Unknown26/HOUSE/2001Submitted last weekLoft conversion

23 Thornton Road, Wimbledon, Merton, SW19 4NG

APPLICATION FOR REPLACEMENT OF THE EXISTING REAR BASEMENT (KITCHEN) WINDOW WITH A SET OF DOUBLE DOORS, CREATE A SET OF STEPS LEADING UP FROM THE BASEMENT PATIO TO THE GROUND LEVEL PATIO AND ERECTION OF A REAR FLAT ROOF DORMER EXTENSION, INCLUDING ALTERATIONS TO THE INTERNAL LAYOUT .

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Progress

Submitted

9 Sept 2026

— completed

Validated

—

— not yet reached

Consultation

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— not yet reached

Target date

—

— not yet reached

Decided

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— not yet reached

Application details

Reference: 26/HOUSE/2001
Local authority: Merton
Property type: Flat

Key dates

Submitted: 9 Sept 2026

Estimated project value

£28k–£75k

Typical UK cost for this job type, at UK average rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 loft conversion cost guide.

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.