Double-storey extensions · Alfreton

Double-storey extensions in Alfreton

Double-storey extensions for homes in Alfreton and the surrounding parts of Derbyshire, designed around your house and built by our teams under a single written contract.

Covering Alfreton

Alfreton sits 13 miles north of Derby, with Ripley 5 miles to the south and Sutton-in-Ashfield 5 miles to the east.

Homes in the East Midlands

Housing in the East Midlands includes Victorian terraces, inter-war semis and newer estates, with stone-built villages in some areas where conservation controls apply.

What is a double-storey extension?

Two-storey work has to sit comfortably with the house and the neighbours, so most of the design effort goes into the roofline, window positions and how the new first floor connects to the landing. We handle the planning application, the structural design and the building control process, then build, roof and finish both floors.

  • Foundations, steelwork, brick and block walls, roof
  • Windows, insulation, plastering, electrics and plumbing
  • Joining the new first floor to the existing landing

What is the guide price for a double-storey extension in Alfreton?

Indicative costs for double-storey extensions. London and the South East usually sit towards the top of each range.

Double-storey extensionsGuide price incl. VAT
Standard specification£2,400 to £2,900 per m²
Good specification£2,900 to £3,400 per m²
High specification£3,400 to £3,850 per m²

Do you need permission for a double-storey extension in Alfreton?

English projects need planning clearance from the local council, building regulations sign-off from building control, and party wall notices where the work is on or near a shared boundary. We prepare and manage all three.

Two-storey rear extensions can sometimes be permitted development in England (no more than 3 m deep, at least 7 m from the rear boundary, roof pitch to match), but most two-storey and all two-storey side extensions need householder planning permission. Expect around eight weeks for a decision once the application is validated.

What should Alfreton homeowners check first?

  • Neighbours’ light is assessed using the 45-degree guide many councils use.
  • The new roof is tied into the old one, so roof tiles and ridge details need to match.

From first call to completion

  1. Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
  2. We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
  3. Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
  4. Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

Questions about a double-storey extension in Alfreton

How much does a two-storey extension cost?

Typically about £2,400 to £3,850 per square metre of new floor area including VAT. A 40 m² extension across two floors is often around £100,000 to £150,000 depending on specification.

Is a two-storey extension better value than a single-storey one?

Per square metre, usually yes, because the foundations and roof serve two floors of space.

Do you work in Alfreton?

Yes. Alfreton is within our coverage for double-storey extensions, along with nearby Ripley and Sutton-in-Ashfield.

Also covering

Learn more about double-storey extensions, or see every project we cover in Alfreton.

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