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266 Mays Lane Barnet EN5 2QG

25/4380/PNHPrior Notification (Householder)Refused
Householder

Refused on 15 December 2025

Council decision: Prior Approval Required and RefusedDelegated (officer decision)

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.15 metres and eaves height of 2.30 metres, following demolition of the existing extension.

Received
3 November 2025
Decision level
Delegated (officer decision)
Public comments
1
Ward
Underhill
  1. Received3 Nov
  2. Validated3 Nov
  3. Consult.26 Nov
  4. Target15 Dec
  5. Decided15 Dec

Decided in 42 days (council typically 56)

About this application

This is an outline application for demolition at 266 Mays Lane Barnet EN5 2QG. Barnet has handled 2,167 applications of this type. This one was decided in 42 days, 2 weeks quicker than Barnet's typical decision time. There have been 2 other applications at this address. In the past year there have been 71 applications across Underhill. We hold 3,745 applications in total for the EN5 postcode area.

75% of outline applications at London Borough of Barnet were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
EN5 2QG
Application type
Prior Notification (Householder)
Scale / size
Small

Planning application dates

Date validated
3 November 2025
Consultation expiry
26 November 2025
Neighbour consultation start
19 December 2025
Neighbour consultation end
26 November 2025
Target decision date
15 December 2025

Applicant and agent

Agent address
Robin Hill Common Road Ightham Sevenoaks Kent TN15 9DY

Planning decision

Statutory period
42 days

Additional information

Planning Portal ID
PP-14458611
Documents
34

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Article 4 direction: Article 4 Small Houses in Multiple Occupation (HMO) Area 1
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (23)

flood storage areas, conservation areas, listed buildings, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Source: Barnet

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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