Loft conversion drawings in Maida Vale, W9
A Maida Vale loft conversion is rarely a routine job, because many homes here are in conservation areas and many are flats rather than houses. DrawingsDirect draws loft conversions for W9 properties from £695, with the heritage and planning route checked first.
Fixed fee from £495 drawings + £200 survey (£695 total) · all prices
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House or mansion-block flat: the rules differ
Permitted development rights for roof extensions belong to houses. They do not extend to flats, so a top-floor flat in a mansion block normally needs a planning application, and a leaseholder will usually need the freeholder's agreement as well. That is the first thing we establish for any W9 loft.
For a house, the permitted allowance is 40 cubic metres of added roof space for a terrace and 50 cubic metres for any other house. Those two figures come from Class B of Part 1 of the General Permitted Development Order. See our permitted development entry for the wider context.
Westminster's conservation areas and Article 4 directions
Maida Vale falls within the City of Westminster, for which the national register holds 56 conservation-area entries (our analysis of MHCLG Planning Data Platform conservation-area and article-4-direction datasets) and 10 article 4 direction entries (same analysis), though the article 4 list may be incomplete. Inside a conservation area, the roofline and street view carry extra weight in a decision.
Check your address on the City of Westminster's conservation area map and the government's conservation-area dataset, then read our conservation area entry for what the designation means for a roof.
In the four quarters to 2026 Q2, Westminster granted 82% of its householder decisions (our analysis of MHCLG planning application statistics, table PS2).
How Westminster has decided householder cases
In the four quarters to 2026 Q2, Westminster granted 82% of its householder decisions (our analysis of MHCLG planning application statistics, table PS2). Over the eight quarters to 2026 Q2 it decided 414 certificates of lawful development (our analysis of MHCLG planning application statistics, table PS1). These are past figures for the borough as a whole, so they cannot predict the result on one roof.
Drawings and fee for a W9 loft
Our fixed fee for loft conversion drawings with roof lights starts from £695, and the pricing page lists the other designs. If a basement is on your list as well, our basement conversion drawings page covers that work. Our guide to planning permission for a loft conversion sets out the questions we answer before drawing, and the loft conversion drawings service page lists what each set contains.
Sources
Every figure on this page, where it comes from and a link to the original.
| Figure | Source | Link |
|---|---|---|
| 414 | Our analysis of MHCLG planning application statistics, table PS1 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 10 | Our analysis of MHCLG Planning Data Platform conservation-area and article-4-direction datasets (bulk snapshot retrieved 14 Aug 2026) | www.planning.data.gov.uk |
| 82% | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 56 | Our analysis of MHCLG Planning Data Platform conservation-area and article-4-direction datasets (bulk snapshot retrieved 14 Aug 2026) | www.planning.data.gov.uk |
| 40 cubic metres | GPDO 2015 Sch 2 Pt 1 Class B.1(d): roof space volume addition limit, terrace house (source wording: 40 cubic metres) | www.legislation.gov.uk |
| 50 cubic metres | GPDO 2015 Sch 2 Pt 1 Class B.1(d): roof space volume addition limit, any other house (source wording: 50 cubic metres) | www.legislation.gov.uk |
| £695 | DrawingsDirect starting fixed fee for loft conversion (roof light) drawings, from the published price list | drawingsdirect.co.uk |
Questions people ask
Can I convert the loft of a mansion-block flat in Maida Vale?
How much are loft conversion drawings in W9?
Does a conservation area stop a loft conversion?
Photographs: David Hawgood (CC BY-SA 2.0).
