Planning and building regulation drawings in Uxbridge (UB8)
Uxbridge is two places in one postcode. At its centre is a medieval timber-framed town core, and Windsor Street and the High Street still carry a notable run of timber-framed and Grade II listed buildings from the fifteenth to the eighteenth centuries, gathered around St Margaret's Church, with Georgian and Victorian frontages mixed in. Step away from that core and the town turns into Victorian and Edwardian terraces, then extensive interwar and postwar semis on the streets heading towards Hillingdon and Cowley. Cricketfield Road and Belmont Road are among the district's streets. The brief for a homeowner depends heavily on which of those two worlds the house belongs to.
- MCIAT chartered technologists
- London Borough of Hillingdon granted 90% of 1184 householder applications
- Drawings in about 7 days
In the suburban streets, many homes can begin from permitted development for a rear extension or a loft, so the design work is about fitting the house, the neighbours and the building lines Hillingdon expects extensions to follow. Where a project goes beyond those rights, a householder application follows, and the same attention to the street applies.
Within the historic centre, change is far more tightly managed. The Old Uxbridge / Windsor Street conservation area covers the town centre, and control is strict on shopfronts, materials and rooflines around the listed timber-framed buildings. Works next to or attached to a listed property are assessed closely, and the conservation area appears on Historic England's Heritage at Risk register with its condition recorded as poor, which is one reason the council looks carefully at anything within or beside it. Hillingdon's Article 4 directions on record, including the one on upward extensions, target added storeys and employment-to-residential change rather than standard rear and loft work, so for most UB8 houses the conservation area is the control that matters. A flat has no householder permitted development rights, so external changes that materially alter a flat's appearance start as a planning application.
Planning in Uxbridge: what to know before you apply
Hillingdon has no borough-wide Article 4 direction that restricts typical householder work. Its tests come from Green Belt policy in the west, conservation areas across the borough, and aircraft noise in the south. In UB8 the operative one is Old Uxbridge / Windsor Street, where roof enlargements, side extensions and rear extensions of more than one storey are not permitted development and shopfronts and materials are tightly controlled. Listed buildings need listed building consent for work that changes their character, whether inside or outside. Interwar semis elsewhere often keep their permitted development rights, though the council still expects consistent building lines when an application is made. We check each of these for your address before we draw.
Applications are decided by London Borough of Hillingdon — its planning pages.
Does your Uxbridge project need planning permission?
Uxbridge (UB8) in numbers
What London Borough of Hillingdon has decided, and what UB8 is built of — the two facts that shape every job here.
Householder planning decisions — London Borough of Hillingdon
Uxbridge (UB8) applications are decided by London Borough of Hillingdon; these are its published householder figures for the last four quarters.
| Householder applications decided2025 Q2 to 2026 Q1 | 1,184 |
|---|---|
| Granted | 1,068 |
| Refused | 116 |
| Grantedof 1184 decisions · England 90% | 90% |
| Decided within 8 weeksof 720, excluding prior approvals | 95% |
Source: Ministry of Housing, Communities and Local Government (PS2 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.
Permitted development prior approvals — London Borough of Hillingdon
How the larger-home-extension route has fared with London Borough of Hillingdon, which decides UB8 notifications.
| Larger home extension prior approvals — not required2024 Q2 to 2026 Q1 | 235 |
|---|---|
| Prior approval granted | 58 |
| Prior approval refused | 23 |
| Grantedof 81 determined | 72% |
Source: Ministry of Housing, Communities and Local Government (PS1 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.
Planning appeals — London Borough of Hillingdon
Refusals in UB8 can be appealed to the Planning Inspectorate; this is London Borough of Hillingdon's householder appeal record.
| Householder appeals determined2021–2026 | 430 |
|---|---|
| Allowed | 183 |
| Allowedof 430 · England 36% | 43% |
Source: Planning Inspectorate appeals casework. Open Government Licence v3.0 Extracted 2026-09-22.
Conservation areas and Article 4 directions — London Borough of Hillingdon
Register counts for London Borough of Hillingdon. A count describes what the council has published, never a rank against another council.
| Conservation areas in the register30 dated, 1970–2024 | 42 |
|---|---|
| Article 4 directions in the register | 150 |
| Areas covered by an Article 4 direction | 150 |
Source: MHCLG Planning Data Platform. Open Government Licence v3.0 Extracted 2026-09-22.
What UB8 is built of
Residential building form across Uxbridge (UB8), from 291 classified buildings — the fact that decides party walls, side returns and loft headroom before any policy does.
| Attached on more than one side | 32% |
|---|---|
| Attached on one side | 53% |
| Detached | 15% |
| Median building footprint | 61 m² |
| Addresses per buildingAbove about 2 means flats and maisonettes dominate | 1.65 |
| Buildings classified | 291 |
Source: Ordnance Survey National Geographic Database (derived statistics). Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Extracted 2026-09-22.
- Day 0Measured survey of your Uxbridge property — or your existing plans if you have them.
- About 7 daysDrawings issued for your approval. Free redraws until you are happy.
- SubmissionWe validate against London Borough of Hillingdon’s checklist and submit on your behalf.
- Council: 8-week targetHouseholder applications carry an 8-week statutory target. London Borough of Hillingdon decided 95% of 720 recent householder applications inside it.
Source: Ministry of Housing, Communities and Local Government (PS2 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.
Streets and neighbourhoods in UB8
Nearby postcode districts
Uxbridge (UB8) — FAQs
Do I need listed building consent on Windsor Street?+
Can I convert my Uxbridge garage into a room?+
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