Planning application
2025/5717/P
23 Oakhill Avenue London NW3 7RD
Proposal
Demolition of the existing conservatory and ground-floor extensions associated with excavation works at lower ground floor level for a new two storey extension; installation of external staircase enclosure all to the rear lower and ground floor levels, including alteration to the fenestration treatment to the rear and side elevations, installations of rooflight to the main roofslope, installation of glazed balustrade for a new terrace area at ground floor level all to the rear elevation.
As published by the council, reference 2025/5717/P
Timeline
Dates from the published record
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17 Dec 2025
Received by Camden
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22 Dec 2025
Validated
Checked as complete and ready for consideration.
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24 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 householder applications
How this application type works
Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.
Nearby applications
Within 500 metres
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2025/5791/L Awaiting decision
23 Oakhill Avenue London NW3 7RD
Demolition of the existing conservatory and ground-floor extensions associated with excavation works at lower ground floor level for a new two storey extension; installation of external staircase enclosure all to the rear lower and ground floor levels including installation of glazed balustrade for a new terrace area at ground floor level all to the rear elevation; internal alterations across all existing floors, including the creation of a new loft conversion with rooflights and a new staircase; installation of rooflights to the rear roofslope, refurbish and redecorate the existing historic windows, repointing of the brickwork, reinstate of the fireplaces in the principal rooms; fenestration alterations to the rear and flank elevation.
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2024/5242/T Granted
21 Oakhill Avenue London NW3 7RD
FRONT GARDEN: 1 x Holly (Ilex aquifolium) (T5) - Reduce in height approx. 2m - 2.5m to the height of the window seal of the first floor. - Trim remaining crown to shape and contain.
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2011/0227/P Granted
25 Oakhill Avenue London NW3 7RD
Conversion of ground and first/second floor maisonette to single-family dwelling house (Class C3).
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2011/0230/L Granted
25 Oakhill Avenue London NW3 7RD
Internal alterations in connection with conversion of ground and first/second floor maisonette to single-family dwellinghouse (Class C3).
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2022/4672/P Granted
25 Oakhill Avenue London NW3 7RD
Amalgamation of two self-contained flats into single dwelling, basement excavation and demolition of existing rear extension to provide a new two-storey extension over lower ground and ground floor levels, and associated internal alterations.
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2023/3089/L Granted
25 Oakhill Avenue London NW3 7RD
Replacement of single-glazed windows with slimline double-glazed timber framed units at rear and side elevations to match existing window joinery, and installation of histoglass secondary glazing on remaining side and rear windows.
Other householder applications
In Camden
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2026/3241/P Awaiting decision
15 Eton Villas London NW3 4SG
Single storey rear extension, 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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2026/1084/P Granted
13 Hampstead Hill Gardens London NW3 2PH
Erection of a single storey lower ground floor rear extension following demolition of existing orangery, part enclosure of the existing inset terraces and installation of enlarged rooflight at rear roof level, new window at rear first floor level, replacement roof and installation of rooflight to convert existing garage into habitable space with cycle storage, and replacement windows and doors to all external elevations.
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2026/3200/P Awaiting decision
22 Redington Road London NW3 7RG
Retrospective application for the erection of replacement bin store.
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2026/3150/P Awaiting decision
16 Alvanley Gardens London NW6 1JD
Erection of side and rear extensions at ground and first-floor levels; alterations to the roof including the installation of four rooflights, eight solar panels and four dormer windows to the side and rear roof slopes; installation of external solar shading; replacement of existing single-glazed windows with triple-glazed windows; and installation of external wall insulation to the side and rear elevations to improve the building's energy efficiency.
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2026/3145/P Awaiting decision
3 Christchurch Hill London NW3 1JY
Excavation of the existing front vaults to provide additional amenity floorspace, enlargement of the existing front and rear roof dormers, alterations to the front boundary treatment and associated landscaping, alterations to the rear hard landscaping, including the creation of a new garden with level access; infilling of the first-floor rear balcony to create a new study; installation of a rain garden on the roof of the existing first-floor rear outshot; replacement of existing timber windows and lead roofing; and relocation of the existing rooflight at third-floor level.