Kinsbourne House The Common Kinsbourne Green Harpenden Hertfordshire AL5 3PE Data via plota.co.uk
Proposal
Certificate of Lawfulness (proposed) - Removal of the existing hipped roof over the south projection and part demolished east wall. Build of a single storey rear extension between the south projection and the Drawing Room wall to the east. Construct a hip… Data via plota.co.uk
Application progress
Approved on 26 Aug 2026 · Delegated · Last checked 13 Oct 2026
Site constraints 7
Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. 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 £2,975,000 in March 2021. Detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
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Internal and external refurbishment works
Important details
- Council
- St Albans
- Application type
- CLP
- Postcode
- AL5 3PE
- Received
- 8 Jun 2026
- Validated
- 3 Jul 2026
- Ward
- Harpenden North & Rural
- Parish
- HARPENDEN RURAL
- Case officer
- Show
- Target decision
- 24 Jul 2026
- Decision
- Certificate of Lawfulness Approved
- Decision date
- 26 Aug 2026
- Decision level
- Delegated
- Applicant
- Show
- Agent
- Kay Pilsbury Thomas Architects (Kay Pilsbury Thomas Architects)
How this decision compares
Decided in 54 days from validation, 37 days faster than St Albans's median of 91 for demolitions. Approved, as 83% of demolitions here are.
Plota live figures for demolitions decided by St Albans in the last twelve months, from validation. St Albans decision record →
Consultation & key dates
- Alt. reference
- 322124PLN
- Planning Portal ref
- 14967452
- Comments by
- 24 Jul 2026
- Statutory expiry
- 27 Aug 2026
Historical activity at this location
30 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
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%).
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
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Kinsbourne House The Common Kinsbourne Green Harpenden Hertfordshire AL5 3PE
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