Planning Permission in Northwood | Fixed-Fee Plans

No Article 4 Direction covers Hillingdon, which keeps the Northwood permitted-development route open on unlisted houses. The Northwood setting is 1930s detached and semi-detached, which shapes what passes near Northwood Hills. Hillingdon carries 29 conservation areas; if the HA6 address falls in Uxbridge or Ruislip Village, expect the permitted-development route to close and a full Hillingdon Council application to be the faster answer. That boundary is verified for the HA6 property at the outset.

Knowing how Article 4 directions apply to your HA6 address is the first thing we establish. The 1930s detached in Northwood decides the depth before policy does. The borough policy layer over every HA6 address is set out on Hillingdon planning. The Northwood survey then carries into loft conversion drawings in Northwood if the project runs on to construction.

The Northwood clock does not start until London Borough of Hillingdon validates — one to two weeks. Step one at a HA6 address is a full measured survey of the existing building.

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.

London Borough of Hillingdon publishes the Northwood application online during consultation. Scales, north point and drawing numbers all follow Hillingdon Council validation requirements.

We design Northwood schemes to answer the amenity objection before it is written. We photograph the Northwood property alongside the measurements for the record.

On Northwood stock the party wall stage is routine and worth timetabling. Once consent is granted, house extension drawings follows for the HA6 property.

Northwood is characterised by 1930s detached, edwardian villas, concentrated across HA6 in the Northwood area. On Northwood streets the 1930s detached sets the structural grammar for everything that follows. On the Northwood stock specifically: edwardian houses here typically need the same householder set plus a roof plan where a dormer is proposed. It is the first thing checked at the Northwood survey. London Borough of Hillingdon officers compare a HA6 scheme to the block it sits in, not to a policy number.

Subterranean work in Northwood has no dedicated borough policy behind it; the HA6 water table and the party walls are the real constraints. Because the Northwood survey is drawn properly once, architectural drawings for HA6 properties and building regulations drawings build on it rather than starting again.

What the Northwood drawing pack contains

• site location plan for the Northwood property
• block plan
• existing and proposed floor plans
• existing and proposed elevations
• Design & Access Statement

Local landmarks that shape a Northwood application

• Carpenders Park — terraced rear elevations — the Carpenders Park party wall position is drawn first.
• Northwood Hills — massing on adjoining HA6 plots is tested against it.
• Haydon School — sightlines from here are part of the Hillingdon Council character assessment.
• Mount Vernon Hospital — schemes in view of it attract closer officer scrutiny.
• Ealing Hospital — it fixes the local datum a Northwood roof extension is judged against.

Getting to a Northwood survey

Surveyors travel to HA6 addresses from the studio; the nearest stations are Northwood station, Northwood, Northwood Hills, Moor Park. Appointments are booked in Northwood on weekdays and Saturdays, and the measured survey of a standard 1930s detached takes two to three hours.

Where Northwood sits

Northwood lies 2 miles (23 km) northwest of Charing Cross, on Ordnance Survey grid reference TQ095915, inside the Ruislip, Northwood and Pinner parliamentary constituency. Getting that wrong is the commonest reason a Northwood submission is returned. Source.

Practical detail for a Northwood submission: we reach Northwood sites via Northwood station and Northwood and Northwood Hills and Moor Park; NORTHWOOD is the post town on Northwood addresses; dialling code 020, 01923. Site plans are drawn to the address as Hillingdon Council holds it.

Northwood postcode coverage

Our Northwood coverage takes in HA6 (Northwood), which Northwood holds on its own.

Streets and stations in Northwood

Typical Northwood work sits on Carpenders Park. most Northwood sites are within walking distance of Northwood station or Northwood or Northwood Hills.

Areas we cover around Northwood

Coverage from Northwood extends to Yiewsley (UB7), Eastcote (HA5), Hillingdon (UB10), Harrow on the Hill (HA1), Pinner (HA5), Stanmore (HA7) and into Harrow.

You know the number before the surveyor is booked. Two Northwood jobs differ in price because of the 1930s detached and the Uxbridge designation, never because of hours booked.

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.

Statutory fees for HA6 addresses are payable to London Borough of Hillingdon on the day it is lodged. London planning approval-rate dataset · Hillingdon planning · Planning Permission London-wide · planning permission in Yiewsley.

Chartered accountability applies to every HA6 drawing we issue. A tight Northwood plot — Northwood Hills in the setting, a shared flank wall on HA6 — goes to Hillingdon Council for advice before it goes to determination.

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 Northwood property is usually enough to scope the job. This Northwood page was reviewed in August 2026.