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131 Trowley Hill Road Flamstead St Albans Hertfordshire AL3 8DS

25/02761/OUTOutline Planning PermissionRefused
Outline / PiP

Refused on 29 May 2026

Council decision: Refuse Permission/ConsentDelegated (officer decision)2 reasons 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

Outline planning application for a two-storey detached dwelling

Received
7 November 2025
Decision level
Delegated (officer decision)
Public comments
11
Ward
Watling
Agent
Martin Ledger Associates
  1. Received7 Nov
  2. Validated7 Nov
  3. Consult.2 Dec
  4. Target
  5. Decided29 May

Decided in 203 days (council typically 49)

About this application

This is an outline application at 131 Trowley Hill Road Flamstead St Albans Hertfordshire AL3 8DS. Dacorum has handled 723 applications of this type. This one was decided in 203 days, 22 weeks longer than Dacorum's typical decision time. The site is in 1 listed building nearby. There have been 3 other applications at this address. In the past year there have been 75 applications across Watling. We hold 2,254 applications in total for the AL3 postcode area.

89% of outline applications at Dacorum Borough Council were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Why it was refused

  1. In the absence of a robust, site-specific flood risk assessment which clearly demonstrates that future occupiers would remain safe from current and future surface water flood risk, the application site is not considered to be suitable for the proposed development in flood risk terms. Furthermore, it is noted that the applicant has failed to demonstrate that the sequential test is either not applicable or would be satisfied. The development is therefore contrary to paragraph 175 of the NPPF (2024).
  2. The application does not provide sufficient information to satisfy the Council, as competent authority, that the proposed development will not adversely affect the integrity of the Chilterns Beechwoods Special Area of Conservation and there are no alternative solutions/mitigation or credible imperative reasons of overriding public interest why the proposed development should be permitted. In the absence of such information, and in the absence of an appropriate legal agreement to mitigate such adverse impact, the proposed development is contrary to Policy CS26 of the Core Strategy (2013), Paragraph 193 of the National Planning Policy Framework (2024) and the requirements of the Conservation of Habitats and Species Regulations (2017).

From the council's decision notice.

Application details

Postcode
AL3 8DS
Application type
Outline Planning Permission
Scale / size
Small
Parish
Flamstead Parish Council

Planning application dates

Date validated
7 November 2025
Consultation expiry
2 December 2025
Neighbour consultation start
11 November 2025
Neighbour consultation end
2 December 2025
Last date for comments
6 March 2026

Applicant and agent

Agent
Martin Ledger Associates
Agent address
7 Huntingdon Road Stevenage Hertfordshire SG1 2PA United Kingdom

Additional information

Planning Portal ID
PP-14452044
Documents
9
Constraints
12

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Not published by this council, so not checked: tree preservation orders. Ask the council if these matter.

Possibly incomplete for this council: Article 4 directions.

Also checked, none recorded (20)

flood storage areas, conservation areas, 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: Dacorum

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