Building regulations for two-storey extensions in Staffordshire

What a building regulations application involves

This service suits every two-storey extension, because each one needs building regulations approval wherever you live in the UK. You get technical drawings and a specification coordinated with the structural engineer, a full plans application, site inspections arranged at each stage, and the completion certificate you will need when you sell. We manage the process, and the work is carried out by vetted teams working under S&K.

Staffordshire towns we list: Stoke-on-Trent (ST1), Newcastle-under-Lyme (ST5), Burton upon Trent (DE13), Cannock (ST19), Tamworth (B77) and Stafford (ST16). Every other address in Staffordshire is covered as well.

Fees

Technical drawings and specification are a guide of £1,500–£4,000. The council's building control fee depends on the value of the work; we confirm every fee in writing before the design stage starts.

Rules in England

In England, building regulations approval comes from council building control or a registered building control approver, using the Approved Documents. Full plans are recommended for two-storey work. New editions of Approved Documents L and F take effect generally from 24 March 2027 and are not yet in force, so current projects follow the 2021 standards.

The Party Wall etc. Act 1996 applies, so notices may be needed for work on or near a shared wall or boundary.

Getting the design right

Fire escape from the first floor

In England, first-floor habitable rooms need an escape window, with a clear opening of at least 0.33 m², at least 450 mm wide and high and its bottom no more than 1,100 mm above the floor, or a protected stair. Adding a storey above 4.5 m means a protected stairway or an alternative.

Insulation and U-values

In England, Part L sets limiting U-values for extensions: 0.18 W/m²K for walls, 0.15 for roofs, 0.18 for floors and 1.4 for windows. Glazing is normally limited to 25% of the new floor area plus windows removed, unless SAP or compensating calculations are used.

How we work in Staffordshire

1. Visit and first ideas

   One of our team visits your house in Staffordshire, checks the walls, roof and drains, and sketches out options with you.

2. Drawings, then consent

   We draw the scheme, check it against the rules in England, and take it through the right consent with the council.

3. Fixed price in writing

   With approved drawings and calculations, we give you a fixed build price and a programme you can plan around.

4. Build

   Foundations, walls, floor, roof, windows, then first and second fix. We break through into the house as late as we can.

Towns we cover in Staffordshire

• Stoke-on-Trent
• Newcastle-under-Lyme
• Burton upon Trent
• Cannock
• Tamworth
• Stafford
• Lichfield
• Kidsgrove
• Burntwood
• Longton
• Rugeley
• Leek
• Great Wyrley
• Biddulph
• Stone
• Uttoxeter
• Wombourne
• Alsager
• Codsall
• Cheadle
• Polesworth

Neighbouring areas

• Building regulations for two-storey extensions in the West Midlands
• Building regulations for two-storey extensions in Shropshire
• Building regulations for two-storey extensions in Derbyshire
• Building regulations for two-storey extensions in Cheshire

All extension services in Staffordshire · About building regulations for two-storey extensions