Architectural drawings in HA5

Which HA5 postcodes does this drawing package service cover?

Every HA5 postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. HA5 fees below are the statutory England rates for 2026, not drawing package estimates.

What changes about a drawing package in each part of HA5?

Roof pitch, wall build-up and plot depth change every few HA5 streets, and each one changes what a drawing package can achieve at that address.

• Inside HA5: Eastcote (HA5) — a drawing package in Eastcote starts from 1930s semi-detached, and Eastcote reads as 1930s semi-detached. in HA5. Hillingdon Council assesses Eastcote architectural drawings against its own Eastcote character guidance, and the location plan we draw for Eastcote references Eastcote Tube.
• Inside HA5: Pinner (HA5) — Tudor and 1930s village defines Pinner, where tudor fragments, edwardian villas, 1930s semi-detached set what a drawing package can do. Any Pinner drawing package is validated by Harrow Council, with Pinner High Street the usual Pinner reference point on the site plan.
• Bordering HA5: 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 HA5: Ruislip (HA4) — a drawing package in Ruislip starts from 1930s semi-detached, tudor cottages, and Ruislip reads as 1930s semi-detached, Tudor fragments. in HA4. Hillingdon Council assesses Ruislip architectural drawings against its own Ruislip character guidance, and the location plan we draw for Ruislip references Ruislip Lido.
• Bordering HA5: Northwood (HA6) — a drawing package in Northwood starts from 1930s detached, edwardian villas, and Northwood reads as 1930s detached and semi-detached. in HA6. Hillingdon Council assesses Northwood architectural drawings against its own Northwood character guidance, and the location plan we draw for Northwood references Northwood Hills.
• Bordering HA5: 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 HA5: West Drayton (UB7) — a drawing package in West Drayton starts from 1930s semi-detached, post-war, and West Drayton reads as 1930s semi-detached. in UB7. Hillingdon Council assesses West Drayton architectural drawings against its own West Drayton character guidance, and the location plan we draw for West Drayton references West Drayton station.
• Bordering HA5: Ickenham (UB10) — a drawing package in Ickenham starts from 1930s semi-detached, tudor fragments, and Ickenham reads as 1930s semi-detached, village conservation. in UB10. Hillingdon Council assesses Ickenham architectural drawings against its own Ickenham character guidance, and the location plan we draw for Ickenham references Ickenham Village.
• Bordering HA5: 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 HA5: Yiewsley (UB7) — 1930s semi-detached defines Yiewsley, where 1930s semi-detached set what a drawing package can do. Any Yiewsley drawing package is validated by Hillingdon Council, with Yiewsley High Street the usual Yiewsley reference point on the site plan.

What local planning policy applies to a drawing package in HA5?

HA5 (Pinner / Eastcote) conservation designations: there are 29 across Hillingdon Council, Uxbridge, Ruislip Village, Northwood among them. Designation costs a HA5 (Pinner / Eastcote) 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. Harefield is the HA5 (Pinner / Eastcote) designation that most often changes a drawing package design.

HA5 (Pinner / Eastcote) permitted development status: there is no borough-wide direction from Hillingdon Council, so a drawing package at a HA5 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a HA5 (Pinner / Eastcote) sale to argue it later.

What HA5 (Pinner / Eastcote) is built from: 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. That mix decides the drawing package route in HA5 (Pinner / Eastcote) more than the postcode does, and it is what a Hillingdon Council case officer reads first. A householder application costs £548 paid to Hillingdon Council direct, with 8 weeks to a decision once validated.

HA5 (Pinner / Eastcote) conservation designations: there are 29 across Harrow Council, Stanmore, Harrow Weald, Harrow on the Hill among them. Designation costs a HA5 (Pinner / Eastcote) 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. Stanmore is the HA5 (Pinner / Eastcote) designation that most often changes a drawing package design.

HA5 (Pinner / Eastcote) permitted development status: there is no borough-wide direction from Harrow Council, so a drawing package at a HA5 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a HA5 (Pinner / Eastcote) sale to argue it later.

What HA5 (Pinner / Eastcote) is built from: 1930s semi-detached dominates; Edwardian villas in Harrow on the Hill and Pinner; Metropolitan Green Belt in Stanmore and Harrow Weald; post-war flats around Harrow Central. Outer north-west London suburban; Harrow on the Hill has exceptionally strict heritage controls; rest of borough permissive. That mix decides the drawing package route in HA5 (Pinner / Eastcote) more than the postcode does, and it is what a Harrow Council case officer reads first. A householder application costs £548 paid to Harrow Council direct, with 8 weeks to a decision once validated.

What happens if a HA5 property sits on a boundary?

• Harrow — the Harrow boundary runs against Hillingdon, so a drawing package a street from HA5 (Pinner / Eastcote) is decided by Harrow Council instead. Harrow runs 29 conservation areas across HA1 and its neighbours, which is why architectural drawings priced for HA5 (Pinner / Eastcote) are re-checked against Harrow policy whenever the HA5 (Pinner / Eastcote) address sits on that edge.
• Ealing — the Ealing boundary runs against Hillingdon, so a drawing package a street from HA5 (Pinner / Eastcote) is decided by Ealing Council instead. Ealing runs 30 conservation areas across W3 and its neighbours, which is why architectural drawings priced for HA5 (Pinner / Eastcote) are re-checked against Ealing policy whenever the HA5 (Pinner / Eastcote) address sits on that edge.
• Hounslow — adjoining HA5 (Pinner / Eastcote), with 30 conservation areas centred on W3. A drawing package on the far side of the HA5 (Pinner / Eastcote) line is determined by Hounslow Council, so the HA5 (Pinner / Eastcote) quote for architectural drawings is checked against Hounslow guidance before it is issued.
• Hillingdon — cross the HA5 (Pinner / Eastcote) boundary and Hillingdon Council takes the drawing package instead, applying 29 conservation areas of its own around HA4. We re-price architectural drawings at the HA5 (Pinner / Eastcote) edge because Hillingdon policy and Harrow policy rarely align on drawing package depth.
• Barnet — the Barnet boundary runs against Harrow, so a drawing package a street from HA5 (Pinner / Eastcote) is decided by Barnet Council instead. Barnet runs 20 conservation areas across N2 and its neighbours, which is why architectural drawings priced for HA5 (Pinner / Eastcote) are re-checked against Barnet policy whenever the HA5 (Pinner / Eastcote) address sits on that edge.
• Brent — adjoining HA5 (Pinner / Eastcote), with 22 conservation areas centred on NW2. A drawing package on the far side of the HA5 (Pinner / Eastcote) line is determined by Brent Council, so the HA5 (Pinner / Eastcote) quote for architectural drawings is checked against Brent guidance before it is issued.

Sources for this HA5 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.