For Northolt property owners: MCIAT chartered extension plans. Every Northolt application lands on a Ealing Council desk, assessed under the Ealing Local Plan rather than any national default.
House Extension Drawings in Northolt are survey-based Northolt drawings for a rear, side or wrap-around extension in UB5. In the UB5 postcode area they are assessed by Ealing Council against the Ealing Local Plan, and they fix the Northolt depth against permitted-development limits, answer the 45-degree amenity test Ealing Council applies, and locate the party wall on the 1930s semi-detached.
An Article 4 Direction applies across Ealing, so check it before assuming Northolt permitted development survives. You cannot design for Northolt without accounting for the fact that it is 1930s semi-detached, post-war estates. Acton Green is the designation that most often reshapes a Northolt proposal; Ealing carries 30 of them. We plot the Northolt site against the designation before quoting.
How Article 4 directions apply to your Northolt street is settled at survey stage, not after submission. What can be built on a Northolt plot is decided by the 1930s semi-detached — the original rear wall position first, the Northolt Tube roofline second. The borough policy layer over every UB5 address is set out on Ealing planning. The Northolt survey then carries into building regulations drawings in Northolt if the project runs on to construction.



One to two weeks at London Borough of Ealing before a Northolt case reaches an officer. No Northolt design work starts until the measured survey is complete.
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.
Once Ealing Council registers the Northolt case, the officer site visit usually follows within a fortnight. The set is checked against the London Borough of Ealing validation list before it goes in.
Speaking to UB5 neighbours before submission avoids most of it. A Northolt measured survey captures the roof structure as well as the plan.
Because Northolt houses generally share walls, budget time for party wall notices alongside the UB5 application. Once consent is granted, loft conversion drawings follows for the UB5 property.
Northolt is characterised by 1930s semi-detached, post-war estates, concentrated across UB5 in the Northolt area. What the 1930s semi-detached in Northolt allows is a construction question first and a planning question second, and the survey answers it. Translated to the 1930s semi-detached here: 1930s semis here have the deepest rear gardens in the area, which is why the 6 m and 8 m larger-home prior approval route gets used so often. It shapes what a UB5 scheme can realistically achieve. Ridge and eaves lines along Northolt streets are the reference Ealing Council uses.
A Northolt basement stands on its drainage and party wall evidence. Survey data from the Northolt property flows straight into architectural drawings for UB5 properties or planning permission without a second site visit.
No add-ons later — the Northolt scope is set out here.
Surveyors travel to UB5 addresses from the studio; the nearest stations are Northolt Park, Northolt, South Ruislip station, File:Northolt station westbound.JPG. Appointments are booked in Northolt on weekdays and Saturdays, and the measured survey of a standard 1930s semi-detached takes two to three hours.
on Ordnance Survey grid reference TQ135845. We draw the Northolt location and block plans from that reference, which is what Ealing Council validates against. Source.
Practical detail for a Northolt submission: we reach Northolt sites via Northolt Park and Northolt and South Ruislip station and File:Northolt station westbound.JPG; addresses are written to NORTHOLT; dialling code 020. Site plans are drawn to the address as Ealing Council holds it.
Coverage runs across UB5 (Northolt), which Northolt holds on its own — and Ealing Council validates against the address, so the district line matters more than the street name.
Typical Northolt work sits on Sudbury Hill and Greenford Green. most Northolt sites are within walking distance of Northolt Park or Northolt or South Ruislip station.
Neighbouring coverage runs to Wembley (HA0, HA9), Kilburn (NW6), Queen's Park (NW6), Harlesden (NW10), Mapesbury (NW2), Kensal Green (NW10); the Ealing policy is shared but the stock and the designations are not.

What moves the number on a Northolt job is the 1930s semi-detached itself — party walls, level changes, and whether Acton Green pulls a heritage statement into scope.
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.
We do not mark up the London Borough of Ealing fee — it is paid at submission. London planning approval-rate dataset · Ealing planning · our London house extension drawings service · house extension drawings in Wembley.
An MCIAT chartered technologist owns the Northolt project from survey to decision. Borderline Northolt sites (anything overlooking Northolt Tube, anything with a Acton Green frontage) go to Ealing Council for pre-application advice before we submit.
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.
A short call about the Northolt property is usually enough to scope the job. This Northolt page was reviewed in August 2026.
Sometimes yes, sometimes no — the Northolt address decides it. An Article 4 Direction applies across Ealing, so check it before assuming Northolt permitted development survives. A £274 certificate records the answer for a future buyer.
Conservation status in Northolt typically means Acton Green, one of 30 across Ealing.
Northolt is dominated by 1930s semi-detached, post-war estates. The UB5 district (Northolt) covers most addresses we survey, and the 1930s semi-detached sets the structural approach long before the planning route does. Every survey is laser-measured.
We cover Wembley, the wider Ealing area and across into Brent. The reason Northolt has a separate page is that a consent granted a mile off is no precedent for a UB5 street.

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