10 Park Avenue Thornaby Stockton-on-Tees TS17 7JN
Certificate of lawfulness for the erection of a dormer extension to the rear/side roof. (loft conversion)
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Progress
Application details
- Reference
- 26/1538/CPL
- Local authority
- Stockton-on-Tees
- Postcode
- TS17 7JN
- Ward
- Mandale & Victoria
- Application type
- Outline
- Property type
- House
Key dates
- Submitted
- 10 Aug 2026
- Validated
- 12 Aug 2026
- Target decision
- 7 Oct 2026
- Decided
- 9 Oct 2026
11 documents · 0 comments · 1 constraints
Estimated project value
£28k–£75k
Typical UK cost for this job type, at UK average rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 loft conversion cost guide.
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 3 recent sales are listed below.
- 8 PARK AVENUE, STOCKTON-ON-TEES, TS17 7JNSemi-detached · £102,00014 months ago22 Aug 2025
- 24 PARK AVENUE, STOCKTON-ON-TEES, TS17 7JNSemi-detached · £130,00016 months ago2 Jun 2025
- 41 PARK AVENUE, STOCKTON-ON-TEES, TS17 7JNTerraced · £132,50019 months ago28 Feb 2025
- 29 PARK AVENUE, STOCKTON-ON-TEES, TS17 7JNTerraced · £106,0002 years ago4 Oct 2024
- 32 PARK AVENUE, STOCKTON-ON-TEES, TS17 7JNSemi-detached · £112,0004 years ago29 Oct 2021
- 12 PARK AVENUE, STOCKTON-ON-TEES, TS17 7JNSemi-detached · £114,0005 years ago9 Sept 2021
- 15 PARK AVENUE, STOCKTON-ON-TEES, TS17 7JNTerraced · £95,0005 years ago18 Jun 2021
- 5 PARK AVENUE, STOCKTON-ON-TEES, TS17 7JNTerraced · £73,5005 years ago11 May 2021
Homes here go for about £109,000 — the median of the last 8 market sales in TS17 7JN, £73,500 to £132,500.
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
- 24 Oct 2026: Approved
- 24 Oct 2026: app_state changed from Undecided to Permitted
- 24 Oct 2026: Decision dated 2026-10-09
- 24 Oct 2026: Now a rear extension (was a side extension)
Nearby applications
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- 108 Acklam Road Stockton-on-Tees TS17 7JRPermitted125 yd
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- Land Adjacent To 11 Derby Close ThornabyPermitted176 yd
- 9 Imperial Avenue Thornaby Stockton-On-Tees TS17 7JGPermitted180 yd