Lawful development certificate drawings for Wandsworth, £539
Wandsworth’s own conservation area guidance tells owners in doubt over replacement windows and doors to seek a certificate. If your house sits in one of its 46 conservation areas, we draw the pack that settles it.
- £389 drawings + £150 survey (£539 total)
- 46 conservation areas
- Article 4 estates checked
What does a lawful development certificate pack cost in Wandsworth?
We charge £539: £389 for the drawings, forms and submission and £150 for the survey, with no VAT to add. Wandsworth Council’s certificate fee is paid to the council.
What the Wandsworth price covers
- A survey that records the existing windows, doors and openings to scale
- Existing and proposed elevations that show glazing pattern and style, which is what Wandsworth tests
- A check of your road against the eight Article 4 estates
- The application forms and submission to Wandsworth
- Replies to the case officer
When Wandsworth says to seek a certificate
Wandsworth’s conservation area FAQ says changing the windows and doors of an unlisted house is permitted development, as long as the new materials look similar to the original and the glazing pattern and style match. Where there is doubt, it recommends a Lawful Development Certificate as proof that your household building work is lawful (Wandsworth conservation areas FAQ).
For example, swapping timber sashes for double-glazed timber ones with the same bars and horns is the sort of change a certificate can confirm, while plastic-looking frames in place of crittal windows are, in the council’s words, not likely to be acceptable. Flats and houses converted to flats have no such rights at all.
Article 4 estates in Wandsworth
The FAQ also says a household in a conservation area with an Article 4 direction must always seek planning permission. Wandsworth lists eight of them: Dover House Estate, Heaver Estate, Latchmere Estate, Putney Lower Common, Roehampton Village, Shaftesbury Park Estate, Totterdown Fields Estate and Wandsworth Common (Wandsworth Article 4).
A proposed certificate cannot confirm what an Article 4 direction has taken away. We check your address first, so you do not pay for a certificate that would be refused.
Validation and timing
Wandsworth publishes a local validation checklist, dated July 2026, that every application is read against (Wandsworth checklist). A certificate pack that matches its drawing and scale requirements is less likely to be returned.
Wandsworth decided 597 of 657 householder applications inside 8 weeks in the year to June 2026; certificates run on their own clock and we cannot promise a date.
Wandsworth certificate applications in numbers
- 46
- Conservation areas in Wandsworth, from Battersea Square to the Alton Estates in Roehampton. Conservation areas FAQ (Wandsworth Council)
- 8
- Conservation areas Wandsworth lists as subject to Article 4 directions. Article 4 Directions (Wandsworth Council)
- Similar appearance
- The test Wandsworth applies to replacement windows and doors: materials of a similar look, with a matching glazing pattern and style. Conservation areas FAQ (Wandsworth Council)
- July 2026
- Issue date of Wandsworth’s local validation checklist. Local validation checklist, July 2026 (Wandsworth Council)
- 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)
- £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 certificate questions
Do I need a certificate to replace my windows in Wandsworth?
Not always. Like-for-like replacement on an unlisted house is permitted development, but Wandsworth recommends a certificate where you are in doubt.
Can I get a certificate in an Article 4 estate?
Not for works the direction controls. Those need planning permission, and we say so before you pay.
Does this cover a flat?
No. Wandsworth says flats and houses converted to flats have no permitted development rights for windows and doors.
How fast does Wandsworth decide?
It decided 597 of 657 householder cases within 8 weeks last year. We cannot promise a date for a certificate.
Other services people book with this one
- Rear extension drawings£439 drawings + £150 survey (£589 total)
- Loft conversion drawings£439 drawings + £150 survey (£589 total)
- Prior approval for a larger home extension£349 drawings + £150 survey (£499 total)
- Householder planning drawings£479 drawings + £150 survey (£629 total)
- Building regulations drawings£479 drawings + £150 survey (£629 total)
Price your Wandsworth certificate
Send the address and a photo of the windows or work. We say whether a certificate fits and quote a fixed fee.