Amendments to planning permission dated 10 July 2019 (RN: 19/03947) for: 'Installation of inward opening metal gates at ground floor level on the Oxford Street facade'; NAMELY, to make minor structural adjustments to the consented gates.
Keysign House 421 - 429 Oxford Street London W1C 2PH · premises record
Amendments to planning permission dated 10 July 2019 (RN: 19/03947) for: 'installation of inward opening metal gates at ground floor level on the Oxford Street facade' NAMELY, to allow for the approved gates to be recessed by 0.3m.
Keysign House 421 - 429 Oxford Street London W1C 2PH · premises record
Amendments to planning permission dated 09 October 2017 (RN 17/07471/FULL) which varied conditions 1, 10 and 12 of planning permission dated 29 March 2016 (RN 15/11925/FULL) for the Erection of extensions at first and second floors on Balderton Street and first, second and part third floor on Lumley Street, recladding of existing building at ground and first floors, use of lower ground to third floors as retail (Class A1), new shopfronts, installation of plant at second and third floor levels and other associated works from RN 15/11925/FULL. Namely, to strip out and blank out top window panel of the 3rd floor window to provide services from the plant area to the new retail unit.
Keysign House 421 - 429 Oxford Street London W1C 2PH · premises record
Display of non-illuminated advertising attached to a hoarding measuring 41.3m x 2.40m, 32.0m x 2.40m and 21.4m x 2.40m for a temporary period from 24th June 2019 to 24th December 2019.
Details of new shopfront and window frames/ extended facades on Balderton Street and Lumley Street adjoin the neighbouring Balderton Flats pursuant to Condition 4 Part A and B of planning permission dated 9 October 2017 (RN: 17/07471).
Keysign House 421 - 429 Oxford Street London W1C 2PH · premises record
Approval of details pursuant to condition 4 of planning permission dated 18 May 2016 (RN: 16/02651/FULL) namely details of the relocation of the existing on-street cycle racks.
Keysign House 421-429 Oxford Street London W1C 2PH · premises record
Relocation of substations to land at the northern end of Balderton Street, adjacent to the site at 421-429 Oxford Street, for a temporary period of two years.
Keysign House 421 - 429 Oxford Street London W1C 2PH · premises record
Display of halo illuminated fascia letter, externally illuminated projecting sign (0.7m x 0.7m) and an externally illuminated fascia sign (0.7m x 0.7m).
Keysign House 421-429 Oxford Street London W1C 2PH · premises record
Amendments to planning permission dated 10 July 2019 (RN: 19/03947) for: 'Installation of inward opening metal gates at ground floor level on the Oxford Street facade'; NAMELY, to make minor structural adjustments to the consented gates.
Keysign House 421 - 429 Oxford Street London W1C 2PH · premises record
Amendments to planning permission dated 10 July 2019 (RN: 19/03947) for: 'installation of inward opening metal gates at ground floor level on the Oxford Street facade' NAMELY, to allow for the approved gates to be recessed by 0.3m.
Keysign House 421 - 429 Oxford Street London W1C 2PH · premises record
Amendments to planning permission dated 09 October 2017 (RN 17/07471/FULL) which varied conditions 1, 10 and 12 of planning permission dated 29 March 2016 (RN 15/11925/FULL) for the Erection of extensions at first and second floors on Balderton Street and first, second and part third floor on Lumley Street, recladding of existing building at ground and first floors, use of lower ground to third floors as retail (Class A1), new shopfronts, installation of plant at second and third floor levels and other associated works from RN 15/11925/FULL. Namely, to strip out and blank out top window panel of the 3rd floor window to provide services from the plant area to the new retail unit.
Keysign House 421 - 429 Oxford Street London W1C 2PH · premises record
Display of non-illuminated advertising attached to a hoarding measuring 41.3m x 2.40m, 32.0m x 2.40m and 21.4m x 2.40m for a temporary period from 24th June 2019 to 24th December 2019.
Details of new shopfront and window frames/ extended facades on Balderton Street and Lumley Street adjoin the neighbouring Balderton Flats pursuant to Condition 4 Part A and B of planning permission dated 9 October 2017 (RN: 17/07471).
Keysign House 421 - 429 Oxford Street London W1C 2PH · premises record
Approval of details pursuant to condition 4 of planning permission dated 18 May 2016 (RN: 16/02651/FULL) namely details of the relocation of the existing on-street cycle racks.
Keysign House 421-429 Oxford Street London W1C 2PH · premises record
Relocation of substations to land at the northern end of Balderton Street, adjacent to the site at 421-429 Oxford Street, for a temporary period of two years.
Keysign House 421 - 429 Oxford Street London W1C 2PH · premises record
Display of halo illuminated fascia letter, externally illuminated projecting sign (0.7m x 0.7m) and an externally illuminated fascia sign (0.7m x 0.7m).
Keysign House 421-429 Oxford Street London W1C 2PH · premises record
Building-control records are not yet collected for Westminster — the register is being gathered borough by borough (held so far: Lambeth, Brent, Ealing, Westminster, City and others).
Place
What affects it?
Every mapped designation touching a premises in this postcode, with how many of its 8 premises each one covers.
Designation
Coverage
Archaeological Priority Area
City of Westminster APA 2.5: Great Estates Summary and Definition The Great Estates APA covers an area bounded by Park Lane to the west, Green Park and St James’s Park to the south, Haymarket, Shaftesbury Avenue, Charing Cross Road and t · reference 76098 · covers 8 of 8 premises. Groundworks may require archaeological assessment or investigation.
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 8 of 8 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Article 4 Direction Class E To C3 In Central Activities Zone · reference 23/00004/REG_4 · covers 8 of 8 premises. Some normally permitted changes may require planning permission.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 8 of 8 premises. London Plan policies for the Central Activities Zone may apply.
Conservation Area
Mayfair · reference CONARA/1270 · covers 8 of 8 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Archaeological Priority Area
City of Westminster APA 2.5: Great Estates Summary and Definition The Great Estates APA covers an area bounded by Park Lane to the west, Green Park and St James’s Park to the south, Haymarket, Shaftesbury Avenue, Charing Cross Road and t · reference 76098 · covers 8 of 8 premises. Groundworks may require archaeological assessment or investigation.
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 8 of 8 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Article 4 Direction Class E To C3 In Central Activities Zone · reference 23/00004/REG_4 · covers 8 of 8 premises. Some normally permitted changes may require planning permission.
Show all 5 rows
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 8 of 8 premises. London Plan policies for the Central Activities Zone may apply.
Conservation Area
Mayfair · reference CONARA/1270 · covers 8 of 8 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
Planning precedent23 applications and 74 mapped decisions in this postcode — precedent for what has been permitted and refused here.
EnergyNo EPC records joined yet.
What is not assertedNo capacity, value or ownership claim is made at area level; those belong to individual premises records and their evidence.
Intent signals
Planning Atlas Pro
Ownership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
No intent signal is currently recorded in this postcode.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.
W1C 2PH, Westminster: Planning and Property History | Planning Atlas