Bungalow and upward extensions in Nelson

Covering Nelson

Our coverage around Nelson (BB9) also includes Burnley (3 miles to the south-west) and Accrington.

Homes in the North West

Across the North West, Victorian terraces, inter-war semis and modern estates all feature, and brick or stone matching is chosen to suit each street.

What goes into an upward extension?

The first question is whether the existing walls and foundations can carry the extra load, so we start with a structural survey. Then we design either a full first floor or a raised roof with dormers, handle planning or prior approval, and build the new storey while protecting the floor below.

Structural survey of walls and foundations
Roof removal and temporary weather protection
New first-floor structure, walls and roof

How much does an upward extension cost in Nelson?

Indicative costs for bungalow and upward extensions. London and the South East usually sit towards the top of each range.

Bungalow and upward extensions	Guide price incl. VAT
Chalet conversion with dormers (total)	£45,000 to £85,000
New first floor, standard specification	£2,200 to £2,800 per m²
New first floor, good specification	£2,800 to £3,300 per m²
New first floor, high specification	£3,300 to £3,800 per m²

Planning and building rules in Nelson

Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 applies.

In England, Class AA permitted development allows an extra storey on many detached and semi-detached houses built between July 1948 and October 2018, subject to a prior approval application covering design, neighbours’ amenity and other matters.

What should I think about before starting?

Some bungalow foundations need strengthening before a storey can be added.
The staircase takes space from the ground floor plan.

What happens after I enquire?

Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

Your questions answered

Is an upward extension permitted development?

In England, Class AA allows it on many post-1948 houses through a prior approval application. Elsewhere planning permission is needed.

Do we need to move out?

Often for part of the job, while the roof is off and the new floor is formed. We plan this with you.

Do you work in Nelson?

Yes. Nelson is within our coverage for bungalow and upward extensions, along with nearby Burnley and Accrington.

Also covering

Learn more about bungalow and upward extensions, or see every project we cover in Nelson.