31 The Avenue Radlett Hertfordshire WD7 7DQ
Approved on 9 March 2026
Council decision: Grant PermissionDelegated (officer decision)4 conditions
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
Demolition of existing single storey rear extension and construction of part single, part two storey rear extension; extension to habitable space at loft level with 2x rear dormers and removal of 1x chimney stack; conversion of garage with replacement of existing garage door by windows and new concealed secondary front entrance; removal and replacement of existing render and replacement windows throughout; new front boundary wall with brick piers, pedestrian entrance gate and 2x vehicular entrance gates; alterations and extension to rear terrace with erection of 2x replacement timber sheds.
- Received
- 5 January 2026
- Decision level
- Delegated (officer decision)
- Public comments
- 4
- Council
- Hertsmere Borough Council
- Ward
- Aldenham East
- Agent
- Smith & Newton Architects Ltd
- ReceivedReceived5 Jan
- ValidatedValidated13 Jan
- Consult.Consultation11 Feb
- TargetTarget Date10 Mar
- DecidedDecided9 Mar
Decided in 55 days (council typically 56)
About this application
This is a full planning application for demolition at 31 The Avenue Radlett Hertfordshire WD7 7DQ. Hertsmere has handled 1,861 applications of this type. This one was decided in 63 days, 7 days longer than Hertsmere's typical decision time. There has been 1 other application at this address. In the past year there have been 172 applications across Aldenham East. 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.Planning something similar? See what gets approved on your street
Application details
- Postcode
- WD7 7DQ
- Application type
- Householder Application
- Scale / size
- Small
- Parish
- Aldenham Parish
Planning application dates
- Date validated
- 13 January 2026
- Consultation expiry
- 11 February 2026
- Consultation start
- 10 March 2026
- Consultation end
- 11 February 2026
- Neighbour consultation start
- 15 January 2026
- Neighbour consultation end
- 5 February 2026
- Last date for comments
- 11 February 2026
- Target decision date
- 10 March 2026
- Decision issued
- 10 March 2026
- Permission expires
- 10 March 2029
Applicant and agent
- Agent
- Smith & Newton Architects Ltd
- Architect profile
- SMITH & NEWTON ARCHITECTS LTD
- Agent address
- 9 Shepherd's Lane Homerton London E9 6JJ
Planning decision
- Statutory period
- 56 days
Additional information
- Planning Portal ID
- PP-14585504
- Documents
- 33
- Constraints
- 9
Site constraints
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.
Associated applications
- 202626 Aug
Variation of condition 2 (plans) to allow for replacement of approved drawings following grant of planning…
ApprovedVariation of conditions (s73)26/1228/VOC - 20265 Jan
Demolition of existing single storey rear extension and construction of part single, part two storey rear…
This applicationApprovedFull26/0006/HSE
Source: Hertsmere
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Around this site
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For applicants and trades
For the applicant
Need a contaminated land assessment? Contamination & geo-environmental consultants near this site
Condition 04 on the decision asks for this.
- 13.0 miUxbridge
- 13.9 miBrentford
- 15.6 miLondon
Nearest first, within 25 miles of the site. Every firm is listed free.
Contractors near this project
Find contractors for extensions near this site- Solid Renewables LimitedPlumber & Heating Engineer0.3 mi
- VaRa Garden DesignProfessional Garden Designer0.4 mi
- B & C Security Services LLP0.7 mi
- Blanco UKKitchen & Bathroom1.0 mi
Planning something similar?
See what the council approved and refused for two-storey and first-floor extensions on your street. Pick your home and get the evidence before you pay for drawings.