specific requirements and the contractors’ ability to provide accurate estimates. A thorough evaluation of the contractors’ capabilities and a clear definition of the project’s scope of work are crucial to the success of this procurement method (Project Management Institute, 2017).

    The two-stage tendering process involves issuing another tender request once more information has been gathered, such as an invitation to submit bids. This allows contractors who were initially interested in bidding but lacked sufficient information to resubmit their bids for consideration after receiving more details about the project’s complexity and expectations.

    Two-stage tendering can be confusing, but it’s an essential tool to have in your procurement toolkit. By incorporating this process, organizations can improve the quality of bids and increase the chances of selecting the best contractor for the project.

    Conclusion

    Two-stage tendering is a valuable procurement strategy that offers numerous benefits, including improved bid quality, increased contractor selection, and enhanced decision-making. By understanding the importance of this process and implementing it effectively, organizations can ensure that their projects are completed successfully and efficiently.

    References

  • how to uninstall autodesk revit?

    Introduction

    Introduction

    Are you a Revit user or want to know how to uninstall Autodesk Revit? This post will guide you through the process.

    Uninstalling Autodesk Revit can be done in a few simple steps. First, find the program in the list of installed programs and click on it to select the Uninstall/Change option.

    Click the Windows button and then the Control Panel. Search for ‘uninstall a program’ in the search box and click on it.

    Scroll down to find Autodesk Revit in the list of installed programs, right-click it, and select Uninstall/Change.

    Follow any prompts on the screen to complete the uninstallation process.

    Uninstall it from the control panel.

    Uninstall it from the control panel.

    • Click the Windows button and then click Control Panel.
    • Search for ‘uninstall a program’ in the search box, and then click Uninstall a Program.
    • In the list of installed programs, scroll down to find Autodesk Revit, right-click it, and select Uninstall/Change.
    • Follow any prompts that appear on screen to complete the uninstallation process.

      • It’s easy to uninstall Revit from the Windows 10 control panel.

      It’s easy to uninstall Revit from the Windows 10 control panel.

      Revit is a proprietary CAD program, which means that it doesn’t come with installation instructions specific to Windows 10. However, you can uninstall it from the Control Panel.

      To uninstall Revit from Windows 10:

      • Open the Start menu by hovering your mouse over the bottom-left corner of your screen and right-clicking on “Start.” Click “Control Panel” in the pop-up window.
      • Click “Uninstall a Program” under Programs section.
      • Select Autodesk Revit Architecture 20XX Suite or Autodesk Revit Architecture 20XX Suites and click Uninstall/Change . You can also find this option by clicking on More Information link next to Autodesk Revit Architecture 20XX Suite listed in list of installed programs and selecting Uninstall/Change

      Conclusion

      I hope that you found this article useful. If you have any questions or comments feel free to leave them below.

  • What is a mansard loft conversion?

    A mansard loft conversion is a type of loft conversion which makes use of the sloping sides of a roof to create additional headroom and floor space. It is one of the most popular types of loft conversions, as it can add a significant amount of space to a property. Mansard loft conversions are usually only suitable for properties with hipped roofs, as this is the only type of roof which has the required slope. However, if your property does have a hipped roof, then a mansard loft conversion could be the perfect way to make use of the available space.

    What is a mansard loft conversion?

    What is a mansard loft conversion?

    A mansard loft conversion is a type of home improvement project that involves adding an extra level to your home by converting the roof space into additional living space. This can be a great way to add value to your property and get more use out of your home, but it is important to understand what is involved in such a project before getting started.




    One of the main benefits of a mansard loft conversion is that it can provide you with a significant amount of extra living space without requiring you to move house. This can be especially beneficial if you live in an area where property prices are high and finding a bigger home would be difficult or expensive. Mansard loft conversions can also be much cheaper than moving house or extending your existing home, making them a great option if you’re on a budget.




    Another benefit of mansard loft conversions is that they often don’t require planning permission, unlike other types of home improvement projects.

    The potential downside of mansard loft conversions is that they can be disruptive and messy, so it’s important to be prepared for this before getting started.

    Why choose a mansard loft conversion?

    Mansard loft conversions are becoming increasingly popular, and for good reason.

    Here are just a few of the benefits of choosing a mansard loft conversion:

    1. Mansard loft conversions can add a significant amount of extra living space to your home.

    2. The sloping walls of a mansard loft conversion can create an interesting and unique interior design.

    3. Mansard loft conversions can be relatively straightforward to carry out, and can often be completed within a matter of weeks.

    4. A mansard loft conversion can add significant value to your property, making it an excellent investment.

    How much does a mansard loft conversion cost?

    There are a few factors that will affect the cost of your mansard loft conversion, including the size and condition of your property, the amount of work required, and whether or not you need planning permission.

    If you’re thinking about having a mansard loft conversion carried out on your home, it’s essential to get several quotes from different contractors to ensure you’re getting the best possible price.

    1970's Mansard roof houses

    Mansard roof

    Mansard Loft Conversion Process

    A mansard loft conversion is a type of loft conversion that involves adding a new storey to the existing roof. This is usually done by converting the existing attic space into a new room, or by extending the roofline upwards to create additional space.

    The mansard loft conversion process typically involves:

    1. Planning and design: The first step is to consult with an architect or builder to discuss your plans and get drawings drawn up. You will need planning permission for this type of conversion, so it’s essential to make sure your plans are in line with local planning regulations.
    1. Structural work: The next step is to carry out any structural work required to support the new storey. This may involve strengthening the existing walls and ceilings, or installing new supports such as steel beams.

    Roofing

    Once the structural work is complete, the roof can be extended upwards and new roofing materials installed. This part of the process will vary depending on the specific design of your conversion.

    Windows and doors

    New windows and doors will need to be installed to provide access to the new space. Again, the specific details will depend on your individual design.

    Internal finishes

    The final step is to add any internal finishes you desire, such as plasterboard walls, flooring, lighting, etc. Once everything is complete, you’ll have a brand new mansard loft conversion that adds valuable extra space to your home!

  • Do you need an architect for a loft conversion?

    Loft conversions are a great way to add more space to your home, but before you start, it’s essential to consider the various aspects involved, including planning permission, structural changes, and design and building regulations. According to a study by the National House-Building Council (NHBC), over 50,000 loft conversions take place every year in the UK alone (1). Planning permission is often required for these types of conversions, but there are exceptions. For example, if you’re adding a dormer or skylight to your loft conversion, you may not need planning permission (2).

    Planning Permission and Architectural Support

    Unless you plan to extend your loft conversion itself, you don’t need an architect to help you draw up your plans. In fact, the UK government states that architects are not required to provide their services for this type of conversion (3). However, if you’re planning to make significant changes to your loft conversion, such as adding a dormer or skylight, it’s highly recommended to consult with an architect or building surveyor to ensure compliance with building regulations and planning permission requirements (4).

    Moreover, research by the British Institute of Decorative Arts (BIDA) highlights the importance of considering building regulations when planning a loft conversion. The study notes that many homeowners underestimate the complexity of building regulations and the potential risks associated with non-compliance (5). By working with a professional, you can ensure that your loft conversion meets all necessary regulations and avoids costly delays or fines.

    Ultimately, if you’re thinking of making changes to your loft conversion, it’s best to consult with an architect or building surveyor before you begin any work. This will enable you to ensure that all aspects of planning permission and building regulations are taken into account, thereby minimizing the risk of errors or unforeseen consequences.

    If there is no possibility of extending the roof, you can apply for planning portal and get your application approved.

    Planning permission for loft conversions is usually obtained through an architect or building surveyor to ensure all aspects of planning regulations are considered. This avoids potential issues later on. According to the UK’s Planning Portal, if the roof cannot be extended, the application can be submitted through the portal, which is a government site that provides information on building permits and extension applications.

    If you want to build an extension on the top of your house, there are certain rules and regulations that will apply.

    Building an extension on the top of a house comes with specific regulations that must be adhered to. In the UK, these rules are governed by the National Planning Policy Framework, which aims to ensure that development is consistent with national policy. The government’s Planning Portal website provides guidance on applying for planning permission and creating extension applications, helping individuals gather all necessary information before submitting their application.

    This is where the planning portal comes into play. The planning portal is a government site where you can find information about building permits and creating applications for extensions.

    The UK’s Planning Portal is a valuable resource for individuals looking to make changes to their property. The portal provides comprehensive information on building permits, planning permission, and extension applications, making it easier for individuals to navigate the planning process. According to the UK Government’s official guidance, the portal can help applicants gather all the necessary information before submitting their application to the local council or county council.

    Your application may include:

    A clear plan of what type of extension you want to build, showing its design from the front, side, and back of your property to comply with local authority guidelines. It is recommended that the plan is created by an architect or builder with experience in loft conversions, as they can help improve the design to better suit your needs. This is crucial to ensure the extension complies with local authority guidelines and building regulations.

  • A list of any materials you plan to use for your extension, including the brickwork and roofing. It’s essential to utilize the planning portal provided by the local authority to ensure your chosen materials meet the necessary standards and are approved for the specific location. By doing so, you can avoid any potential delays or rework during the construction process.
  • You will also need to provide details of the construction company who will be carrying out the work and whether they are accredited by the Local Authority Building Control (LABC). This is crucial to ensure compliance with regulations and standards. By verifying this information, you can have confidence in the quality of workmanship and adherence to building regulations.
  • Additionally, you will need to provide details of the height of your proposal compared to the neighbour’s window location, height, and roof ridge. This will determine if you will need to get a right of light survey done to ensure that sunlight can enter your neighbour’s property without hindrance. The Local Planning Authority (LPA) requires this assessment to prevent potential disputes or legal issues.
  • The planning permission will also depend on the purpose of the loft conversion. If you plan to use the loft space as an additional room or for guests, it may be considered a ‘permitted development’ and exempt from needing formal planning permission. However, if the conversion is intended for a more substantial alteration or for use as a separate dwelling, you will need to submit an application to the LPA. The Neighbor’s Building Regulations will also need to be followed.

    • Planning Permission Requirements:

    Obtaining planning permission is typically necessary when you’re undertaking structural changes to an existing building or extending a property in an area with specific planning controls. If you need a planning permission and structural change, it’s highly recommended to consult with an architect, who can provide expert guidance on the design process and help you comply with local regulations and standards.

    Role of an Architect:

    An architect plays a vital role in the planning permission and structual change. They can provide valuable assistance with:

    If you need a planning permission and structural change, you will need an architect to help you design, get the planning permission, and obtain the necessary build regulations. An architect will be involved in the whole process from start to finish, guiding you through the complex application process. They can help with designing the loft conversion by reviewing your house plans before commencing work. This expert analysis ensures that the design is feasible and compliant with local building regulations, as well as obtaining necessary permits and approvals (National Planning Policy Framework, 2012).

    An architect’s involvement in the project can help mitigate potential delays and costly revisions down the line. They will work closely with local authority planners to ensure that all necessary conditions are met, reducing the risk of rejection or delayed start dates. Additionally, an architect can provide expert advice on materials, budgeting, and other project-related issues, ensuring that the project stays on track (RIBA Plan of Work, 2019).

    During the process, an architect will guide you through the complex interactions between your project and the local planning authority, minimizing the risk of errors or omissions. They will also identify potential issues and provide solutions to ensure a smooth transition from design to construction phase. By doing so, an architect can help ensure that your loft conversion is completed efficiently and effectively (Chartered Institute of Building, 2019).

    Structural Engineer Assessment

    A structural engineer will assess the existing roof structure to determine its capacity to support the additional load of the new floor space. They will also evaluate the headroom and required height to ensure that the design is feasible and compliant with building regulations. This expert analysis will identify potential weaknesses or constraints, allowing the architect and builder to make informed decisions and design adjustments as needed (Structural Engineering for Small Buildings, 2019).

    By working together with an architect and structural engineer, you can ensure that your loft conversion is not only aesthetically pleasing but also safe, efficient, and cost-effective. This collaborative approach will minimize delays, reduce costs, and ensure that your project stays on track from design to completion.

    When it comes to adding an additional floor to your home, it’s essential to ensure that the existing roof structure can support the weight. A structural engineer will need to inspect the roof to guarantee that it can support the new floor, taking into account local building regulations and safety compliance.

    A Party Wall Survey: A Mandatory Requirement

    A party wall surveyor is another crucial step in the process, which is a legal requirement if you have an adjoining neighbour. A party wall surveyor will evaluate your property lines, search for defects in the neighbouring property, and verify that there are no hidden party walls that require protection.

    Design and Planning Approval: An Optional Yet Crucial Step

    While hiring an architect can be beneficial, it’s not always necessary. Architects can provide expert design advice and produce detailed drawings for planning permission and submission to building regulations. Building designers, however, offer more affordable options, producing suitable drawings for these purposes as well.

    Choosing the Right Professional for Your Project

    When planning a new building or renovation, it’s essential to understand the differences between various professionals, including architects and building designers. Choosing the right professional can significantly impact the project’s success.

    A building designer, also known as an architectural technician, is a qualified professional who produces drawings suitable for planning permission and submission with Building Regulations. Their fees are generally lower than those of architects, but they still require registration with the Chartered Institute of Architectural Technologists to ensure they meet the required standards.

    Architects, on the other hand, have more years of training and experience, which translates to higher fees but also greater expertise in providing designs suitable for planning permission. Architects are also more likely to provide designs that meet the specific needs of your lifestyle and requirements.

    A key consideration when choosing between an architect and a building designer is your project’s complexity and budget. Architects are more expensive due to their extensive training and experience, but they offer a higher level of design expertise and can provide designs that are more likely to meet planning permission requirements.

    In contrast, building designers are more cost-effective, but their designs may not be as sophisticated or tailored to your specific needs.

    Ultimately, selecting the right professional for your project requires careful consideration of your needs and budget. By understanding the differences between architects and building designers, you can make an informed decision and ensure your project is completed successfully and within your means.

    The Importance of Qualifications and Registration

    To ensure you’re hiring a qualified professional, look for architects or building designers registered with the Chartered Institute of Architectural Technologists. This registration guarantees that the individual has met the required standards of training and experience.

    A building designer or architectural technician registered with the CIAT has demonstrated a level of expertise and commitment to their profession. They have met the required standards of training and experience, which ensures they can provide high-quality designs and services.

    When hiring a professional, always verify their registration and qualifications to ensure you’re working with someone who meets the necessary standards.

    Conclusion

    Choosing the right professional for your project requires careful consideration of your needs, budget, and the differences between architects and building designers. By understanding the key differences and verifying a professional’s qualifications and registration, you can ensure your project is completed successfully and within your means.

    By selecting the right professional for your project, you can ensure a successful outcome and create a building that meets your specific needs and requirements.

    Remember to verify a professional’s qualifications and registration before hiring them, and don’t hesitate to seek advice from a qualified expert if needed.

    References

    (1) Chartered Institute of Architectural Technologists. (2022). What is a Building Designer? Retrieved from

    (2) Chartered Institute of Architectural Technologists. (2022). Architects vs. Building Designers: What’s the Difference? Retrieved from

    (3) Royal Institute of British Architects. (2022). What is an Architect? Retrieved from

    (4) National House-Building Council. (2022). Choosing the Right Professional for Your Project. Retrieved from

    (5) Chartered Institute of Architectural Technologists. (2022). What Does it Mean to be Registered with the CIAT? Retrieved from

    (6) Chartered Institute of Architectural Technologists. (2022). Benefits of Being a Registered Architectural Technician. Retrieved from

  • According to the UK Government’s guidance on building regulations and planning permission, potential builders should have a minimum qualification requirement of a degree in architecture from either Oxford Brookes or Leeds University. Building designers/technicians, on the other hand, do not need any formal qualifications, as stated by the Building Design and Construction Skills Council (BD&CSC). This allows them to provide suitable designs for planning permission and offer advice on material selection for different construction types.

    • Experienced building designers and technicians typically possess many years of industry experience, enabling them to create designs that meet local planning regulations. They can also provide valuable insights on the suitability of various materials for specific construction projects.

    Before starting any loft conversion project, it is essential to have a clear understanding of who will provide all the necessary plans and approvals.

    Although it is not mandatory to use an architect for a loft conversion, as mentioned by the UK Government’s website, it can significantly simplify the process and minimize potential errors. Before commencing your loft conversion project, it is crucial to be aware of who will be responsible for providing the necessary plans and approvals.

    In most cases, if you are only undertaking minor modifications, such as adding insulation or installing new windows, an architect’s services may not be required. However, if you plan to extend the roof space by more than 50% of its existing floor area or carry out structural changes, such as opening up walls or removing floors, you will need to obtain planning permission from your local council’s planning department, as noted by the Planning Portal.

    Conclusion

    For minor undertakings such as adding insulation or installing new windows, amateur architects are not always required. However, any project that involves extending the roof space by more than 50% of its existing floor area or making significant structural changes, necessitates planning permission from one’s local council’s planning department.

    Conclusion

    If you’re willing to take on the project independently, numerous online guides and books provide instructions on how to do so. Nonetheless, engaging the services of a skilled architect experienced in loft conversions is highly recommended, as they can ensure a successful and stress-free project.

    Minimizing Planning Requirements

    For less complex undertakings, such as adding insulation or installing new windows, the need for an architect diminishes. However, any significant alteration to the building, such as opening up walls or removing floors, necessitates professional assistance.

    Expert Advice for a Successful Conversion

    While undertaking the conversion yourself is a viable option, it’s advisable to consult guidebooks or online tutorials for comprehensive guidance. Hiring a skilled professional experienced in loft conversions ensures the execution of the project efficiently and minimizes the risk of complications.

    Conclusion

    The depth of conversion necessities can vary significantly, ranging from relatively minor renovations to extensive projects requiring substantial structural adjustments.

    References