← Back to search

Permitted25/08273/NMASubmitted 6 months agoLoft conversion

1 Hanover Street Westminster W1S 1YZ

Amendments to planning permission dated 27th March 2024 (RN: 23/08783/FULL) for, "Installation of new front and end-of-trip facilities entrances on Hanover Street; alterations to the internal atrium; replacement of roof structures and upgrading plant and creating new pavilion and terrace on the roof; introduction of a new mansard roof onto Hanover Street; infill extension on Princes Street at 5th and 6th floor; alterations to the Cupola; replacement of existing artwork; reorganisation of internal partitioning; and associated works"; Namely, to allow retention of perimeter balustrades, relocation of light box on Hanover Street, alterations to facade to display public artwork, and amendments to cladding system of core.

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.

Map of the site

Progress

Submitted
4 Mar 2026
— completed
Validated
4 Mar 2026
— completed
Consultation
— completed
Target date
1 Apr 2026
— completed
Decided
31 Mar 2026
— completed

Application details

Reference
25/08273/NMA
Local authority
Westminster
Postcode
W1S 1YZ
Ward
WEW_22
Application type
All Other
Property type
House

Key dates

Submitted
4 Mar 2026
Validated
4 Mar 2026
Target decision
1 Apr 2026
Decided
31 Mar 2026

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.

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