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Permitted23/04782/FULLSubmitted 3 years agoHeat pump

18 Castellain Road Westminster W9 1EZ

Installation of one air source heat pump in rear garden within acoustic enclosure; external pipe to be moved from front to rear elevation.

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Map of the site

Progress

Submitted
20 Jul 2023
— completed
Validated
20 Jul 2023
— completed
Consultation
24 Aug 2023
— completed
Target date
14 Sept 2023
— completed
Decided
31 Oct 2023
— completed

Application details

Reference
23/04782/FULL
Local authority
Westminster
Postcode
W9 1EZ
Ward
LVW_22
Application type
All Other
Property type
House

Key dates

Submitted
20 Jul 2023
Validated
20 Jul 2023
Comments close
24 Aug 2023
Target decision
14 Sept 2023
Decided
31 Oct 2023

Estimated project value

£11k–£21k

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: Checkatrade / GreenMatch 2026, excluding Boiler Upgrade Scheme grant.

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 4 recent sales are listed below.

Homes here go for about £800,000 — the median of the last 8 market sales in W9 1EZ, £555,000 to £3,000,000.

Contains HM Land Registry data © Crown copyright and database right 2026. 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