Pricing
What Building Work Costs
Most projects fall into a range. These are the figures we see on real jobs in Essex and London, so you can work out roughly what your project sits at before you speak to anyone.
Free
Site visit and written quote
Itemised
Every cost set out line by line
Staged
Payments tied to work completed
Loft Conversions
Based on a typical 3 bed semi
| Type of Work | Typical Cost | On Site |
|---|---|---|
|
Rooflight (Velux) conversion Simplest route where the roof already has the height |
£18,000 – £42,000 |
6 – 8 weeks |
|
Dormer conversion Added headroom and floor area, most common choice |
£35,000 – £65,000 |
8 – 11 weeks |
|
Hip to gable End of terrace and semis, squares off the roof |
£45,000 – £75,000 |
10 – 13 weeks |
|
Mansard Largest gain in space, usually needs planning |
£60,000 – £95,000 |
12 – 16 weeks |
Extensions
Excluding kitchen and bathroom fit
| Type of Work | Typical Cost | On Site |
|---|---|---|
|
Single storey rear, small Up to roughly 15m² |
£30,000 – £60,000 |
10 – 14 weeks |
|
Single storey rear, large Roughly 25m² to 35m² |
£55,000 – £95,000 |
14 – 18 weeks |
|
Side return Narrow infill, common on Victorian terraces |
£45,000 – £80,000 |
12 – 16 weeks |
|
Wraparound Side return and rear combined |
£75,000 – £130,000 |
16 – 22 weeks |
|
Double storey Footprint added over two floors |
£85,000 – £150,000 |
18 – 26 weeks |
Everything Else
Residential, commercial and surveying
| Type of Work | Typical Cost | On Site |
|---|---|---|
|
Kitchen refurbishment Strip out to final fix, excluding units |
£10,000 – £35,000 |
4 – 7 weeks |
|
Full property refurbishment Rewire, replumb, heating, layout, decoration |
£1,200 – £1,900 per m² |
12 – 24 weeks |
|
New build (residential) Groundworks through to handover |
£2,000 – £2,800 per m² |
9 – 14 months |
|
Office fit-out (Cat B) Partitioning, services, flooring, finishes |
£650 – £1,200 per m² |
6 – 14 weeks |
|
Restaurant fit-out Front and back of house, extraction, services |
£1,200 – £2,200 per m² |
10 – 18 weeks |
|
Drone survey Roof and elevation capture with imagery pack |
£250 – £600 |
Same day |
|
Snagging inspection Room by room, with photographed schedule |
£350 – £750 |
1 – 2 days |
What Moves the Price
Access. A rear garden with no side access means everything goes through the house, which adds labour.
Structure. Removing load bearing walls means steel, calculations and building control.
Services. Moving a kitchen or bathroom means new runs for waste, water and power.
Specification. The difference between standard and high end finishes is often 20 to 30 per cent.
Ground conditions. Trees, drains and poor soil all affect foundation depth.
Planning. Permitted development is quicker and cheaper than a full application.
Want a Figure for Your Project?
Book a site visit and you get a fixed written quotation with a programme, not a range.
Figures are indicative only and based on typical projects in Essex and London. They exclude planning fees, building control fees, structural engineering, party wall awards and VAT unless stated. A formal quotation follows a site visit.