Architectural drawings in UB3

Which UB3 postcodes does this drawing package service cover?

Every UB3 postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. UB3 fees below are the statutory England rates for 2026, not drawing package estimates.

Which UB3 neighbourhoods suit a drawing package best?

Roof pitch, wall build-up and plot depth change every few UB3 streets, and each one changes what a drawing package can achieve at that address.

• Inside UB3: Hayes (UB3, UB4) — drawing package work in Hayes means 1930s semi-detached, post-war estates. Hayes is 1930s semi-detached, post-war. Hillingdon Council decides the Hayes application, and Hayes & Harlington anchors the Hayes location plan.
• Bordering UB3: Uxbridge (UB8) — drawing package work in Uxbridge means georgian fragments, 1930s semi-detached, post-war flats. Uxbridge is Georgian centre, 1930s residential. Hillingdon Council decides the Uxbridge application, and Uxbridge High Street anchors the Uxbridge location plan.
• Bordering UB3: Ruislip (HA4) — 1930s semi-detached, Tudor fragments defines Ruislip, where 1930s semi-detached, tudor cottages set what a drawing package can do. Any Ruislip drawing package is validated by Hillingdon Council, with Ruislip Lido the usual Ruislip reference point on the site plan.
• Bordering UB3: Northwood (HA6) — drawing package work in Northwood means 1930s detached, edwardian villas. Northwood is 1930s detached and semi-detached. Hillingdon Council decides the Northwood application, and Northwood Hills anchors the Northwood location plan.
• Bordering UB3: West Drayton (UB7) — 1930s semi-detached defines West Drayton, where 1930s semi-detached, post-war set what a drawing package can do. Any West Drayton drawing package is validated by Hillingdon Council, with West Drayton station the usual West Drayton reference point on the site plan.
• Bordering UB3: Ickenham (UB10) — drawing package work in Ickenham means 1930s semi-detached, tudor fragments. Ickenham is 1930s semi-detached, village conservation. Hillingdon Council decides the Ickenham application, and Ickenham Village anchors the Ickenham location plan.
• Bordering UB3: Harefield (UB9) — a drawing package in Harefield starts from tudor and georgian fragments, 1930s semi-detached, and Harefield reads as village conservation, rural fringe. in UB9. Hillingdon Council assesses Harefield architectural drawings against its own Harefield character guidance, and the location plan we draw for Harefield references Harefield Hospital.
• Bordering UB3: Yiewsley (UB7) — a drawing package in Yiewsley starts from 1930s semi-detached, and Yiewsley reads as 1930s semi-detached. in UB7. Hillingdon Council assesses Yiewsley architectural drawings against its own Yiewsley character guidance, and the location plan we draw for Yiewsley references Yiewsley High Street.
• Bordering UB3: Eastcote (HA5) — 1930s semi-detached defines Eastcote, where 1930s semi-detached set what a drawing package can do. Any Eastcote drawing package is validated by Hillingdon Council, with Eastcote Tube the usual Eastcote reference point on the site plan.
• Bordering UB3: Hillingdon (UB10) — a drawing package in Hillingdon starts from 1930s semi-detached, and Hillingdon reads as 1930s semi-detached, post-war. in UB10. Hillingdon Council assesses Hillingdon architectural drawings against its own Hillingdon character guidance, and the location plan we draw for Hillingdon references Hillingdon Tube.

How do conservation areas and Article 4 affect a drawing package in UB3?

UB3 (Hayes / Harlington) conservation designations: there are 29 across Hillingdon Council, Northwood, Harefield, Ickenham among them. Designation costs a UB3 (Hayes / Harlington) owner the permitted-development route: a drawing package then needs a £548 householder application over 8 weeks, in place of the £249 prior approval route that takes 6 weeks. Ickenham is the UB3 (Hayes / Harlington) designation that most often changes a drawing package design.

UB3 (Hayes / Harlington) permitted development status: there is no borough-wide direction from Hillingdon Council, so a drawing package at a UB3 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a UB3 (Hayes / Harlington) sale to argue it later.

The building fabric around UB3 (Hayes / Harlington): 1930s semi-detached dominates; Metropolitan Green Belt covers much of north Hillingdon; Victorian cottages in Uxbridge and Ruislip villages; post-war housing near Heathrow. Largest outer west London borough; significant Green Belt; Heathrow noise contours affect planning decisions in Harmondsworth and Sipson. A drawing package in UB3 (Hayes / Harlington) is scoped against that stock first, because it decides whether the scheme runs as permitted development, a £274 Lawful Development Certificate, or a full £548 application to Hillingdon Council.

What happens if a UB3 property sits on a boundary?

• Harrow — cross the UB3 (Hayes / Harlington) boundary and Harrow Council takes the drawing package instead, applying 29 conservation areas of its own around HA1. We re-price architectural drawings at the UB3 (Hayes / Harlington) edge because Harrow policy and Hillingdon policy rarely align on drawing package depth.
• Ealing — the Ealing boundary runs against Hillingdon, so a drawing package a street from UB3 (Hayes / Harlington) is decided by Ealing Council instead. Ealing runs 30 conservation areas across W3 and its neighbours, which is why architectural drawings priced for UB3 (Hayes / Harlington) are re-checked against Ealing policy whenever the UB3 (Hayes / Harlington) address sits on that edge.
• Hounslow — the Hounslow boundary runs against Hillingdon, so a drawing package a street from UB3 (Hayes / Harlington) is decided by Hounslow Council instead. Hounslow runs 30 conservation areas across W3 and its neighbours, which is why architectural drawings priced for UB3 (Hayes / Harlington) are re-checked against Hounslow policy whenever the UB3 (Hayes / Harlington) address sits on that edge.

Sources for this UB3 drawing package page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.