House Extension Drawings in Hanwell |

An Article 4 Direction applies across Ealing, so check it before assuming Hanwell permitted development survives. Officers see Hanwell as Edwardian villas, 1930s semi-detached — design that ignores it struggles. Where a Hanwell property sits inside Ealing Broadway or Pitshanger — two of Ealing's 30 designations — permitted development narrows and a full Ealing Council submission is usually quicker. We establish it for the W7 address before any drawing begins.

How Article 4 directions apply to your Hanwell street is settled at survey stage, not after submission. What can be built on a Hanwell plot is decided by the edwardian villas — the original rear wall position first, the Hanwell viaduct roofline second. The borough policy layer over every W7 address is set out on Ealing planning. The Hanwell survey then carries into loft conversion drawings in Hanwell if the project runs on to construction.

Expect one to two weeks of London Borough of Ealing validation on a Hanwell submission before the statutory period even begins. Nothing is drawn for a W7 address until the existing building is measured.

Statutory periods: 8 weeks from validation for a householder application, 13 weeks for a major scheme, 6 weeks for prior approval with a 21 days neighbour consultation, and 5 weeks for a full plans building control submission. A party structure notice requires one month notice and two months where excavation is involved.

A Hanwell case only reaches committee if it draws significant objection. A Hanwell pack that misses a scale bar is a pack London Borough of Ealing will reject — ours do not.

Comments on a Hanwell application are visible on the London Borough of Ealing portal. Existing structure in the edwardian villas is identified at survey, not guessed later.

The party wall step is not optional on shared Hanwell walls, and serving late is what stalls sites. Once consent is granted, architectural drawings follows for the W7 property.

Hanwell is characterised by edwardian villas, 1930s semi-detached, concentrated across W7 in the Hanwell area. On Hanwell plots, structure follows the edwardian villas that is already there. The Hanwell version of that is simple: edwardian plots here are wider, so a wraparound picking up both the side return and the rear is normally achievable within the 4 m detached / 3 m attached limits. On Hanwell plots that shows up in the section drawings. Ealing Council judges massing against the established Hanwell rhythm — the eaves and ridge lines running past Hanwell viaduct.

A W7 dig turns on engineering more than on policy. A Hanwell survey done once feeds planning permission for W7 properties and building regulations drawings later.

What the Hanwell drawing pack contains

The drawing schedule for a Hanwell project runs as follows.

• existing and proposed ground-floor plans for the Hanwell property
• proposed rear elevation
• long section through the extension
• site and block plans
• party wall position drawing

Streets and landmarks we survey around Hanwell

• Holy Trinity Gough Square — front-to-back level changes that drive the Holy Trinity Gough Square section drawings.
• Uxbridge Road — gardens deep enough for the 8 weeks householder route on a Uxbridge Road plot.
• Norwood Green — frontages visible from the highway, so Ealing Broadway materials detail governs the Norwood Green elevation.
• Acton Vale — closet wings that change how a rear extension meets the Acton Vale back addition.
• Hanwell viaduct — the surrounding edwardian villas takes its scale from it.
• Brentside High School — it fixes the local datum a Hanwell roof extension is judged against.
• Drayton Manor High School — schemes visible from it get closer scrutiny in Ealing.
• Elthorne Park High School — it fixes the local datum a Hanwell roof extension is judged against.
• Royal Academy — nearby edwardian villas takes its scale from this frontage.

Getting to a Hanwell survey

Surveyors travel to W7 addresses from the studio; the nearest stations are Hanwell, Castle Bar Park, Drayton Green, Greenford. Appointments are booked in Hanwell on weekdays and Saturdays, and the measured survey of a standard edwardian villas takes two to three hours.

Where Hanwell sits

on Ordnance Survey grid reference TQ153802, with the River Brent shaping drainage and flood-risk questions on lower-lying W7 plots, inside the Ealing North parliamentary constituency. Location and block plans for Hanwell start from that grid square. Source.

Practical detail for a Hanwell submission: the closest stations to a W7 site are Hanwell and Castle Bar Park and Drayton Green and Greenford; post town for the area is LONDON; dialling code 020; Grade II English Heritage and Grade II listed building are listed nearby, which affects adjacent W7 schemes. Site plans are drawn to the address as Ealing Council holds it.

Hanwell postcode coverage

Hanwell work spans W7 (Hanwell), which Hanwell holds on its own, with the W7 boundary setting which designations bite.

Streets and stations in Hanwell

We survey Hanwell addresses on Holy Trinity Gough Square, Uxbridge Road, Norwood Green and Acton Vale. most Hanwell sites are within walking distance of Hanwell or Castle Bar Park or Drayton Green. and Grade II English Heritage, Grade II listed building are listed, which pulls neighbouring W7 proposals into a setting assessment.

Areas we cover around Hanwell

Besides Hanwell: Chiswick (W4), Brentford (TW8), Isleworth (TW7), Hounslow (TW3), Feltham (TW13), Hanworth (TW13), plus Hillingdon across the border.

The variables on a W7 job are structural: party walls, floor levels, and whether the Ealing Broadway designation adds a heritage statement.

Statutory application fees are set by regulation, not by the council: £548 householder, £610 for a new dwelling, £274 for a lawful development certificate, £249 for prior approval.

None of the London Borough of Ealing statutory fee reaches us on a Hanwell job. London planning approval-rate dataset · Ealing planning · house extension drawings across London · house extension drawings in Chiswick.

The technologist who surveys your Hanwell property signs the drawings. Not every Hanwell scheme is clear-cut. Where Ealing Broadway or the Hanwell viaduct setting is in play, Ealing Council pre-application advice comes before the W7 submission.

Drawings are produced by chartered members of the Chartered Institute of Architectural Technologists (MCIAT), the professional body for technical design and building-regulations competence. First-time approval across our London caseload is 98%. Statutory fees shown are those in force in England in 2026 under the Town and Country Planning (Fees for Applications) Regulations. Confirm your local authority at gov.uk and submission requirements on the Planning Portal. Studio: 71–75 Shelton Street, London WC2H 9JQ.

Tell us the W7 address and what you want to build; the rest we handle. This Hanwell page was reviewed in August 2026.