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3 Tykes Terrace Station Road Radlett Hertfordshire WD7 8FD

26/0363/HSEHouseholder ApplicationApproved
Householder

Approved on 12 May 2026

Council decision: Grant PermissionDelegated (officer decision)3 conditions

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

Conversion of loft to habitable space to include rear dormer.

Received
19 March 2026
Decision level
Delegated (officer decision)
Public comments
2
Ward
Aldenham West
Agent
Koha Architects Ltd
  1. Received19 Mar
  2. Validated19 Mar
  3. Consult.14 Apr
  4. Target14 May
  5. Decided12 May

Decided in 54 days (council typically 56)

About this application

This is a full planning application for a dormer extension at 3 Tykes Terrace Station Road Radlett Hertfordshire WD7 8FD. Hertsmere has handled 1,861 applications of this type. This one was decided in 54 days. The site is in the Radlett North conservation area. There are no previous applications recorded 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.

90% of full 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

Application details

Postcode
WD7 8FD
Application type
Householder Application
Scale / size
Small
Parish
Aldenham Parish

Planning application dates

Date validated
19 March 2026
Consultation expiry
30 April 2026
Consultation start
13 May 2026
Consultation end
14 April 2026
Neighbour consultation start
24 March 2026
Neighbour consultation end
16 April 2026
Last date for comments
30 April 2026
Target decision date
14 May 2026
Decision issued
13 May 2026
Permission expires
13 May 2029

Applicant and agent

Agent
Koha Architects Ltd
Architect profile
KOHA ARCHITECTS LTD
Agent address
Tremough Innovation Centre Penryn TR10 9TA

Planning decision

Statutory period
56 days

Publicity

Last advertised
9 April 2026
Advertisement expiry
30 April 2026

Additional information

Planning Portal ID
PP-14746229
Documents
14
Constraints
18

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Radlett North
  • Brownfield land register: Land & Garages rear of 38-40 Watling Street, Radlett, WD7 7NNRegister site at or near this address
  • 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 (20)

flood storage 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 and heritage coasts.

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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