
Planning and building regulation drawings in Monken Hadley (EN5)
Monken Hadley is a village gathered around Hadley Green and the common. The housing is mostly Georgian and early Victorian, with some earlier fabric and later Victorian villas, and many of the houses are listed. Brick and render frontages, sash windows and long rear gardens are the common thread. Hadley Green Road, Hadley Common, Dury Road and Bakers Hill are among the district's roads.
- MCIAT chartered technologists
- London Borough of Barnet granted 82% of 1439 householder applications
- Drawings in about 7 days
With many listed houses and a protected village setting, a rear extension or loft here is a more delicate exercise than on a suburban street. The Monken Hadley Conservation Area protects the village setting around the green, and the Wood Street Conservation Area also lies in the district. Barnet's Article 4 direction for Monken Hadley takes away householder permitted development over many of the houses around the green and common, so even modest external works can need planning permission. A new window of a different design, a change of roof covering or a porch can be a planning question, not a quick job.
The long gardens are the other side of the coin. They give a rear extension room to be well proportioned, but the common and surrounding Green Belt limit how far an extension can reach on plots that back onto open land. We start every project here by pinning down the listing, the exact conservation boundary and whether the direction reaches the house, then draw to suit what can actually be consented.
Planning in Monken Hadley: what to know before you apply
Barnet's Monken Hadley Article 4 direction withdraws householder permitted development over many properties around the green and common, so even small external changes to those houses can need planning permission. Independently, conservation-area land removes permitted development for side extensions, roof enlargements and rear extensions of more than one storey. Listed houses also need listed building consent for works affecting their character, internal works included. Green Belt policy bears on extensions at the edge of the common. Barnet also has HMO directions in parts of the borough, which matter only if three to six unrelated people would share. A planning application needs an ownership certificate or notice, not the freeholder's consent.
Applications are decided by London Borough of Barnet — its planning pages.
Does your Monken Hadley project need planning permission?
Monken Hadley (EN5) in numbers
What London Borough of Barnet has decided, and what EN5 is built of — the two facts that shape every job here.
Householder planning decisions — London Borough of Barnet
Monken Hadley (EN5) applications are decided by London Borough of Barnet; these are its published householder figures for the last four quarters.
| Householder applications decided2025 Q2 to 2026 Q1 | 1,439 |
|---|---|
| Granted | 1,183 |
| Refused | 256 |
| Grantedof 1439 decisions · England 90% | 82% |
| Decided within 8 weeksof 1175, excluding prior approvals | 97% |
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 Barnet
How the larger-home-extension route has fared with London Borough of Barnet, which decides EN5 notifications.
| Larger home extension prior approvals — not required2024 Q2 to 2026 Q1 | 364 |
|---|---|
| Prior approval granted | 30 |
| Prior approval refused | 210 |
| Grantedof 240 determined | 12% |
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 Barnet
Refusals in EN5 can be appealed to the Planning Inspectorate; this is London Borough of Barnet's householder appeal record.
| Householder appeals determined2021–2026 | 502 |
|---|---|
| Allowed | 248 |
| Allowedof 502 · England 36% | 49% |
Source: Planning Inspectorate appeals casework. Open Government Licence v3.0 Extracted 2026-09-22.
Conservation areas and Article 4 directions — London Borough of Barnet
Register counts for London Borough of Barnet. A count describes what the council has published, never a rank against another council.
| Conservation areas in the register16 dated, 1968–2011 | 16 |
|---|---|
| Article 4 directions in the register | 15 |
| Areas covered by an Article 4 direction | 48 |
Source: MHCLG Planning Data Platform. Open Government Licence v3.0 Extracted 2026-09-22.
What EN5 is built of
Residential building form across Monken Hadley (EN5), from 438 classified buildings — the fact that decides party walls, side returns and loft headroom before any policy does.
| Attached on more than one side | 25% |
|---|---|
| Attached on one side | 55% |
| Detached | 20% |
| Median building footprint | 73 m² |
| Addresses per buildingAbove about 2 means flats and maisonettes dominate | 1.99 |
| Buildings classified | 438 |
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 Monken Hadley 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 Barnet’s checklist and submit on your behalf.
- Council: 8-week targetHouseholder applications carry an 8-week statutory target. London Borough of Barnet decided 97% of 1175 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 EN5
Nearby postcode districts
Monken Hadley (EN5) — FAQs
Are most Monken Hadley houses listed?+
Can I extend into a long rear garden here?+
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