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Council planning record

Replacement of the mansard infill extension to the south east of the property by extending the existing bay upwards by a single storey (3-storeys total) and associated roof works. (Linked with 26/03410/LBC)

17 Hertford Street London W1J 7RS

DecidedReference: 26/03409/FULLCity of Westminster

Last published check: 28 Sept 2026, 03:43. Check the council record for more recent changes.

Application location

17 Hertford Street London W1J 7RS

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Application summary

Status
Decided
Application type
Full Planning Permission Application
Received
22 May 2026
Validated
11 Jun 2026
Determination deadline
Not published
Local authority
City of Westminster

Application overview

Replacement of the mansard infill extension to the south east of the property by extending the existing bay upwards by a single storey (3-storeys total) and associated roof works. (Linked with 26/03410/LBC)

Proposal details

Reference
26/03409/FULL
Alternative references
PP-14956778
Ward
West End
Agent
Arya Douge

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Documents 33 of 33

DocumentPublishedAction
GRANT OF FULL PP [PE]Decision Notice · PDF27 Aug 2026View
ACK-GENERAL LETTER (G/P/C)Background Papers · PDF12 Jun 2026View
CNSLT-LA SOCIETYBackground Papers · PDF12 Jun 2026View
CNSLT-LA SOCIETYBackground Papers · PDF12 Jun 2026View
CNSLT-LA SOCIETYBackground Papers · PDF12 Jun 2026View
SITE NOTICE 21 OR 28 DAYS IF T&C APPL.Background Papers · PDF12 Jun 2026View
NEIGHBOUR NOTIFICATION LETTER (21D)Background Papers · PDF12 Jun 2026View
APPLICATIONFORMREDACTEDApplication Form · PDF11 Jun 2026View
LOCATION PLANLocation Plan · PDF11 Jun 2026View
SITE LOCATION PLANLocation Plan · PDF11 Jun 2026View
A_0599_EXISTING BASEMENT FLOOR PLANDrawing · PDF11 Jun 2026View
A_0600_EXISTING GROUND FLOOR PLANDrawing · PDF11 Jun 2026View
A_0601_EXISTING FIRST FLOOR PLANDrawing · PDF11 Jun 2026View
A_0602_EXISTING SECOND FLOOR PLANDrawing · PDF11 Jun 2026View
A_0603_EXISTING THIRD FLOOR PLANDrawing · PDF11 Jun 2026View
A_0605_EXISTING ROOF PLANDrawing · PDF11 Jun 2026View
A_0701_EXISTING SIDE ELEVATION - DOWN STREET 1Drawing · PDF11 Jun 2026View
A_0702_EXISTING SIDE ELEVATION - DOWN STREET 2Drawing · PDF11 Jun 2026View
A_0801_EXISTING SECTION B-BDrawing · PDF11 Jun 2026View
A_1999_PROPOSED BASEMENT FLOOR PLANDrawing · PDF11 Jun 2026View
A_2000_PROPOSED GROUND FLOOR PLANDrawing · PDF11 Jun 2026View
A_2001_PROPOSED FIRST FLOOR PLANDrawing · PDF11 Jun 2026View
A_2002_PROPOSED SECOND FLOOR PLANDrawing · PDF11 Jun 2026View
A_2003_PROPOSED THIRD FLOOR PLANDrawing · PDF11 Jun 2026View
A_2004_PROPOSED FOURTH FLOOR PLANDrawing · PDF11 Jun 2026View
A_2005_PROPOSED ROOF PLANDrawing · PDF11 Jun 2026View
A_2101_PROPOSED SIDE ELEVATION - DOWN STREET 1Drawing · PDF11 Jun 2026View
A_2102_PROPOSED SIDE ELEVATION - DOWN STREET 2Drawing · PDF11 Jun 2026View
A_2201_PROPOSED SECTION B-BDrawing · PDF11 Jun 2026View
DESIGN AND ACCESS STATEMENT - BAY EXT-REV BDesign and Access Statement · PDF11 Jun 2026View
HERITAGE STATEMENT - CLOSET WINGHeritage Statement · PDF11 Jun 2026View
RECEIPT OF APPLICATIONOther · PDF28 May 2026View
1ST INVALID LETTERBackground Papers · PDF28 May 2026View

Documents open on the council website. Browse council documents if a link has changed.

Application timeline

Council milestones and published deadlines. A deadline passing does not confirm a decision.

  1. Application Received Date

    Published milestoneCouncil source

  2. Application Validated Date

    Published milestoneCouncil source

  3. Last Site Notice Posted Date

    Published milestoneCouncil source

  4. Latest Site Notice Expiry Date

    Past published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

  5. Target Date

    Past published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

  6. Decision Issued Date

    Published milestoneCouncil source

  7. Decision Made Date

    Published milestoneCouncil source

  8. Agreed Expiry Date

    Past published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

Decision & conditions

Application Permitted
GRANT OF FULL PP [PE]
Planning conditions

Conditions aren’t listed here. Read the council decision notice for the full decision and conditions.

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