How Long Does an Extension Take to Build?
Building an extension is an exciting way to enhance your home, adding valuable space and increasing its overall worth. However, one of the most common questions we receive at RG Developments is, “How long will it take to complete my extension?”
While every project is unique, there are several factors that influence the timeline of building an extension. In this blog, we’ll explore the stages involved and provide a realistic expectation for how long the process might take.
Planning and Design Stage (4-8 Weeks)
Before any construction can begin, the planning and design phase needs to be completed. This is where you’ll work with your builder and possibly an architect to finalise the design of your extension, ensuring it meets your needs while adhering to local regulations. During this stage, you’ll need to secure planning permission (if required) and ensure that your plans comply with building regulations.
Some smaller extensions may fall under permitted development rights, meaning planning permission isn’t necessary, which can shorten this stage. However, larger or more complex extensions often require planning approval, which can take several weeks to process.
At RG Developments, we handle this stage efficiently, working closely with local authorities in the Wirral to streamline the process and ensure all regulations are met.
Groundwork and Foundations (1-2 Weeks)
Once planning is approved, the first stage of actual building involves preparing the site. This includes clearing the area, setting up any necessary scaffolding, and laying the foundations. Depending on the complexity of the ground and whether any unexpected issues arise (like underground pipes or challenging soil conditions), this phase can take between one to two weeks.
Structural Work (4-6 Weeks)
After the foundations are laid, the main structural work begins. This includes building the walls, installing the roof, and ensuring that the extension is watertight. This stage generally takes the most time, as it involves a significant amount of work and coordination between different tradespeople, including builders, roofers, and bricklayers.
At RG Developments, we work with experienced and reliable professionals, ensuring the structural work is done to the highest standard and within the agreed timeline.
Installing Windows, Doors, and Roofing (1-2 Weeks)
Once the structure is up, the next step is to install the windows, doors, and complete the roofing. This stage is critical to make the extension fully weatherproof, protecting the interior from the elements. The time required for this can vary depending on the complexity of the design and the type of materials used, but it typically takes around one to two weeks.
Internal Work (4-6 Weeks)
The internal work includes plumbing, electrical installations, insulation, and plastering. This is where your extension starts to take shape inside, but it also requires careful coordination between various trades. Internal work can take around four to six weeks, depending on the complexity of the design and whether any bespoke elements are involved (such as custom kitchen installations or underfloor heating).
At RG Developments, we work with trusted local tradespeople in the Wirral area to ensure this phase runs smoothly and efficiently, minimising delays and ensuring top-quality results.
Final Touches and Finishing (1-3 Weeks)
Once the main internal work is complete, the final stage involves adding the finishing touches. This includes painting, decorating, flooring, and fitting any remaining fixtures such as skirting boards or internal doors. Depending on your preferences and the size of the extension, this can take anywhere from one to three weeks.
At this point, your extension is almost ready to be lived in, and we make sure every detail is perfect before handing the project over to you.
Total Timeline
In general, a straightforward single-storey extension can take around 3-4 months to complete from start to finish. More complex projects, such as double-storey extensions or those involving significant internal restructuring, could take 5-6 months or more.
It’s also important to remember that unexpected delays can occur due to weather conditions, supply issues, or unforeseen complications, such as finding structural problems in the existing building. However, choosing an experienced builder like RG Developments ensures that delays are minimised, and the project stays on track.
Conclusion
While the exact timeline for building an extension can vary depending on the size and complexity of the project, having a clear plan and working with an experienced, reliable builder can help keep things moving smoothly. At RG Developments, we pride ourselves on delivering high-quality extensions within agreed timescales, ensuring minimal disruption to your daily life.
If you’re considering an extension and want to discuss your project in more detail, get in touch with us today in 0151 440 2714. We’ll guide you through the process, provide a realistic timeline, and ensure your extension is completed on time and to the highest standard!
