How Long Does It Take to Build an Extension?
As many homeowners know, building an extension can be a large, involved task. From the design of the extension to arranging building regulations, there are a number of stages involved in the building process. It is important to have an understanding of what each stage entails and how long it will take to complete each stage. This article will provide a comprehensive overview of what the stages of an extension are, how long they take, and any other relevant considerations.
The exact timeline for an extension varies from project to project, but a good rule of thumb is that a typical extension should take around 18-20 weeks to build. A longer extension may take up to 6 months or more, while a smaller extension can take as little as 8-10 weeks. This timeline can be affected by various factors, including the weather, the complexity of the project, and the availability of materials and tradespeople. It is important to plan ahead and have clear deadlines with builders so that everything runs smoothly. Additionally, depending on the size and scope of the project, some homeowners opt to move out while the construction is taking place. This can help reduce the risk of disruption and give builders the flexibility to work uninterrupted.
What is the Design Stage of Building an Extension?
The design stage is a key element of the building process and typically takes 6-8 weeks to complete. During this phase, a qualified architect will determine the feasibility of the project, create plans and drawings, and submit them to the local planning department for approval. The start and end dates for this stage may vary, as the planning process can sometimes take longer than expected and can involve additional rounds of changes, depending on the specifications of the extension.
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The planning process usually takes between four and eight weeks, depending on the complexity of the project and the availability of local resources. Before construction can begin, all plans must be approved and signed off by the local building regulations officer. During this stage, the time-frame can be affected by any issues that arise, such as disagreements or disputes with local authorities.
Arranging Building Regulations
In order to proceed with building an extension, all planning permissions and applications for building regulations must be obtained. Building regulation applications usually last between 2-4 weeks, but can take longer if there are deliberated changes required or if the plans need to be revised. This part of the process requires a registered builder who holds public liability insurance, is certified to carry out gas, electrical and plumbing work, and is familiar with the local regulations.
What is the Time-frame for the Extension Construction?
Once the planning and building regulations processes are completed, the construction of the extension can officially begin. The timeframe for construction largely depends on the size and scope of the project. Generally, a small extension (10m2 - 20m2) will take 8-10 weeks, mid-sized extensions (20m2 - 40m2) take around 12-14 weeks, and a larger extension (40m2 - 60m2) will take 16-18 weeks. On average, it takes shorter to complete the frame and roof than the internal and external finishing.
To conclude, building an extension typically takes between 18-20 weeks, depending on the size and scope of the project. During this period, the design stage typically takes 6-8 weeks, the planning process 4-8 weeks, and the building regulations 2-4 weeks. For construction, small extensions take 8-10 weeks to complete, mid-sized extensions take 12-14 weeks, and larger extensions take 16-18 weeks. Therefore, it is important for homeowners to be aware of these timelines and plan accordingly.
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