Dormer loft conversion drawings in Rotherhithe
A dormer loft conversion in Rotherhithe can be drawn on the permitted development route from £695 for a rear dormer or £745 for an L-shaped one, both with no VAT to add. Southwark granted 95% of its householder applications in the latest four quarters, and it lists 56 conservation-area entries, so check your street.
Fixed fee from £495 drawings + £200 survey (£695 total) · all prices
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Rear dormer and L-shaped dormer prices
A rear dormer starts at £695 with no VAT to add and an L-shaped dormer at £745, each for permitted development drawings and each published on the pricing page.
Which one suits a Rotherhithe house depends on its footprint: an L-shape adds floor area where a rear projection allows the roof to wrap round.
The two limits to draw within
On a terrace house a roof addition may add up to 40 cubic metres under the General Permitted Development Order, and the enlargement must be set back at least 0.2 metres from the eaves, measured along the roof slope.
Southwark decided 418 of them over eight quarters.
Conservation areas come first in Southwark
Southwark has 56 live conservation-area entries in the national planning data. Confirm the position on the council's map before commissioning drawings.
Southwark's decision record
In the latest four quarters Southwark decided 558 householder applications, granted 95% of them and decided 97% within eight weeks.
On appeal, 72 householder cases were decided and 31% were allowed. These are borough-wide figures covering all home improvements.
Proving a dormer is permitted
A certificate of lawful development is written proof for a sale or lender. Southwark decided 418 of them over eight quarters.
Sources
Every figure on this page, where it comes from and a link to the original.
| Figure | Source | Link |
|---|---|---|
| £695 | DrawingsDirect starting fixed fee for rear dormer loft conversion permitted development drawings, with no VAT to add, from the published price list | drawingsdirect.co.uk |
| £745 | DrawingsDirect starting fixed fee for L-shaped dormer loft conversion permitted development drawings, with no VAT to add, from the published price list | drawingsdirect.co.uk |
| 40 cubic metres | GPDO 2015 Sch 2 Pt 1 Class B.1(d)(i): roof additions may add up to 40 cubic metres to the roof space of a terrace house (source wording: "40 cubic metres in the case of a terrace house") | www.legislation.gov.uk |
| 0.2 metres | GPDO 2015 Sch 2 Pt 1 Class B.2(b): a roof enlargement must be set back not less than 0.2 metres from the eaves, measured along the roof slope (source wording: "not less than 0.2 metres from the eaves") | www.legislation.gov.uk |
| 558 | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 95% | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 97% | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 72 | Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609)) | www.gov.uk |
| 31% | Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609)) | 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 |
| 418 | Our analysis of MHCLG planning application statistics, table PS1 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
Photographs: GRALISTAIR (CC BY-SA 4.0); David Hawgood (CC BY-SA 2.0).
