Hillingdon approved 84.2% of 3,978 householder applications, 2023 Q2 to 2026 Q1. MCIAT-chartered.
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Every Hillingdon postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. Hillingdon fees below are the statutory England rates for 2026, not drawing package estimates.
| Postcode | Area | Dominant stock | What it means for a drawing package |
|---|---|---|---|
| UB10 | Hillingdon / Ickenham | 1930s semi-detached, Tudor fragments | A drawing package at an UB10 address in Hillingdon / Ickenham is determined by Hillingdon Council under its own Local Plan policies for Hillingdon / Ickenham. |
| UB11 | Stockley Park | 1930s semi-detached dominates; Metropolitan Green Belt covers much of north Hillingdon; Victorian cottages in Uxbridge and Ruislip villages; post-war housing near Heathrow | A drawing package at an UB11 address in Stockley Park is determined by Hillingdon Council under its own Local Plan policies for Stockley Park. |
| HA4 | Ruislip | 1930s semi-detached, Tudor cottages | Ruislip sits wholly inside HA4, so Hillingdon Council validates every drawing package submitted from an HA4 address. |
| HA5 | Pinner / Eastcote | Tudor fragments, Edwardian villas, 1930s semi-detached | A drawing package in Pinner / Eastcote may land with Hillingdon Council or Harrow Council — HA5 crosses the boundary, and the HA5 policies map decides it street by street. |
| HA6 | Northwood | 1930s detached, Edwardian villas | A drawing package at an HA6 address in Northwood is determined by Hillingdon Council under its own Local Plan policies for Northwood. |
| UB3 | Hayes / Harlington | 1930s semi-detached, post-war estates | A drawing package at an UB3 address in Hayes / Harlington is determined by Hillingdon Council under its own Local Plan policies for Hayes / Harlington. |
| UB4 | Hayes / Yeading | 1930s semi-detached, post-war estates | UB4 covers Hayes / Yeading only; Hillingdon Council handles the drawing package. |
| UB7 | West Drayton / Sipson / Harmondsworth | 1930s semi-detached, post-war | UB7 covers West Drayton / Sipson / Harmondsworth only; Hillingdon Council handles the drawing package. |
Roof pitch, wall build-up and plot depth change every few Hillingdon streets, and each one changes what a drawing package can achieve at that address.
Conservation areas covering Hillingdon: Hillingdon Council runs 29, and Harefield, Ickenham, Uxbridge are the ones Hillingdon owners meet most. A drawing package inside a Hillingdon conservation area loses permitted development, so the Hillingdon submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Uxbridge a drawing package is judged on the street elevation first.
No blanket Article 4 over Hillingdon: Hillingdon Council has not withdrawn permitted development across Hillingdon, so a drawing package outside a Hillingdon conservation area usually keeps it. The £274 Lawful Development Certificate is still the document a HA4 owner wants on file.
The building fabric around Hillingdon: 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 Hillingdon is scoped against that stock first.
Sources for this Hillingdon 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.
