Planning and building regulation drawings in Hillingdon (UB10)
UB10 is built around two village centres, each with its own church, and a great deal of 1930s suburb filling the space between. Ickenham is gathered around St Giles Church, and Hillingdon Village sits around St John the Baptist, both with period cottages and Victorian houses that were there long before the surrounding estates. Out from those cores, substantial semi-detached and detached houses make up most of the wider postcode. Swakeleys Road, Austin's Lane, Royal Lane and Vine Lane are among the district's roads, and some of them run through or beside the protected cores, so knowing where a boundary falls matters.
- MCIAT chartered technologists
- London Borough of Hillingdon granted 90% of 1184 householder applications
- Drawings in about 7 days
For the 1930s stock, rear extensions and loft conversions with dormers are the obvious ways to add space. Many of these houses can start from permitted development, with the design adjusted to the conditions that apply to the property. Where an application is needed, frontages across the outer streets are uniform, so dormer proportions and changes to the front elevation are assessed for how they read against the rest of the road.
The two village conservation areas change that picture. Ickenham Village covers the historic centre around St Giles Church and has been extended to take in Austin's Lane as an area of special historic interest. Hillingdon Village protects the older core around St John the Baptist Church, along the Uxbridge Road and Royal Lane axis. Inside either, roof enlargements, side extensions and rear extensions of more than one storey are not permitted development. Hillingdon's Article 4 directions on record, including the one on upward extensions, do not blanket ordinary rear and loft work, so across UB10 it is these two conservation areas that most often alter a householder scheme. We check the boundary for every address before drawing.
Planning in Hillingdon: what to know before you apply
Hillingdon has no borough-wide Article 4 direction curbing typical householder permitted development, so the planning position depends on the individual property. In UB10 the Ickenham Village and Hillingdon Village conservation areas are what most often change a scheme, since they remove permitted development for several kinds of extension and tighten the council's scrutiny of materials and frontages. Outside them, the consistent 1930s building lines are what officers expect a new addition to respect. Works affecting the character of a listed building need listed building consent as well as any planning permission. A flat has no householder permitted development rights. We confirm the position for your address before the drawings begin.
Applications are decided by London Borough of Hillingdon — its planning pages.
Does your Hillingdon project need planning permission?
Hillingdon (UB10) in numbers
What London Borough of Hillingdon has decided, and what UB10 is built of — the two facts that shape every job here.
Householder planning decisions — London Borough of Hillingdon
Hillingdon (UB10) 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 UB10 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 UB10 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 UB10 is built of
Residential building form across Hillingdon (UB10), from 318 classified buildings — the fact that decides party walls, side returns and loft headroom before any policy does.
| Attached on more than one side | 28% |
|---|---|
| Attached on one side | 46% |
| Detached | 27% |
| Median building footprint | 71 m² |
| Addresses per buildingAbove about 2 means flats and maisonettes dominate | 1.13 |
| Buildings classified | 318 |
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 Hillingdon 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 UB10
Nearby postcode districts
Hillingdon (UB10) — FAQs
Is Austin's Lane protected?+
Can I add a loft dormer to a 1930s house in UB10?+
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