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35 Sandpit Road Welwyn Garden City AL7 3TW

6/2026/0584/HOUSEHOUSEHOLDER APPLICATIONRefused
Householder

Refused on 29 May 2026

Delegated (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

Loft conversion with rear dormer

Received
1 April 2026
Decision level
Delegated (officer decision)
Ward
Peartree
  1. Received1 Apr
  2. Validated9 Apr
  3. Consult.21 May
  4. Target
  5. Decided29 May

Decided in 50 days (council typically 56)

About this application

This is a full planning application for a loft conversion at 35 Sandpit Road Welwyn Garden City AL7 3TW. Welwyn Hatfield has handled 2,195 applications of this type. This one was decided in 58 days. The site is in the Peartree conservation area. There has been 1 other application at this address. In the past year there have been 64 applications across Peartree. We hold 714 applications in total for the AL7 postcode area.

83% of full applications at Welwyn Hatfield 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

Why it was refused

  1. The proposed dormer by reason of its scale, position and design would detract from the traditional duo-pitched roof form and the largely unadorned, uniform roofscape of the parent building, terrace and wider area. The proposed development would therefore fail to respect the character of the dwelling or preserve or enhance the character and appearance of the Peartree Conservation Area and would be contrary to Policies SP9, SP15 and SADM15 of the Welwyn Hatfield Local Plan, the Welwyn Hatfield Supplementary Design Guidance 2005, Section 72 of the Planning (Listed Buildings and Conservation Areas) Act 1990 and the National Planning Policy Framework.
  2. Plan Number Revision Details Received Date D10 Block Plan 1 April 2026 D11 Location Plan 1 April 2026 D01 Existing Ground Floor Plan 1 April 2026 D02 Existing First Floor Plan 1 April 2026 D04 Proposed Loft Plan 1 April 2026 D03 Proposed First Floor Plan 1 April 2026 D06 Proposed Roof Plan 1 April 2026 D08 Proposed Elevations 1 April 2026 D05 Existing Roof Plan 1 April 2026 D09 Proposed Section AA 1 April 2026 D07 Existing Elevations 1 April 2026 1.

From the council's decision notice.

Application details

Postcode
AL7 3TW
Application type
HOUSEHOLDER APPLICATION

Planning application dates

Date validated
9 April 2026
Consultation expiry
21 May 2026
Consultation end
21 May 2026

Applicant and agent

Agent address
33 East Barnet Road New Barnet EN4 8RN

Publicity

Advertisement expiry
21 May 2026

Additional information

UPRN
100080984476

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 and tree preservation orders. Ask the council if these matter.

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

  1. 2026
    1 Apr

    Loft conversion with rear dormer

    This applicationRefusedFull6/2026/0584/HOUSE
  2. 2026
    31 Mar

    Proposed loft conversion

    WithdrawnESTATE MANAGEMENTFiled alongside6/2026/0579/EM

Source: Welwyn Hatfield

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