More room, more light, and a house that finally works as one.

Extends the back of the house into the garden, usually to create one open kitchen, dining and living room with a direct connection to outside.

Fills the narrow strip beside a Victorian or Edwardian kitchen. A small footprint, but the change in width and daylight is transformative.

Combines the rear and side return in an L-shape for the largest single-storey gain, typically a kitchen-living room across the full width of the plot.

Adds space on two floors at once: often a larger kitchen below and a bedroom or bathroom above, with a new roof tied into the existing one.

Scope

Know what your extension price includes

We explain your quote in detail, including what is covered and what you still need to choose. Here is a typical starting point. Your own quote will reflect your home and drawings.

Design

Your choice of architect. Support either way.

Choose your architect and how much you want us to coordinate. We build; your architect prepares the drawings. With managed support, you have less to organise and clear decisions to approve. Your proposal sets out the support, professional appointments and fees.

You need an architect

We introduce a recommended architect to develop the drawings and agreed submissions. If you want managed support, we arrange discussions, bring your priorities to the architect and follow up questions. We contribute construction cost and buildability advice as the design develops.

You have your own architect

We are happy to work with your chosen architect, whether drawings are underway or complete. The same managed support is available: we can coordinate discussions and speak on your behalf with your agreement, keeping you informed and bringing decisions back to you. Planning approval is not required before we talk.

A call, then a visit. We look at the house, the garden, access and what you want the space to do, and give an honest early view on route and budget.

Whether the project is worth pursuing and, if you need one, whether to meet an architect we recommend.

A written summary of the conversation with early budget assumptions and suggested next steps.

Your architect develops the drawings and agreed planning submissions. With managed support, we coordinate discussions and follow up questions, adding construction cost and buildability advice. You approve the design and budget.

Layout, glazing, roof form and the level of finish. The bigger cost decisions are made here, not on site.

Approved drawings from your architect and cost feedback from us against each option.

We work through the drawings, your kitchen choices and finishes, then explain the quote and agree when the work will happen.

The final scope, allowances, start date and how you will live during the build.

A detailed quote showing what is covered, an agreed schedule and a contract naming your project lead.

Your project lead looks after the build and keeps you updated each week. If a change is needed, we explain the options, cost and timing so you can agree it in writing before work goes ahead.

Finish selections on the agreed decision schedule, and any changes you choose to make.

A weekly update: work completed, what is next, decisions needed, risks and any cost movement, each with an owner and date.

We walk the finished space with you, record snags and close them out, then hand over documents, certificates and warranties.

Sign-off, and how you want to be contacted for aftercare.

A snagging record, building control completion, product warranties and a named aftercare contact under the 10-year extension workmanship guarantee.

Cost

What moves the price of an extension

Your budget goes further when you know where to spend it. The size of the space is only part of the picture. Here are the choices we will help you think through.

The calculator gives an early construction-cost range. It excludes professional fees, VAT, most finishes and contingency, and assumes straightforward access and ground conditions.

What clients say

In their words

Extension questions

Asked on most first calls

Next step

Send us your brief

Tell us what you would love the extra space to make possible. We will talk through your ideas, your budget and where to begin. Bring drawings if you have them, or simply tell us what is missing at home.