23 Wood End Hill Harpenden Hertfordshire AL5 3EZ Data via plota.co.uk

5/2026/0950 - HSE Approved

Proposal

Single storey front and rear extensions, first floor side extensions and associated internal alterations. Replacement roof covering, new first floor cladding, installation of new windows and doors and alterations to landscaping. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
14 May 2026
✓
Validated
15 May 2026
✓
Approved
28 Sept 2026

Approved on 28 Sept 2026 · Delegated · Last checked 13 Oct 2026

Site constraints 2

Also on the record
Radon affected area, class 3; Inside the Harpenden built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Sales history 1

Last sold for £1,170,000 in January 2025. Detached house, freehold.

24 January 2025£1,170,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area178 m² (1,916 sq ft)
Energy ratingD (60 out of 100), could reach C
PropertyDetached house, 7 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas, Electric storage heaters
WallsCavity wall, filled cavity

From the energy performance certificate lodged in June 2017, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Important details

Council
St Albans
Application type
HSE
Postcode
AL5 3EZ
Received
14 May 2026
Validated
15 May 2026
Ward
Harpenden North & Rural
Parish
HARPENDEN TOWN
Case officer
Show
Target decision
26 Sept 2026
Decision
DC3 Conditional Permission
Decision date
28 Sept 2026
Decision level
Delegated
Applicant
Show

How this decision compares

Decided in 136 days from validation, 59 days slower than St Albans's median of 77 for extensions. Approved, as 85% of extensions here are.

30%decided within 8 weeks
85%approved
717decided in the last year

Plota live figures for extensions decided by St Albans in the last twelve months, from validation. St Albans decision record →

Consultation & key dates

Alt. reference
321576PLN
Planning Portal ref
14934602
Comments by
26 Sept 2026
Site or press notice
10 Jun 2026
Statutory expiry
9 Jul 2026
St Albans
Planning Authority Score
1.1/10
Poor
#290 of 296 councils
Relevant to this application:
Householder decisions

St Albans is one of the slowest councils in England for householder decisions, ranking #285 out of 296. The council extends the time limit on 64% of applications - one of the highest rates in England. Expect your application to take longer than the standard deadline. Householder applications are slightly less likely to be approved here (88%) than the national average (90%).

Among the slowest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
St Albans decision statistics
Based on MHCLG data, the year to March 2026
87%
Overall approval rate
Above avg (87%) #180 of 296
88%
Householder approved
Below avg (90%) #226 of 296
29%
Decided in 8 weeks
Below avg (63%) #285 of 296
64%
Extended time limit
Above avg (41%) #278 of 296
74%
Minor dwellings approved
130 decided (1-9 homes)
61%
Major dwellings approved
18 decided (10+ homes)
77%
Change of use approved
26 decided
1,411
Total decisions
184 refused in the year to March 2026

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.