Planning application
46 Delancey Street London NW1 7RY
Works: Extension Loft or dormer Demolition Windows or glazing Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Erection of new mansard roof extension, installation of new staircase from ground floor to garden (following demolition of existing rear lean to conservatory), alterations to fenestration, and lowering of basement floor level by 360mm all in connection with existing dwellinghouse (Class C3).
As published by the council, reference 2012/5487/P
Application record
- Reference
- 2012/5487/P
- Category
- Full applications
- Status
- Final Decision
- Decision
- Granted
- Decided
- 20 Dec 2012
- Postcode
- NW1 7RY
Site history
Applications at this address on the Camden register
This site has had 2 applications since 2012: 2 approved, 0 refused.
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2012/5490/L Granted
46 Delancey Street London NW1 7RY
Erection of new mansard roof extension, installation of new staircase from ground floor to garden (following demolition of existing rear lean to conservatory), alterations to fenestration, lowering of basement floor level by 360mm and internal alterations all in connection with existing dwellinghouse (Class C3).
Timeline
Dates from the published record
-
20 Dec 2012
Decision issued: Granted
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22 Jul 2026
Added to PlanIndex
What this grant of permission means
Camden granted permission on 20 December 2012, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 500 metres
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46 Delancey Street London NW1 7RY
Erection of new mansard roof extension, installation of new staircase from ground floor to garden (following demolition of existing rear lean to conservatory), alterations to fenestration, lowering of basement floor level by 360mm and internal alterations all in connection with existing dwellinghouse (Class C3).
Granted Heritage and listed buildings Extension Loft or dormer +2Small domestic -
46 Delancey Street NW1 7RY
Details of new windows (condition 4a), doors (4b), samples of materials (4c) and building control upgrading works (4d) of listed building consent granted on 20/12/2012 (ref. 2012/5490/L)for refurbishment of existing dwellinghouse including the erection of new mansard roof extension, installation of new staircase from ground floor to garden (following demolition of existing rear lean to conservatory), alterations to fenestration, lowering of basement floor level by 360mm (Class C3).
Granted Heritage and listed buildings Extension Loft or dormer +2Small domestic -
Flat A 44 Delancey Street London NW1 7RY
Installation of temporary internal secondary glazing to one window to the front elevation at basement level for noise mitigation works during construction of the HS2 railway.
Granted Heritage and listed buildings Windows or glazing -
48 Delancey Street London NW1 7RY
Addition of railings to rear extension to create 1st floor terrace and alterations to adjacent sash window.
Granted Full applications Extension Windows or glazing -
48 Delancey Street London NW1 7RY
Erection of mansard roof, rear first floor closet wing extension, ground floor and basement floor level glazed infill extension and associated elevational alterations.
Granted Full applications Extension Loft or dormer +1 -
48 Delancey Street London NW1 7RY
Internal and external alterations associated with the erection of a mansard roof, rear first floor closet wing extension, ground floor and basement floor level glazed infill extension and associated elevational alterations.
Granted Heritage and listed buildings Extension Loft or dormer +1
Other full applications
In Camden
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2026/2516/P Withdrawn
31 Loveridge Road London Camden NW6 2DU
Amalgamation of the existing three self-contained one-bedroom flats into a single-family dwelling house; demolition and replacement of existing outrigger; erection of a single-storey rear wrap-around extension; erection of a rear dormer extension; creation of a roof terrace above outrigger; replacement of existing windows with timber double glazed units; installation of rooflights to front roofslope; and installation of an air source heat pump in rear garden.
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2026/3830/P Awaiting decision
Euston Tower 286 Euston Road London NW1 3DP
Deed of variation to allow more flexibility with Affordable housing payments for redevelopment of Euston Tower comprising retention of parts of the existing building (including central core, basement and foundations) and erection of a new building incorporating these retained elements, to provide a 32-storey mixed-use building providing offices and research and development floorspace (Class E(g)) and office, retail, café and restaurant space (Class E) and Enterprise Space (Class E/F) at ground and first floors, and associated external terraces; public realm enhancements, including new landscaping and provision of new publicly accessible steps and ramp; short and long stay cycle storage; servicing; refuse storage; plant and other ancillary and associated work.
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2026/3282/P Granted
5 Berkley Road London NW1 8XX
Installation of 1no. above ground gas riser from the basement flat to the meter box at first floor (retrospective)
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2026/0483/P Granted
100 Avenue Road London NW3 3HF
Discharge of details for condition 47 (surface water run off details) of planning permission 2026/0404/P granted on 19/06/2026 for " Variation of conditions (2 plan numbers); 8 (quantum of commercial space); 13 (commercial windows); 15 (Wind Microclimate); 19 (commercial windows); 24 (Air quality); 34 (development quantum); 40 (Circular Economy); 44 (designing out crime); 45 (Fire Strategy); 46 (SuDS); 48 (Community facility removed), 48 (wheelchair units), 49 (TfL health and safety) to planning permission ref. 2025/0852/P (for demolition of building and provision of a mixed-use residential-led development) to secure alterations to the external appearance; internal residential and commercial space layouts; omission of community floorspace and increased affordable housing provision; cycle and car parking; hard and soft landscaping, and other associated amendments”
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2026/2697/P Awaiting decision
Flat 1, 73 Eton Avenue London NW3 3EU
Replacement of existing defective rear lean-to conservatory with a new slimline powder-coated aluminium framed conservatory with clear double glazing, on the exact same footprint as existing.