31 Highfield Avenue Harpenden Hertfordshire Al5 5Ub
Certificate of Lawfulness ( Proposed) - Proposed rear single-storey extension, side single-storey extension and removal of rear chimney stack
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Progress
Application details
- Reference
- 5/2026/1558
- Local authority
- St Albans
- Postcode
- AL5 5UB
- Ward
- Harpenden West
- Application type
- Outline
- Property type
- House
Key dates
- Submitted
- 21 Aug 2026
- Validated
- 21 Aug 2026
- Target decision
- 11 Sept 2026
- Decided
- 28 Aug 2026
8 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. 4 recent sales are listed below.
- 31 HIGHFIELD AVENUE, HARPENDEN, AL5 5UBSemi-detached · £920,0009 months ago14 Nov 2025
- 41 HIGHFIELD AVENUE, HARPENDEN, AL5 5UBSemi-detached · £1,200,00015 months ago12 Jun 2025
- 27 HIGHFIELD AVENUE, HARPENDEN, AL5 5UBSemi-detached · £955,00017 months ago14 Mar 2025
- 17 HIGHFIELD AVENUE, HARPENDEN, AL5 5UBSemi-detached · £1,226,00022 months ago18 Oct 2024
- 45 HIGHFIELD AVENUE, HARPENDEN, AL5 5UBSemi-detached · £1,275,0002 years ago14 Dec 2023
- 23 HIGHFIELD AVENUE, HARPENDEN, AL5 5UBSemi-detached · £950,0002 years ago26 Oct 2023
- 25 HIGHFIELD AVENUE, HARPENDEN, AL5 5UBSemi-detached · £780,0005 years ago26 Oct 2020
- 29 HIGHFIELD AVENUE, HARPENDEN, AL5 5UBSemi-detached · £855,0006 years ago9 Sept 2020
Homes here go for about £952,500 — the median of the last 8 market sales in AL5 5UB, £780,000 to £1,275,000.
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.
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