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173 St Leonards Road Windsor SL4 3DR

23/03194/CPDCert of Lawfulness of Proposed DevApproved
Outline / PiP

Approved on 2 February 2024

Council decision: Permitted DevelopmentDelegated (officer decision)

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

Certificate of lawfulness to determine whether the proposed L shaped rear dormer with Juliet balcony to create a loft conversion is lawful.

Received
27 December 2023
Decision level
Delegated (officer decision)
Ward
Old Windsor
  1. Received27 Dec
  2. Validated5 Jan
  3. Consult.
  4. Target1 Mar
  5. Decided2 Feb

Decided in 28 days (council typically 56)

About this application

This is an outline application for a loft conversion at 173 St Leonards Road Windsor SL4 3DR. Windsor has handled 644 applications of this type. This one was decided in 37 days, 3 weeks quicker than Windsor's typical decision time. The site is in a conservation area. There are no previous applications recorded at this address. In the past year there have been 30 applications across Old Windsor. We hold 1,028 applications in total for the SL4 postcode area.

67% of outline applications at Royal Borough of Windsor and Maidenhead 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
SL4 3DR
Application type
Cert of Lawfulness of Proposed Dev
Scale / size
Small
Parish
Windsor Unparished

Planning application dates

Date validated
5 January 2024
Target decision date
1 March 2024

Applicant and agent

Agent address
Aspects Architectural Services Ltd St Stephens House Arthur Road Windsor SL4 1RU

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-12697509
Documents
7

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: conservation areas, Article 4 directions and tree preservation orders. Ask the council if these matter.

Also checked, none recorded (21)

flood storage 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: Windsor

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