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Permitted26/01933/NMASubmitted last monthRear extension

Grenville St Marys Hill Ascot SL5 9AP

Non material amendment to planning permission 25/03261/FULL for a reduction in the width and height of the side extension, increase in depth of side and rear extension and alterations to existing and proposed fenestration.

Find on council portalDocuments (10)

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Progress

Submitted
5 Aug 2026
— completed
Validated
10 Aug 2026
— completed
Consultation
— completed
Target date
6 Sept 2026
— completed
Decided
2 Sept 2026
— completed

Application details

Reference
26/01933/NMA
Local authority
Windsor
Postcode
SL5 9AP
Ward
Ascot & Sunninghill
Application type
Amendment
Property type
House

Key dates

Submitted
5 Aug 2026
Validated
10 Aug 2026
Target decision
6 Sept 2026
Decided
2 Sept 2026

10 documents · 0 comments · 0 constraints

Estimated project value

£35k–£63k

Typical UK cost for this job type, at South East rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: MyJobQuote / Checkatrade 2026, ~20m² at £1,800-£3,000/m².

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.

Homes here go for about £1,089,000 — the median of the last 7 market sales in SL5 9AP, £903,100 to £1,700,000.

Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.

Planning constraints

No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.

Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.

Recorded changes

  • 7 Sept 2026: Approved
  • 7 Sept 2026: app_state changed from Undecided to Permitted
  • 7 Sept 2026: Decision dated 2026-09-02

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