9 Whitethorn Lane Letchworth Garden City Hertfordshire SG6 2DN Data via plota.co.uk
Proposal
Single storey rear infill extension and alterations to fenestration following demolition of existing rear conservatory. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision around 2 Dec 2026, from North Hertfordshire's recent extensions.
Site constraints 1
Checked on 21 October 2026. Historic England, the Environment Agency, Natural England 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.
Every application in North Hertfordshire - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
- Council
- North Hertfordshire
- Application type
- Full Permission Householder
- Postcode
- SG6 2DN
- Received
- 14 Oct 2026
- Validated
- 14 Oct 2026
- Ward
- Letchworth South West Ward
- Parish
- Letchworth Garden City
- Case officer
- Show
- Target decision
- 9 Dec 2026
- Applicant
- Show
- Agent
- Show
Decision outlook
Day 14 of the 56-day target. North Hertfordshire usually decides extensions by day 49.
Plota live figures for extensions decided by North Hertfordshire in the last twelve months, from validation. North Hertfordshire decision record →
Public comments
No public comments yet.
2 neighbours consulted · Last counted 21 Oct 2026
Consultation & key dates
- Alt. reference
- PP-15227276
- Planning Portal ref
- PP-15227276
- Comments by
- 19 Nov 2026
Historical activity at this location
18 nearby applications on record - archival context, not part of the live application.
Nearby activity
North Hertfordshire ranks #128 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (95%) than the national average (90%).
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
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9 Whitethorn Lane Letchworth Garden City Hertfordshire SG6 2DN
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Comments are open until 19 Nov 2026