Home extensions in Colchester, Essex and Suffolk
We design and build home extensions across Colchester and the surrounding villages, covering single-storey, double-storey, side-return and wrap-around layouts. We handle the full project from foundations and structural work through to plastering, finishes and final fit-out, with one team accountable from start to handover.
Four kinds of extensions, one team.
Single storey extensions
Single storey rear or side extensions are the most common way to add a kitchen-diner, family room or utility space to a house. They often fall under permitted development, which can shorten the planning route considerably.
6 to 10 weeks typicalFrom £1,800/m²See single storey extensionsDouble storey extensions
A double storey extension adds living space downstairs and a bedroom or bathroom above, usually at a lower cost per square metre than two single-storey builds. They almost always need full planning permission and a structural design that ties cleanly into the existing roof.
12 to 18 weeks typicalFrom £1,800/m²See double storey extensionsSide return extensions
Side return extensions infill the narrow alley alongside a Victorian or Edwardian terrace, opening up a dark galley kitchen into a wide family space. The structural work is more involved than it looks because the original side wall usually has to come down and be replaced with a steel frame.
8 to 12 weeks typicalFrom £1,800/m²See side return extensionsWrap-around extensions
A wrap-around combines a rear and a side return into a single L-shaped extension, giving the largest possible footprint at ground level. They almost always need full planning permission and the longest programme of the four extension types.
14 to 20 weeks typicalFrom £1,800/m²See wrap-around extensions
Every job, the same standards.
- Site survey, drawings and structural calculations coordinated for you
- Planning submission or permitted development confirmation where applicable
- Foundations, drainage, brickwork and roof structure
- Steel beams installed by a structural engineer-signed scheme
- First and second-fix electrics and plumbing by qualified trades
- Plastering, decoration, flooring and joinery to agreed finish
- Building control sign-off and handover pack on completion
A look at what we've fitted.
Finished single-storey rear extension in red brick to match the original property.
Four steps. No surprises.
Free site visit
We come out and listen. No pressure, no commitment. We measure up properly and work out what is actually possible within your budget.
Detailed written quote
Itemised, fixed price within seven working days. Every line item explained. No hidden extras and no day-rate creep.
The build
A named site lead on every job. Daily clean-down at the end of the working day. Weekly progress photos so you know where things stand.
Sign-off and guarantee
All snags cleared before we leave. Written workmanship guarantee on every job. Handover pack with warranties and a contact for anything later.
27m² extension from £48,600 (basic structure)
Final price depends on size, finish, groundworks and structural complexity. Free site visit and written fixed-price quote.
Book a free site visitCommon questions.
Do you handle the planning application as part of the project?
Yes. We work with an architect or technician to produce drawings, then submit the application to the local authority on your behalf. Where the work falls under permitted development we prepare a lawful development certificate application instead, which gives you a written record from the council that the build is allowed.
How much will my extension cost?
From £1,800 per m² as an indicative starting figure, depending on specification and design. As a worked example, a 27m² extension starts from £48,600 for the basic structure. Final price depends on size, finish, groundworks and structural complexity, and is agreed in writing after the free site visit.
How long after I accept the quote can you start?
It depends on the time of year and where the job sits in our schedule. Typical lead time is several weeks rather than months, and we give you a realistic start window in writing before you sign anything. We will not promise a date we cannot hold.
How is your quote different from an estimate?
A quote is a fixed price based on a defined scope, drawings and a written specification. An estimate is a rough figure that can move once the detail is known. Our quotes itemise materials, labour and prime cost sums for items like kitchens or tiles so you can see exactly what is included.
Can I stay in the house while the extension is being built?
In most cases yes, particularly for single-storey rear extensions where the existing house stays sealed until knock-through. We agree the disruptive stages with you in advance, including any days without water or power, so you can plan around them.
What happens if you find something unexpected once work starts?
Older properties sometimes hide poor foundations, old drains or rotten timbers. If we find something that changes the scope we stop, document it with photos, and give you a written variation with a price before any extra work goes ahead. Nothing is added to the bill without your sign-off.
Often paired with this work.
All our services.
Bathrooms
Family bathrooms, en-suites and wet rooms
Refurbishments
Whole-house and room-by-room scopes
New builds
Groundworks through to handover
Underfloor heating
Wet and electric systems, design and install
General building
Brickwork, drains, fences and small works
Driveways and patios
Block, resin, tarmac, stone and porcelain
Working across Essex and Suffolk.
A written quote in 24 hours.
Four quick questions, less than a minute. We come round to measure up, then send you a fully itemised quote within one working day.
- No call centres. You speak to the team running the build.
- Free site visit, no pressure to commit afterwards.
- Line-by-line breakdown so you can compare like for like.
- Fixed price, fixed timeline, no surprises mid-build.
Tell us about your project.
Four short questions, less than a minute. We come back with a free site visit slot and an itemised written quote within seven working days.
Get a free quoteOr call 01206 670263