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15 St Martins Close Winchester Hampshire SO23 0HD

26/00575/LDPLawful Development Certificate-ProposedApproved
Outline / PiP

Approved on 14 May 2026

Council decision: Lawful Development Certificate - Permit

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

Single Storey Rear Extension Loft Conversion Including Rooflights

Received
18 March 2026
Ward
ST BARTHOLOMEW WARD
  1. Received18 Mar
  2. Validated18 Mar
  3. Consult.20 Apr
  4. Target20 Apr
  5. Decided14 May

Decided in 57 days (council typically 56)

About this application

This is an outline application for a single storey rear extension at 15 St Martins Close Winchester Hampshire SO23 0HD. Winchester has handled 262 applications of this type. This one was decided in 57 days. The site is in 1 listed building nearby. There are no previous applications recorded at this address. In the past year there have been 57 applications across ST BARTHOLOMEW WARD. We hold 617 applications in total for the SO23 postcode area.

91% of outline applications at Winchester City 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.See what's approved near your address

Application details

Postcode
SO23 0HD
Application type
Lawful Development Certificate-Proposed
Scale / size
Small
Parish
Winchester Town

Planning application dates

Date validated
18 March 2026
Last date for comments
20 April 2026
Target decision date
20 April 2026

Applicant and agent

Agent
CMCdesign
Agent address
The Studio 23 Malibres Road Chandlers Ford SO53 5DS

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-14785682
Documents
9
Constraints
28

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Nutrient neutrality catchment: River Itchen SACApplies to new homes and overnight accommodation · +1 more
  • 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 (21)

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, 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: Winchester

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