Rear extension drawings in Northolt UB5
Rear extension drawings in Northolt start from £695. When an Ealing householder refusal is taken to appeal, 43% of the 205 appeals decided between 2021 and 2026 were allowed (our analysis of the Planning Inspectorate Casework Database, release 2609). The drawings in front of the case officer carry the argument.
Fixed fee from £495 drawings + £200 survey (£695 total) · all prices
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What Ealing's appeal record says about your drawings
Our analysis of the Planning Inspectorate Casework Database counts 205 householder appeals decided for Ealing between 2021 and 2026, of which 43% were allowed. Appeals are a small, self-selected group, since only people who disagreed with a refusal take one, so the 43% is not Ealing's refusal rate. It is a record of how often an inspector took a different view of the same plans.
For a Northolt homeowner the practical point is that a refusal is not always the end. It is also a reason to get the drawings right the first time, with the extension, the boundary and the neighbours' windows all shown. Our guide to the planning appeal process explains the steps if it comes to that.
The 3 and 6 metre limits for a Northolt house
A single-storey rear extension on a house that is not detached can extend up to 3 metres beyond the original rear wall under permitted development, or up to 6 metres with prior approval for a larger home extension (GPDO 2015, Schedule 2, Part 1, Class A, on legislation.gov.uk).
In the eight quarters to 2026 Q2 Ealing determined 193 larger home extension prior approvals and granted 20% of them (our analysis of MHCLG planning application statistics, table PS1). Notifications the council decided did not need approval are left out of that count, so the figure does not cover every deep extension. The rear extension drawings overview shows what each route needs from us.
Our analysis of the MHCLG Planning Data Platform finds 31 live conservation-area entries on the national register for Ealing (bulk snapshot retrieved 14 Aug 2026).
Daylight objections in Northolt and Greenford
Neighbours in Northolt and Greenford who object may do so on light, outlook or overbearing grounds, and the council weighs those against the plans. We do not carry out daylight or right to light assessments, which are specialist work, but we draw the neighbouring windows and the extension's height at the boundary so that an assessor or the case officer can see the relationship.
A measured survey of your own house gives every later step accurate existing plans. See our measured building survey service.
Householder decisions in Ealing
Ealing decided 946 householder applications in the four quarters to 2026 Q2, including prior approvals, and granted 87% of them (our analysis of MHCLG planning application statistics, table PS2).
That is the council's record across every type of householder scheme. A rear extension that goes past the permitted development limits joins that group, and the outcome depends on the individual scheme.
Conservation areas in Ealing and what we charge
Our analysis of the MHCLG Planning Data Platform finds 31 live conservation-area entries on the national register for Ealing (bulk snapshot retrieved 14 Aug 2026). The register may be incomplete, so check Ealing Council's conservation area map for your road. Our conservation area extension guide covers the differences.
Rear extension drawings start from £695, with a fixed fee confirmed once we know the address. The pricing page lists the other fees.
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 single-storey rear extension drawings (survey and planning or permitted development drawings), from the published price list | drawingsdirect.co.uk |
| 3 metres | GPDO 2015 Sch 2 Pt 1 Class A.1(f)(i): a single-storey rear extension may extend beyond the rear wall of the original house by up to 3 metres, house other than detached (source wording: 3 metres) | www.legislation.gov.uk |
| 6 metres | GPDO 2015 Sch 2 Pt 1 Class A.1(g): larger home extension under the prior approval process (A.4), house other than detached, up to 6 metres beyond the original rear wall (source wording: 6 metres) | www.legislation.gov.uk |
| 946 | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 87% | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 205 | Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609)) | www.gov.uk |
| 43% | Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609)) | www.gov.uk |
| 193 | Our analysis of MHCLG planning application statistics, table PS1 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 20% | Our analysis of MHCLG planning application statistics, table PS1 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 31 | 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 |
Questions people ask
How much do rear extension drawings cost in Northolt?
How often are householder refusals overturned on appeal in Ealing?
Do you carry out daylight assessments in Northolt?
Can I build a 6 metre rear extension in Northolt?
Photographs: David Hawgood (CC BY-SA 2.0).
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