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Pending26/03051/FULLSubmitted 4 months agoConservatory

17 Belgrave Square Westminster SW1X 8PG

Removal of Condition 10 of listed building dated 18th August 2025 (RN:25/03417/LBC) for: Replacement and erection of five air condenser units within acoustic enclosure on main roof of 7 Belgrave Square, two new air condenser units within two separate enclosures on rear ground floor terrace to 17 Belgrave Mews West and internal air conditioning units. Internal and external alterations, including alteration to conservatory, internal layout changes, installation of underfloor heating system, and removal and replacement of floorboards, doors and MEP services namely, to remove the requirement to carry out a paint analysis of the principal rooms.

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Progress

Submitted
8 May 2026
— completed
Validated
8 May 2026
— completed
Consultation
—
— not yet reached
Target date
3 Jul 2026 (target)
— not yet reached
Decided
—
— not yet reached

Application details

Reference
26/03051/FULL
Local authority
Westminster
Postcode
SW1X 8PG
Ward
KBW_22
Application type
All Other
Property type
House

Key dates

Submitted
8 May 2026
Validated
8 May 2026
Target decision
3 Jul 2026

Estimated project value

£14k–£41k

Typical UK cost for this job type, at inner London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: trade estimate.

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.

Contains HM Land Registry data © Crown copyright and database right 2024. 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.

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