Building Regulations Drawings in Hillingdon

Which Hillingdon postcodes does this building regulations package service cover?

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

What changes about a building regulations package in each part of Hillingdon?

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

• Ruislip (HA4) — building regulations package work in Ruislip means 1930s semi-detached, tudor cottages. Ruislip is 1930s semi-detached, Tudor fragments. 1930s cavity walls here take standard full-fill or partial-fill detailing throughout HA4. Hillingdon Council decides the Ruislip application, and Ruislip Lido anchors the Ruislip location plan.
• Northwood (HA6) — a building regulations package in Northwood starts from 1930s detached, edwardian villas, and Northwood reads as 1930s detached and semi-detached. Edwardian houses here are usually early cavity or solid wall in HA6. Hillingdon Council assesses Northwood building regulations drawings against its own Northwood character guidance, and the location plan we draw for Northwood references Northwood Hills.
• Hayes (UB3, UB4) — building regulations package work in Hayes means 1930s semi-detached, post-war estates. Hayes is 1930s semi-detached, post-war. 1930s cavity walls here take standard full-fill or partial-fill detailing throughout UB3. Hillingdon Council decides the Hayes application, and Hayes & Harlington anchors the Hayes location plan.
• West Drayton (UB7) — 1930s semi-detached defines West Drayton, where 1930s semi-detached, post-war set what a building regulations package can do. 1930s cavity walls here take standard full-fill or partial-fill detailing across UB7. Any West Drayton building regulations package is validated by Hillingdon Council, with West Drayton station the usual West Drayton reference point on the site plan.
• Ickenham (UB10) — building regulations package work in Ickenham means 1930s semi-detached, tudor fragments. Ickenham is 1930s semi-detached, village conservation. 1930s cavity walls here take standard full-fill or partial-fill detailing throughout UB10. Hillingdon Council decides the Ickenham application, and Ickenham Village anchors the Ickenham location plan.
• Harefield (UB9) — building regulations package work in Harefield means tudor and georgian fragments, 1930s semi-detached. Harefield is village conservation, rural fringe. Georgian solid walls here cannot take standard cavity detailing throughout UB9. Hillingdon Council decides the Harefield application, and Harefield Hospital anchors the Harefield location plan.
• Yiewsley (UB7) — building regulations package work in Yiewsley means 1930s semi-detached. Yiewsley is 1930s semi-detached. 1930s cavity walls here take standard full-fill or partial-fill detailing throughout UB7. Hillingdon Council decides the Yiewsley application, and Yiewsley High Street anchors the Yiewsley location plan.

How do conservation areas and Article 4 affect a building regulations package in Hillingdon?

How designation changes a Hillingdon building regulations package: Hillingdon Council maintains 29 conservation areas, including Harefield, Ickenham, Uxbridge. Inside any of them a Hillingdon building regulations package cannot rely on permitted development, and the route becomes a £548 householder application determined in 8 weeks rather than a £249 prior approval in 6 weeks. Ruislip Village sets the tone for Hillingdon casework.

Hillingdon permitted development status: there is no borough-wide direction from Hillingdon Council, so a building regulations package at a HA4 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a Hillingdon sale to argue it later.

Hillingdon housing stock: 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. Read that before choosing a building regulations package route in Hillingdon — construction, not postcode, sets what is achievable. Hillingdon Council charges £548 for a householder application and has 8 weeks to determine it.

Who decides a building regulations package on the edge of Hillingdon?

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

Sources for this Hillingdon building regulations 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.