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61 Gills Hill Lane Radlett Hertfordshire WD7 8DG

26/1091/PD42PD- Prior Approval 42 day (Hsehold ext)Refused
Outline / PiP

Refused on 15 September 2026

Council decision: PD42 - Prior Approval Refused1 reason for refusal

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. Depth: 4m, Height: 2.86m, Eaves: 2.62m.

Received
4 August 2026
Public comments
1 · last counted 4 November 2026
Ward
Aldenham West
Agent
Divine Design Consultants Ltd
  1. Received4 Aug
  2. Validated4 Aug
  3. Consult.3 Sep
  4. Target15 Sep
  5. Decided15 Sep

Decided in 42 days (council typically 56)

About this application

This is an outline application for a single storey rear extension at 61 Gills Hill Lane Radlett Hertfordshire WD7 8DG. Hertsmere has handled 952 applications of this type. This one was decided in 42 days, 2 weeks quicker than Hertsmere's typical decision time. There have been 3 other applications at this address. In the past year there have been 152 applications across Aldenham West. We hold 1,025 applications in total for the WD7 postcode area.

81% of outline applications at Hertsmere Borough Council 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.See what's approved near your address

Why it was refused

  1. The proposed development fails to satisfy the criteria set out in Schedule 2, Part 1, Class A of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended). Specifically, the development breaches Paragraph A.1(f)(i) and (ii), Paragraph A.1(g), and Paragraph A.1(h)(i) regarding rear projection and height limits. Furthermore, it breaches Paragraph A.1(ja), because the total enlargement consisting of the proposed rear extension joined directly to the existing two-storey side and rear extension exceeds the permissible limits set out under Class A. The cumulative structure also breaches side extension constraints under Paragraph A.1(j)(i), (ii), and (iii) in terms of height, storeys, and width. Accordingly, the proposal does not meet permitted development requirements and prior approval must be refused.

From the council's decision notice.

Application details

Postcode
WD7 8DG
Application type
PD- Prior Approval 42 day (Hsehold ext)
Scale / size
Small
Parish
Aldenham Parish

Planning application dates

Date validated
4 August 2026
Consultation expiry
4 September 2026
Consultation start
13 August 2026
Consultation end
3 September 2026
Neighbour consultation start
13 August 2026
Neighbour consultation end
4 September 2026
Last date for comments
4 September 2026
Target decision date
15 September 2026

Applicant and agent

Applicant
Private applicant
Agent
Divine Design Consultants Ltd
Agent address
49 Queens Crescent Marshalswick St Albans AL4 9QQ

Planning decision

Case officer
Monika Vistartaite
Statutory period
42 days

Additional information

Planning Portal ID
PP-15034532
Documents
12
Constraints
10

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 1: Low probability (rivers and sea)

Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (22)

flood storage areas, conservation areas, listed buildings, 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: Hertsmere

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