Wrap-around
Edwardian rear extension
Mannamead, PL3Case study →
House Extensions
House Extensions in Plymouth
Single-storey, two-storey and wrap-around extensions designed and built across Plymouth — from initial sketch to plastered, painted handover.
- Fully insured
- 30+ yrs experience
- Plymouth
- Fully Insured
- Building Regs Approved
- 30+ Yrs Combined Experience
- 12-Month Workmanship Warranty
- Same-Day Reply
Overview
A build that fits your home, your street, your life.
Moving in Plymouth is expensive. A well-designed extension lets you stay in the home, street and school catchment you love while adding the kitchen-diner, family room or extra bedrooms you actually need.
We've extended Edwardian terraces in Stoke, 1930s semis in Mannamead and modern detached homes out in Plymstock and Ivybridge. Every extension we build is structurally engineered, building-control signed off and finished to a standard you'd be proud to show off.
From your first call we'll talk honestly about what's realistic on your plot, your budget and your timeline — before you spend a penny on architects' drawings.
Benefits
Why homeowners choose this route.
01
Add real square metres
Open-plan kitchen-diners, utility rooms, downstairs WCs and master suites that change how you actually live in the house.
02
Boost market value
A well-built extension in Plymouth typically returns 8–15% uplift in property value — often more in PL1, PL3 and PL9.
03
Avoid the move
Stamp duty, estate agents, conveyancing, removals — extending almost always works out cheaper than buying bigger.
04
Designed for daylight
Lantern roofs, wide glazed sliders and well-placed roof windows — South West weather looks better through good glass.
05
Energy-efficient build-up
High-spec insulation, airtight detailing and underfloor heating as standard. Lower bills, warmer rooms.
06
One accountable team
Groundworks, brickwork, roofing, electrics, plumbing and finishes — all coordinated by one project manager.
Our process
From first call to final handover.
- 01
Free site visit
We come to you, walk the space, talk through ideas and give honest feedback on feasibility.
- 02
Design & planning
Architectural drawings, structural calcs and planning or permitted development applications.
- 03
Fixed-price build
Itemised quote with a clear programme. No surprise add-ons mid-build.
- 04
Handover & aftercare
Building Control sign-off, warranty paperwork and a 12-month aftercare period.
Why MAG
Plymouth builders you can actually rely on.
A directly employed core team, fixed-price quotes and a project manager you can call any working day. We don't disappear once the deposit clears.
- Local Plymouth team — no subcontracted PMs flown in for a week
- Fixed-price quotes with a clear payment schedule
- Direct line to the project manager every working day
- Insurance-backed workmanship guarantee on all extensions
- Tidy site, dust-protected internal openings, weekly client updates
- References from extensions completed within a 5-mile radius
Recent projects
A look at our work.
Two-storey side
1930s semi extension
Plymstock, PL9Case study →
Single-storey rear
Open-plan kitchen-diner
Plympton, PL7Case study →
FAQs
Common questions.
Got something specific? Send us a message and we'll come back the same working day.
- Do I need planning permission for an extension in Plymouth?
- Many single-storey rear extensions fall under Permitted Development, but two-storey, side and front extensions usually require full planning. We handle the application with Plymouth City Council on your behalf.
- How long does a typical extension take?
- Single-storey rear extensions usually run 10–14 weeks on site. Two-storey and wrap-around extensions are typically 16–22 weeks, depending on size and finishes.
- How much does an extension cost in Plymouth?
- As a guide, single-storey extensions start from around £2,200–£2,800 per m², and two-storey from around £1,900–£2,400 per m² for a mid-spec finish. We give a fixed itemised quote after the site visit.
- Will you protect the rest of the house during the build?
- Yes — we install dust screens, board floors, set up a separate site entry where possible and clean down internal areas at the end of every day.
Related services
Other ways we can help.
Ready to extend?
Get a free, no-obligation quote.
Send us a few details about your house and what you're hoping to add. We'll come back the same working day with next steps and a free site-visit slot.
01752 638877
Mon–Fri 8am–6pm · Sat 9am–1pm