Deptford SE8: floor plans for loft conversions and extensions
SE8 is the postcode district for Deptford, and most of it lies in the London Borough of Lewisham, so Lewisham Council decides most planning applications there. DrawingsDirect measures Deptford homes and draws floor plans to scale for a fixed fee starting at £275, the first step for a loft conversion, an extension or a survey.
Fixed fee from £275 · all prices
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Where is SE8, and who handles planning there?
SE8 covers Deptford in south-east London. Most of the district is in Lewisham, which is why the figures further down are Lewisham's. Postcode districts do not follow borough boundaries exactly, so if your street is near the edge of SE8, confirm the council on its planning pages before you apply. Whichever council it is, the drawings are what it reads.
Those drawings begin with an accurate record of the existing house.
Loft conversions in Deptford start on the floor below
A loft conversion is designed over the existing layout, because the new stair, the landing and the rooms beneath all limit the design. We measure each storey and draw it to scale; our loft conversion drawings service then draws the proposed loft over it.
Whether the loft needs a full application depends on the design. Our guide to planning permission for a loft conversion sets out the usual routes, and our analysis of MHCLG statistics, table PS1, shows Lewisham decided 722 certificates of lawful development over the eight quarters from 2024 Q3 to 2026 Q2.
Lewisham shows 30 live conservation-area entries on the national register in our analysis of the MHCLG Planning Data Platform conservation-area dataset (snapshot retrieved 14 August 2026).
Measured building survey in Deptford: what you get
Owners also look for a measured building surveyor in Deptford. We visit, measure and draw, and the starting fixed fee for scaled floor plans for sale, letting or lease is £275. For elevations and sections as well, ask about a measured building survey. Larger houses are priced to suit on the pricing page.
Lewisham decisions, in numbers
Our analysis of table PS2 of the same MHCLG statistics shows Lewisham made 578 householder decisions, prior approvals included, over the four quarters from 2025 Q3 to 2026 Q2, and granted 89% of them.
Most Lewisham appeals left the refusal in place: 30% of the 162 householder appeals decided between 2021 and 2026 were allowed, by our analysis of the Planning Inspectorate Casework Database (released 1 October 2026). Both figures are past records, not a prediction for your house.
Conservation areas in Lewisham
Lewisham shows 30 live conservation-area entries on the national register in our analysis of the MHCLG Planning Data Platform conservation-area dataset (snapshot retrieved 14 August 2026). Lewisham Council's conservation area map shows whether your Deptford street is inside one. See our glossary entry on conservation areas for what that means, and the making an application guidance for what plans an application needs.
Sources
Every figure on this page, where it comes from and a link to the original.
| Figure | Source | Link |
|---|---|---|
| £275 | DrawingsDirect starting fixed fee for scaled floor plans for sale, letting or lease, from the published price list | drawingsdirect.co.uk |
| 722 | Our analysis of MHCLG planning application statistics, table PS1 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 578 | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 89% | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 162 | Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609)) | www.gov.uk |
| 30% | Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609)) | www.gov.uk |
| 30 | 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 |