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27 Highfield Road Sandridge Hertfordshire AL4 9BX

5/2025/1414Refused

Refused on 27 October 2025

2 reasons for refusal

Approximate location: the centre of the postcode, not the exact property.

Proposal

Proposed new roof and loft extensions with ground floor extensions, alterations including amendment to in out drive and installation of solar panels at 27 Highfield Road Sandridge Hertfordshire AL4 9BX

  1. Received
  2. Validated
  3. Consult.
  4. Target
  5. Decided27 Oct

About this application

This is a planning application for an extension at 27 Highfield Road Sandridge Hertfordshire AL4 9BX. St Albans has handled 12,340 applications of this type. There have been 5 other applications at this address. In the past year there have been 108 applications across Sandridge & Wheathampstead. We hold 2,081 applications in total for the AL4 postcode area.

Why it was refused

  1. The application site is located in the Metropolitan Green Belt wherein there is strict control over the extension and alteration of dwellinghouses. The enlarged dwelling would result in a disproportionate addition over or above the size of the original building, and is considered to be inappropriate development which is by definition harmful. No very special circumstances have been demonstrated to outweigh the harm to the Green Belt by reason of inappropriateness and any other harm. The proposal is contrary to the aims of Policies 1 (Metropolitan Green Belt) and 13 (Extensions or Replacement of Dwellings in the Green Belt) of the St. Albans District Local Plan Review 1994 and the guidance set out in the National Planning Policy Framework 2024.
  2. The scale and design of the proposed extensions would result in a dwellinghouse of incongruous bulk in relation to the existing dwelling and the immediate street scene. As a result, the proposal would appear harmfully out of character with the area and would conflict with the aims of Policy 69 and Policy 72 of the St Albans Local Plan; Policy D4 of the Sandridge Parish Neighbourhood Plan and the relevant provisions of the NPPF 2024.

From the council's decision notice.

Application details

Postcode
AL4 9BX

Applicant and agent

Applicant
Private applicant

Appeal history

6003735
Dismissed
Type: Householder (HAS)Procedure: Written RepresentationsDecision: 4 June 2026Dev Type: Householder developmentsReason: refused
Green Belt

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations at the address point. Ones next to the site may also apply.

  • Green belt: St Albans
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (23)

flood storage areas, conservation areas, listed buildings, Article 4 directions, tree preservation orders, 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: St Albans

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