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Permitted20/03222/FULLSubmitted 6 years agoRear extension

Westminster

Partial demolition and reconstruction of enlarged rear extension with additional storey; formation of terraces at ground, fourth, fifth and sixth floor levels; excavation to extend existing basement level; installation of plant machinery; internal alterations including installation of new grand stair; and associated external alterations in connection with increase in office floorspace (Class B1).

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Progress

Submitted
22 Jun 2020
— completed
Validated
22 Jun 2020
— completed
Consultation
14 Oct 2020
— completed
Target date
21 Sept 2020
— completed
Decided
27 Oct 2020
— completed

Application details

Reference
20/03222/FULL
Local authority
Westminster
Ward
SJB_02
Application type
All Other
Property type
Commercial

Key dates

Submitted
22 Jun 2020
Validated
22 Jun 2020
Comments close
14 Oct 2020
Target decision
21 Sept 2020
Decided
27 Oct 2020

Estimated project value

£30k–£55k

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: MyJobQuote / Checkatrade 2026, ~20m² at £1,800-£3,000/m².

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.

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