Loft conversions in Twickenham, TW2
For a Twickenham loft conversion we draw the existing roof, the new room and the staircase to scale, then check the scheme against the permitted limits of 40 cubic metres for a terrace and 50 cubic metres for any other house. Drawings for TW2 homes start from £695.
Fixed fee from £495 drawings + £200 survey (£695 total) · all prices
Prefer to talk it through?
Why TW2 owners often ask about dormers
Where a TW2 roof is steep and simple, a rear dormer is the usual way to gain headroom. It also uses most of the roof allowance, so we calculate the volume before the design is fixed. A roof-light scheme uses far less, and suits a loft that already has good height.
See our dormer loft conversion drawings page for that design in detail.
Permitted limits, and when they stop applying
The volume limits sit in Class B of Part 1 of the General Permitted Development Order. They apply to houses, and the council can remove them with an Article 4 direction on a particular street. Our Article 4 entry shows how to tell whether yours has one.
The national register carries 85 conservation-area entries for Richmond upon Thames (our analysis of MHCLG Planning Data Platform conservation-area and article-4-direction datasets). Look up your Twickenham road on the council's conservation area map, with the conservation-area dataset as a cross-check.
The national register carries 85 conservation-area entries for Richmond upon Thames (our analysis of MHCLG Planning Data Platform conservation-area and article-4-direction datasets).
The Richmond upon Thames decision record
Twickenham is decided by the London Borough of Richmond upon Thames. The council granted 83% of its householder decisions in the four quarters to 2026 Q2 (our analysis of MHCLG planning application statistics, table PS2), and decided 917 certificates of lawful development over the eight quarters to 2026 Q2 (our analysis of MHCLG planning application statistics, table PS1).
Both figures describe the borough in the past. For your own loft, the design and the street decide the result.
Cost and the way we work
Drawings for a roof-light loft conversion start from £695, and the pricing page covers other designs. Our guide to loft conversion costs gives the wider budget. If your plan also includes the garage, our garage conversion drawings in Twickenham TW1 page covers that. The main loft conversion drawings service page lists every sheet.
Sources
Every figure on this page, where it comes from and a link to the original.
| Figure | Source | Link |
|---|---|---|
| 917 | Our analysis of MHCLG planning application statistics, table PS1 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 83% | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 85 | 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
How much are loft conversion drawings in Twickenham?
Will a dormer fit inside the permitted limit?
Do you draw lofts in TW1 as well as TW2?
Photographs: David Howard (CC BY-SA 2.0).
