A double-storey extension adds two floors of new space to your house in one build, typically a larger kitchen or living room downstairs with an extra bedroom, bathroom or en-suite above, sharing one set of foundations and one roof.
Addresses across NG17 fall within our coverage for a double-storey extension, so if your home is in Sutton-in-Ashfield we can arrange a survey on a day that works for you. We inspect the existing building, discuss materials and layout, and then price the agreed specification in writing. Expect a guide range of £58,000–£115,000 including VAT before that visit.
- Guide price
- £58,000–£115,000 inc VAT
- Time on site
- 14–22 weeks on site
- Postcodes
- NG17
- Planning rules
- England
- Local area
- Nottinghamshire
- Survey
- Free, with a written quote
How much does a double-storey extension cost in Sutton-in-Ashfield?
Here is how the guide price for a double-storey extension breaks down in Sutton-in-Ashfield. We start from national figures and adjust for the East Midlands, which comes out about 4% below the national guide. The resulting range, VAT included, is £58,000–£115,000, and a survey, at no cost to you, firms it up.
| Type of job | What it usually involves | Guide in Sutton-in-Ashfield |
|---|---|---|
| Small (15–20m² total) | A compact rear or side extension adding a small room on each floor. | £38,500–£62,000 |
| Typical (30–40m² total) | A larger kitchen or living room below with a double bedroom or en-suite above. | £58,000–£115,000 |
| Large (50m² plus total) | Wide or deep extensions, often with a new bathroom, steelwork and high-spec glazing. | £96,000–£173,000 |
What moves the price up or down:
- Combined floor area across both storeys
- How the new roof joins the existing roof
- Foundation depth, ground conditions and drains to divert
- Scaffolding duration, access and the level of finishes
What do you get?
- Groundworks, foundations and below-ground drainage
- First-floor joists, stud walls and new openings upstairs
- Roof structure tied into the existing roof, tiled to match
- Electrics, plumbing and heating by qualified trades, with certificates
- Windows, external doors, plastering and internal doors
- Building control inspections and completion certificate
Homes in Nottinghamshire
Nottingham has large areas of Victorian red-brick terraces, with Edwardian villas in Mapperley and Sherwood and big interwar council estates. Mansfield, Ashfield and Worksop have brick terraces and post-war housing built for mining communities, while Newark and Southwell keep Georgian centres. New estates continue to appear around Nottingham and the larger towns.
Terraces commonly suit loft rooms, rear extensions and repointing. Interwar semis take side extensions and garage conversions, and older buildings in Newark or Southwell may need conservation-area window choices.
None of this holds for every street in Sutton-in-Ashfield, which is why we look at your actual house before pricing a double-storey extension rather than assuming from its age alone.
Do you need permission in Sutton-in-Ashfield?
As Sutton-in-Ashfield is in England, read the following with that system of planning and building control in mind. We check what applies to your house with the council before you receive a quote.
In England, a two-storey rear extension can only be permitted development if it is no more than 3 m deep, at least 7 m from the rear boundary and finished to match the house. Most double-storey and all two-storey side extensions need full planning permission.
Building Regulations approval is needed, with structural calculations for beams, foundations and the roof. The Party Wall etc. Act 1996 often applies on semi-detached and terraced houses.
Rules change and every property is different, so we check the planning history and constraints for your address before we quote.
How does the job run?
Survey and measure
It starts with a survey at the property, free of charge. We check condition, access and services, ask how you want the finished result to look, and answer any questions you have about a double-storey extension.
Written quote
The quote arrives in writing, not over the phone. It covers the full scope, the finishes you've chosen, any exclusions and the payment schedule, with a fixed price tied to that specification.
Booking the work
Before anyone starts, we confirm the programme in writing, check whether consents are required and arrange deliveries. If a skip or scaffolding on the road needs a permit, we apply for it.
On site to finish
The work is carried out to the agreed specification, with floors and furniture protected and the site kept tidy. At the end we clean up, walk through the finished job with you and hand over any certificates.
Why homeowners choose us
Double-storey extensions in Sutton-in-Ashfield: questions
Do I need planning permission for a two-storey extension?
Most two-storey extensions need planning permission, but it depends on the size, height and position, your home's location, whether it is listed or in a conservation area, and which UK nation you are in. In England, a two-storey rear extension can sometimes be built under permitted development if it is no deeper than 3m and at least 7m from the rear boundary. We check what applies before quoting.
Do I need planning permission in Sutton-in-Ashfield?
It depends on the work, the size of the project, your property type and whether the building is listed or in a conservation area. Sutton-in-Ashfield is in England, so England's rules apply. Many smaller jobs need no planning application, but some still need building control approval. We check what applies to your address before quoting.
How much will a double-storey extension cost in Sutton-in-Ashfield?
As a guide, expect to pay £58,000–£115,000 including VAT for a double-storey extension in Sutton-in-Ashfield. That range is adjusted for the East Midlands, which runs about 4% below the national guide. Where your project lands depends on size, materials, access and the condition of what is already there. We confirm a fixed price in writing after a free survey of your home.
Is a double-storey extension better value than single-storey?
A double-storey extension usually gives better value per square metre than a single-storey one, because the same foundations and roof serve twice the floor area. The overall cost is higher, and planning can be harder because of the effect on neighbours. If you might want an extra bedroom later, building both floors now avoids a second round of disruption and scaffolding.
How is the new roof joined to the existing house?
The new roof is usually tied into the existing roof so the two read as one. On a rear extension this often means a lower ridge or a hipped end, with valleys where the slopes meet. We strip back some existing tiles, fix new rafters and battens, and lay matching tiles or slates. Lead or proprietary flashings seal the junctions so water runs off properly.
Near Sutton-in-Ashfield
If your address falls within NG17, we cover it. The same goes for neighbouring Kirkby-in-Ashfield, Mansfield and Mansfield Woodhouse, which we include alongside Sutton-in-Ashfield when arranging surveys and quotes.

