← Back to search

Permitted21/03572/FULLSubmitted 5 years agoConservatory

150, 156 Piccadilly Westminster W1J 9BR

Erection of a temporary fire escape staircase for 21 Arlington Street for a period of 3 years and facilitating works including demolition of modern conservatory to William Kent House and a blockwork wall, associated cuts into listed fabric to enable structural support of the escape stair, and works to make good the fabric upon removal of the temporary escape stair and permanent hard landscaping in place of removed conservatory.

Find on council portal

Tracking, tags and letters are part of the paid plan. See what it costs. Searching and reading any record stays free.

Progress

Submitted
28 May 2021
— completed
Validated
28 May 2021
— completed
Consultation
2 Jul 2021
— completed
Target date
23 Jul 2021
— completed
Decided
23 Jul 2021
— completed

Application details

Reference
21/03572/FULL
Local authority
Westminster
Postcode
W1J 9BR
Ward
SJB_02
Application type
All Other
Property type
House

Key dates

Submitted
28 May 2021
Validated
28 May 2021
Comments close
2 Jul 2021
Target decision
23 Jul 2021
Decided
23 Jul 2021

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

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 £3,210,000 — the median of the last 4 market sales in W1J (the wider postcode district), £632,000 to £5,488,000.

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