Architectural drawings in HA6

Which HA6 postcodes does this drawing package service cover?

Every HA6 postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. HA6 fees below are the statutory England rates for 2026, not drawing package estimates.

How does a drawing package differ street by street across HA6?

Roof pitch, wall build-up and plot depth change every few HA6 streets, and each one changes what a drawing package can achieve at that address.

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

How designation changes a HA6 (Northwood) drawing package: Hillingdon Council maintains 29 conservation areas, including Uxbridge, Ruislip Village, Northwood. Inside any of them a HA6 (Northwood) drawing 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. Harefield sets the tone for HA6 (Northwood) casework.

No blanket Article 4 over HA6 (Northwood): Hillingdon Council has not withdrawn permitted development across HA6 (Northwood), so a drawing package outside a HA6 (Northwood) conservation area usually keeps it. The £274 Lawful Development Certificate is still the document a HA6 owner wants on file.

The building fabric around HA6 (Northwood): 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 HA6 (Northwood) 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.

Who decides a drawing package on the edge of HA6?

• Harrow — cross the HA6 (Northwood) 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 HA6 (Northwood) 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 HA6 (Northwood) is decided by Ealing Council instead. Ealing runs 30 conservation areas across W3 and its neighbours, which is why architectural drawings priced for HA6 (Northwood) are re-checked against Ealing policy whenever the HA6 (Northwood) address sits on that edge.
• Hounslow — the Hounslow boundary runs against Hillingdon, so a drawing package a street from HA6 (Northwood) is decided by Hounslow Council instead. Hounslow runs 30 conservation areas across W3 and its neighbours, which is why architectural drawings priced for HA6 (Northwood) are re-checked against Hounslow policy whenever the HA6 (Northwood) address sits on that edge.

Sources for this HA6 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.