Mansard loft conversion drawings in Walthamstow, E17
Yes, we draw mansard lofts for Walthamstow homes, and the householder planning drawings start at £845 fixed with no VAT to add. Walthamstow sits in Waltham Forest, so the application goes to that council, and this page sets out what it decided recently and what it charges.
Fixed fee from £645 drawings + £200 survey (£845 total) · all prices
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What the £845 buys, and the package above it
The £845 is our published starting fee for mansard loft conversion drawings prepared for a householder planning application. It is a fixed fee with no VAT to add, and it is listed on the pricing page for anyone to check.
If you would rather have one fee for the whole job, the all-inclusive mansard package starts at £1,845 with no VAT to add. That all-inclusive fee covers planning, building regulations and structural drawings together, so you are not pricing three separate stages.
Does a mansard fit permitted development in E17?
A mansard changes the whole roof slope, so it is worth knowing the permitted development yardstick before you decide. For a terrace house, the national rules for roof additions allow up to 40 cubic metres to be added to the roof space.
If your house is a terrace, that is the figure to measure against first. Whether a particular mansard stays inside it, or needs a full planning application instead, depends on your roof and the design. A measured survey of the house gives the actual volumes.
Across recent years, 193 householder appeals against Waltham Forest decisions were decided, and 36% of them were allowed.
The council fee on top of our drawings
When the drawings go in as a householder application, Waltham Forest charges the national fee for altering or enlarging a single dwellinghouse, which is £548.
That is the council's charge, set nationally, and it is separate from our fee.
How Waltham Forest has been deciding householder applications
In the latest four quarters of government figures, Waltham Forest made 771 householder decisions, counting prior approvals. Of those, 81% were granted.
Speed is the other half of the picture. The statutory period for an application that is not major development is 8 weeks, and the council decided 90% of its householder cases, prior approvals excluded, inside that window.
These are borough-wide figures for every kind of householder work, not for mansards alone. They show the council's general record, not a forecast for your roof.
When a refusal goes to appeal
Not every refusal ends there, but some are taken to the Planning Inspectorate. Across recent years, 193 householder appeals against Waltham Forest decisions were decided, and 36% of them were allowed.
That means most householder appeals in the borough were dismissed, so a refusal is better avoided at the drawing stage than fought afterwards.
Check your street for conservation area status
Waltham Forest has 15 live conservation areas, so it is worth finding out early whether your address sits inside one before the design is settled.
The council's own conservation area map is the place to check an address.
Sources
Every figure on this page, where it comes from and a link to the original.
| Figure | Source | Link |
|---|---|---|
| £845 | DrawingsDirect starting fixed fee for mansard loft conversion householder planning drawings, with no VAT to add, from the published price list | drawingsdirect.co.uk |
| £1,845 | DrawingsDirect starting fixed fee for an all-inclusive mansard package (planning, building regulations and structural), with no VAT to add, from the published price list | drawingsdirect.co.uk |
| £548 | Fees for planning applications in England from 1 April 2026 (MHCLG, SI 2012/2920 as annually indexed), category 6(1): householder application for the enlargement, improvement or alteration of a single dwellinghouse (source wording: £548) | assets.publishing.service.gov.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 |
| 771 | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 81% | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 90% | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 193 | Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609)) | www.gov.uk |
| 36% | Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609)) | www.gov.uk |
| 15 | 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 |
| 8 weeks | DMPO 2015 art 34(2)(b): decision period for an application that is not major development (source wording: "8 weeks beginning with the day immediately following that on which the application is received") | www.legislation.gov.uk |
Photographs: GRALISTAIR (CC BY-SA 4.0); GRALISTAIR (CC BY-SA 4.0).
