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Permitted21/04925/NMASubmitted 5 years agoLoft conversion

Horseferry Road Westminster SW1P 2AL

Amendments to planning permission dated 07 April 2017 (RN:16/06616/FULL) for the: Construction of residential building on the site of Ergon House of nine storeys above ground to provide up to 108 residential units, provision of ground floor level retail unit (Class A1) and associated basement works, Deed of Variation to the S106 legal agreement for planning permission 13/09737/FULL in order to apply relevant provisions to this current application. (9 Millbank and The Gatehouse, Dean Bradley Street and demolition of Ergon House to be implemented under planning permission reference 13/09737/FULL). Namely, to allow alterations to mansard and roof level maintenance access, revised rooftop plant, services and elevation changes for servicing and the addition of Condition 32 to read: "The stair handrails to the approved roof access metalwork stairs must be collapsed when the stairs are not in use for maintenance purposes. Reason: To make sure that the appearance of the building is suitable and that it contributes to the character and appearance of this part of the Smith Square Conservation Area. This is as set out in Policies 38, 39 and 40 of the City Plan 2019 - 2040 (April 2021)."

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Progress

Submitted
19 Jul 2021
— completed
Validated
19 Jul 2021
— completed
Consultation
—
— completed
Target date
16 Aug 2021
— completed
Decided
9 Sept 2021
— completed

Application details

Reference
21/04925/NMA
Local authority
Westminster
Postcode
SW1P 2AL
Ward
SJD_02
Application type
All Other
Property type
Commercial

Key dates

Submitted
19 Jul 2021
Validated
19 Jul 2021
Target decision
16 Aug 2021
Decided
9 Sept 2021

Estimated project value

£37k–£100k

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 2026 loft conversion cost guide.

Recently sold nearby

New owners, recently moved in. First work on a house usually follows within months of completing. 8 recent sales are listed below.

Homes here go for about £532,500 — the median of the last 8 market sales in SW1P (the wider postcode district), £361,500 to £2,450,000.

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