Planning application
2024/0176/L
Frognal House 99 Frognal London NW3 6XR
Proposal
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. Internal alterations to main house
As published by the council, reference 2024/0176/L
Timeline
Dates from the published record
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22 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Camden for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About heritage and listed buildings applications
How this application type works
Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.
More on heritage and listed buildings applications in our guide
Nearby applications
Within 500 metres
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2022/5443/T Granted
Frognal House 99 Frognal London NW3 6XR
SIDE COURTYARD GARDEN: 1 x Willow (T1) - Fell in sections to ground level.
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2016/1237/T Granted
99 Frognal House Frognal London NW3 6XR
REAR GARDEN: 1 x London Plane T1 - reduce back to previous points 1 x Maple T2 - reduce back to previous points 1 x Horse Chestnut T4 - reduce back to previous points 1 x Conifer T5 - fell to ground level 1 x Alder T6 - reduce by 4 metres in height and 2 metres on lateral away from building 1 x London Plane T7 - reduce by 3 metres in height and 2 metres on laterals to take away from neighbouring building roof 1 x Silver Birch T8 - reduce by 3 metres in height 1 x Large conifer T9 - fell to ground level due to excessive shading and tree on lean Group small conifers/yew T10,11,13 &14 - fell to ground level 1 x Beech T12 - reduce by 4 meters in height and 2 meters on laterals 1 x Cherry T15 - fell due to wounded stem 1 x Cherry T18 - reduce laterals away from adjacent building SIDE GARDEN: 1 x Cherry T3 - reduce by 2 metres in height and cut away from building 1 x Large conifer T16 - remove due tree growing too large for its location - tree on a lean and producing excessive leaf litter on convent 1 x Holly T17 - remove due to proximity to building
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2017/4825/P Granted
99A Frognal London NW3 6XR
Details of tree report as required by condition 7 and details of green roof as required by condition 15 of planning permission 2013/7195/P dated 23/10/2014 for erection of a three-storey dwelling house (Class C3) with basement following demolition of existing dwelling
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2017/5011/P Granted
99A Frognal London NW3 6XR
Details of Sustainable Urban Drainage System as required by condition 11 of planning permission 2013/7195/P dated 23/10/2014 for the erection of a three storey dwelling house (Class C3) with basement following demolition of existing dwelling
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2024/0030/P Awaiting decision
Frognal House 99 Frognal London NW3 6XR
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
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2020/0574/T Granted
Frognal House 99 Frognal London NW3 6XR
FRONT SIDE GARDEN: 1 x Horse Chestnut (T1) - Crown reduce back to previous points.
Other heritage and listed buildings applications
In Camden
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2026/3248/L Awaiting decision
15 Eton Villas London NW3 4SG
Single storey rear extension, internal reconfigurations, installation of double-glazed windows and doors, new air-conditioning units, landscaping to rear garden and erection of outbuilding amongst other alterations to the property.
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2026/3213/L Awaiting decision
51, 53, 55, 57 Lamb's Conduit Street London Camden WC1N 3NB
Installation of gas infrastructure including an external gas riser, associated pipework, and internal alterations comprising the relocation of gas meters and associated connections
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2026/2318/L Granted
90 Frognal London NW3 6XB
Structural strengthening of underground vault and underpinning of northern side of ground-floor boot room.
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2026/2136/L Granted
45 Downshire Hill London NW3 1NU
Proposed repair and replacement of front elevation windows with matching single glazed timber sash units. Replacement modern French doors in slim-profile double glazing. Rear windows retained, and repaired as required.
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2026/2122/L Granted
6 Royal College Street London NW1 0TH
Various internal and external changes, including replacement and alteration to timber windows, adjustments to internal layout, installation of fire-rated doors and emergency lighting, relocation and rearrangement of bathroom and kitchen (retrospective).