18 Ambleside Avenue Telscombe Cliffs East Sussex BN10 7LS Data via plota.co.uk
Proposal
Prior Notification under The Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) - Schedule 2, Part 1, Class A for a single-storey rear extension to measure 6m total length, 2.8m eaves height and 3m total height Data via plota.co.uk
Application progress
Approved on 8 Jun 2026 · Delegated Decision · Last checked 5 Jul 2026
Site constraints 4
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 2
Last sold for £312,500 in April 2018. Semi-detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in January 2018, 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
- Lewes
- Application type
- GPD - Extensions
- Postcode
- BN10 7LS
- Received
- 8 May 2026
- Validated
- 8 May 2026
- Ward
- East Saltdean & Telscombe Cliffs
- Parish
- Telscombe
- Case officer
- Show
- Target decision
- 19 Jun 2026
- Decision
- Prior Approval Not required
- Decision date
- 8 Jun 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Light Design Services
How this decision compares
Decided in 31 days from validation, 21 days faster than Lewes's median of 52 for extensions. Approved, as 94% of extensions here are.
Plota live figures for extensions decided by Lewes in the last twelve months, from validation. Lewes decision record →
Consultation & key dates
- Alt. reference
- PP-14906143
- Planning Portal ref
- PP-14906143
- Neighbours
- 15 May 2026
- Consultation
- 15 May 2026
- Comments by
- 5 Jun 2026
- Statutory expiry
- 19 Jun 2026
- Env. assessment
- No
Historical activity at this location
15 nearby applications on record - archival context, not part of the live application.
Nearby activity
Lewes ranks #126 out of 296 councils for householder decision speed. Only 25% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Householder applications are slightly more likely to be approved here (94%) 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.
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.
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18 Ambleside Avenue Telscombe Cliffs East Sussex BN10 7LS
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