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PermittedBH2026/00878Submitted 5 months agoLoft conversion

12 Tongdean Lane Brighton BN1 5JD

Certificate of Lawfulness for the proposed erection of a single-storey side extension, a hip-to-gable roof extension to the side, and an enlarged gable end to the rear. The development also includes the installation of rooflights, alterations to fenestration, the conversion of the existing garage into gym/leisure/home office, the demolition of an existing outbuilding and rear extension, and the installation of solar panels to the front elevation.

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Progress

Submitted
9 Apr 2026
— completed
Validated
9 Apr 2026
— completed
Consultation
— completed
Target date
— completed
Decided
5 Jun 2026
— completed

Application details

Reference
BH2026/00878
Local authority
Brighton
Postcode
BN1 5JD
Ward
Westdene And Hove Park
Application type
Lawful Development Certificate Proposed
Property type
Commercial

Key dates

Submitted
9 Apr 2026
Validated
9 Apr 2026
Decided
5 Jun 2026

Estimated project value

£32k–£87k

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: Checkatrade 2026 loft conversion cost guide.

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.

Homes here go for about £725,000 — the median of the last 7 market sales in BN1 5JD, £600,000 to £1,600,000.

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.

Nearby applications