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244 Marlborough Road Swindon SN3 1NX

S/LDP/26/0088Lawful Development Cert - ProposedRefused
Outline / PiP

Refused on 19 March 2026

Council decision: Permission RefusedDelegated (officer decision)3 reasons for refusal

Site boundary (council red line)

Proposal

Certificate of Lawfulness proposed for the erection of single story rear extension rendered to match existing building.

Received
22 January 2026
Decision level
Delegated (officer decision)
Ward
Chiseldon And Lawn
Agent
OCC Ltd
  1. Received22 Jan
  2. Validated22 Jan
  3. Consult.
  4. Target15 Mar
  5. Decided19 Mar

Decided in 56 days (council typically 49)

About this application

This is an outline application for a rear extension at 244 Marlborough Road Swindon SN3 1NX. Swindon has handled 390 applications of this type. This one was decided in 56 days, 7 days longer than Swindon's typical decision time. There are no previous applications recorded at this address. In the past year there have been 31 applications across Chiseldon And Lawn. We hold 747 applications in total for the SN3 postcode area.

88% of outline applications at Swindon 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.Planning something similar? See what gets approved on your street

Why it was refused

  1. The larger proposed single-storey rear extension for the dwelling at 244 Marlborough Road would measure around 3.4 metres in depth. As the dwelling at 244 Marlborough Road is not a detached dwelling, the larger proposed single-storey rear extension would exceed the applicable 3.0 metre depth limit beyond the rear wall of the original dwelling. Also, the proposed narrow rearward extension would be adjoined to the existing single- storey flat roof rear extension that projects around 3.4 metres in depth off the host dwelling’s original rear wall. As such the development as a whole (which includes both existing and proposed extensions) would not comply with criteria found in Paragraph A.1(f)(i) in Schedule 2, S/LDP/26/0088/JP Part 1, Class A of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).
  2. The proposed single-storey rear extension works are adjoined in continuous wrap- around extension works that includes the existing single-storey rear extension as well as the two-storey side extension as approved under planning application S/04/3386. When considered together, the combined side and rear extension with a two-storey element extends more than 3 metres beyond the original rear wall of the host dwelling. As such the proposed works would not comply with Class A.1(h)(i) in Schedule 2, Part 1, Class A of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).
  3. The combined existing and proposed extensions to the site’s original dwelling would have an element that is more than single-storey in height, and element that is greater than 4 metres in height, and an element that would be wider than half the width of the host dwelling when measured at its widest point. As such proposal would not comply with Class A.1(ja) in Schedule 2, Part 1, Class A of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).

From the council's decision notice.

Application details

Postcode
SN3 1NX
Application type
Lawful Development Cert - Proposed
Scale / size
Small
Parish
Central Swindon South

Planning application dates

Date validated
22 January 2026
Target decision date
15 March 2026

Applicant and agent

Agent
OCC Ltd
Agent address
OCC Ltd 3 Barrington Close Liden Swindon Wiltshire SN3 6HF United Kingdom

Planning decision

Statutory period
52 days

Additional information

Planning Portal ID
PP-14644591
Documents
10
Constraints
3

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.

Source: Swindon

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