Wandsworth loft conversion plans for £589
Wandsworth’s conservation-area guidance lists dormers and raising the ridge among the works that need permission. We check your street first, then draw to the council’s local requirements.
- £439 drawings + £150 survey (£589 total)
- Conservation-area check
- CIL form and scale bar covered
What do loft drawings cost in Wandsworth?
We charge £589: £439 for the drawings and submission and £150 for the survey, with no VAT to add. Wandsworth’s application fee goes to the council.
In the Wandsworth loft fee
- A survey of the roof, eaves and ridge with the stair below
- Floor and roof plans at a scale Wandsworth accepts, with a scale bar and north point
- Elevations and a section through the new floor
- The CIL form, compulsory for householder applications in Wandsworth
- A short fire safety note, or the exemption statement the council accepts for small schemes
Dormers and ridge changes in Wandsworth conservation areas
Wandsworth’s conservation-area FAQ lists works that need planning permission there, including “raising the ridge of the roof and/or expanding the size of a roof” and “installing a dormer window to the roof” (Wandsworth conservation areas). Even without that list, Class B is closed on article 2(3) land.
Eight conservation areas also carry Article 4 directions, from Dover House Estate and Heaver Estate to Wandsworth Common (Wandsworth Article 4). The council warns some directions cover only part of an area, so the wording for your road decides. For example, a dormer on a Shaftesbury Park Estate cottage needs an application on both counts.
What Wandsworth asks of a loft pack
Floor and roof plans are drawn to an identified scale (1:100, 1:200 or 1:500) with north shown. The local requirements also say developments should include a Fire Safety Strategy, with exemption statements accepted for smaller schemes (Wandsworth requirements). A loft usually falls in that second group.
Wandsworth’s invalid-application list names a missing CIL form, compulsory even where no floor space is created, and a missing scale bar. After an email about a problem you have two months to respond (Wandsworth process).
Timescale and levy
Wandsworth targets 8 weeks for householder cases and decided 597 of 657 inside that time in the year to June 2026.
Its CIL outside Nine Elms and Roehampton is £427.13 per square metre, indexed for 2024 (Wandsworth CIL). A loft inside the roof adds no new footprint, but the form still goes in.
Wandsworth lofts in numbers
- 597 of 657
- Wandsworth Council householder applications decided within 8 weeks in the year to June 2026, out of all it decided (prior approvals not counted). MHCLG live table PS2, planning application statistics by district, July 2025 to June 2026 (GOV.UK)
- 8
- Conservation areas Wandsworth lists as subject to Article 4 directions. Article 4 Directions (Wandsworth Council)
- Dormers
- Wandsworth lists installing a dormer window among the works needing permission in a conservation area. Conservation areas FAQ (Wandsworth Council)
- 1:100, 1:200 or 1:500
- Scales Wandsworth accepts for floor and roof plans. Local planning application requirements (Wandsworth Council)
- Compulsory
- Wandsworth treats the CIL form as compulsory for householder applications. Planning application process (Wandsworth Council)
- 2 months
- Time to supply missing information before an invalid application is withdrawn. Planning application process (Wandsworth Council)
- 40 m³ / 50 m³
- Permitted roof volume increase: 40 m³ for a terraced house, 50 m³ for other houses. GPDO 2015, Schedule 2, Part 1, Class B: additions to the roof (legislation.gov.uk)
- £427.13 per m²
- Wandsworth residential CIL outside Nine Elms and Roehampton, indexed for 2024. Annual CIL rate summary 2024 (Wandsworth Council)
- £96.97 per m²
- The Mayor of London’s CIL in Wandsworth (band 1) for permissions granted in 2026, owed only when a scheme is liable for CIL in the first place. Mayoral CIL: annual rate summary for 2026, Table 1 (Greater London Authority)
Wandsworth loft questions
Does a dormer in a Wandsworth conservation area need planning permission?
Yes. Wandsworth lists installing a dormer window to the roof among the works needing permission there.
Do I need a fire safety strategy for a loft?
Wandsworth accepts an exemption statement for smaller schemes. We prepare whichever suits your case.
Why does Wandsworth want a CIL form for a loft?
It treats the form as compulsory for householder applications, even where no floor space is created.
How long does Wandsworth take?
Its target is 8 weeks and it met that for most cases last year. We cannot promise a date.
Other services people book with this one
Check your Wandsworth roof
Send the address and a photo of the roof. We tell you the route and quote a fixed fee.