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Frognal House 99 Frognal London NW3 6XR

2026/1547/PApproval of DetailsApproved
Discharge / amendments

Approved on 1 June 2026

Council decision: Granted

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Details for partial discharge of Part C of condition 20 (Air Quality Monitors) from planning application 2024/0030/P dated 24/09/2025 for 'Change of use of convent (Sui Generis) to create four residential units (C3), demolition of existing extension and erection of a part one part two storey extension with green roof.Erection of roof extension with roof terrace and railings. Excavation of basement with entrance, conversion of garage, new bin and bike stores, hard and soft landscaping and alterations to fenestrations of the main house.'

Submitted
30 April 2026
  1. Received30 Apr
  2. Validated
  3. Consult.
  4. Target
  5. Decided1 Jun

Decided in 32 days (council typically 49)

About this application

This is a planning application for demolition at Frognal House 99 Frognal London NW3 6XR. Camden has handled 314 applications of this type. This one was decided in 32 days, 2 weeks quicker than Camden's typical decision time. The site is in the Hampstead conservation area, with 9 listed buildings nearby. There have been 9 other applications at this address. In the past year there have been 298 applications across Frognal. We hold 2,616 applications in total for the NW3 postcode area.

100% of approval of details applications at London Borough of Camden were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
NW3 6XR
Application type
Approval of Details

Applicant and agent

Applicant
Private applicant

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Hampstead
  • Listed building: Grade II: St Dorothys ConventOn this site · +1 more
  • Article 4 direction: Basements+2 more
  • Brownfield land register: Frognal House 99 Frognal London NW3 6XRRegister site at or near this address
  • Flood zone 1: Low probability (rivers and sea)

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (19)

flood storage areas, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves and heritage coasts.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Associated applications

  1. 2026
    27 May

    Details for discharge of condition 6 (chartered engineer), 9 (Flood risk mitigation) and 10 (Rainwater…

    ApprovedDischarge of conditions2026/2108/P
  2. 2026
    30 Apr

    Details for partial discharge of Part C of condition 20 (Air Quality Monitors) from planning application…

    This applicationApprovedDischarge of conditions2026/1547/P
  3. 2026
    30 Apr

    Details for discharge of condition 12 (Green Roof) and 25 (Hard and soft landscaping) from planning…

    ApprovedDischarge of conditions2026/1643/P
  4. 2026
    22 Apr

    Non-material amendment for application 2024/0030/P

    ApprovedNon-material amendmentAmendment2026/1503/P
  5. 2024
    3 Jan

    Change of use of convent (Sui Generis) to create four residential units (C3), demolition of existing…

    PendingFull Planning PermissionPart of2024/0030/P
  6. 2024
    3 Jan

    Change of use of convent (Sui Generis) to create four residential units (C3), demolition of existing…

    PendingListed building consentFiled alongside2024/0176/L

Source: Camden

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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