21 Mills Spur Old Windsor Windsor SL4 2ND
Construction of a detached outbuilding forming a granny annexe ancillary to main dwelling.
Tracking, tags and letters are part of the paid plan. See what it costs. Searching and reading any record stays free.
Progress
Application details
- Reference
- 21/00348/FULL
- Local authority
- Windsor
- Postcode
- SL4 2ND
- Ward
- Old Windsor
- Application type
- Full
- Property type
- House
Key dates
- Submitted
- 8 Feb 2021
- Validated
- 8 Feb 2021
- Comments close
- 10 Mar 2021
- Target decision
- 5 Apr 2021
- Decided
- 19 Mar 2021
25 documents · 0 comments · 7 constraints
Estimated project value
£58k–£125k
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: trade estimate.
Recently sold nearby
New owners, recently moved in. First work on a house usually follows within months of completing. 4 recent sales are listed below.
- 31 MILLS SPUR, WINDSOR, SL4 2NDSemi-detached · £573,0004 months ago11 May 2026
- 6 MILLS SPUR, WINDSOR, SL4 2NDSemi-detached · £530,0004 months ago29 Apr 2026
- 19 MILLS SPUR, WINDSOR, SL4 2NDSemi-detached · £490,00011 months ago26 Sept 2025
- 26 MILLS SPUR, WINDSOR, SL4 2NDSemi-detached · £583,00023 months ago3 Oct 2024
- 32 MILLS SPUR, WINDSOR, SL4 2NDDetached · £700,0002 years ago8 Jan 2024
- 39 MILLS SPUR, WINDSOR, SL4 2NDDetached · £725,0003 years ago5 Jul 2023
- 18 MILLS SPUR, WINDSOR, SL4 2NDSemi-detached · £540,0004 years ago4 Mar 2022
- 11 MILLS SPUR, WINDSOR, SL4 2NDSemi-detached · £670,0004 years ago17 Sept 2021
Homes here go for about £578,000 — the median of the last 8 market sales in SL4 2ND, £490,000 to £725,000.
Contains HM Land Registry data © Crown copyright and database right 2026. 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.
Nearby applications
- 33 Mills Spur Old Windsor Windsor SL4 2NDPermitted59 yd
- 15 Warrington Spur Old Windsor Windsor SL4 2NFPending91 yd
- 39 Orchard Road Old Windsor Windsor SL4 2RZPermitted104 yd
- 52 Walpole Road Old Windsor Windsor SL4 2LZPermitted109 yd
- 9 Orchard Road Old Windsor Windsor SL4 2RZRefused129 yd
- 50 Ashbrook Road Old Windsor Windsor SL4 2NBPermitted160 yd