Planning application
2015/1873/L
Flat A, 50 Mornington Terrace London NW1 7RT
Proposal
Side infill lower ground extension, internal alterations and conversion of existing vaults into habitable rooms and a single storey rear outbuilding.
As published by the council, reference 2015/1873/L
Timeline
Dates from the published record
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22 Oct 2015
Decision issued: Granted
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22 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
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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2017/0574/P Granted
Flat A 50 Mornington Terrace London NW1 7RT
Details of green roof, as required by condition 4 of planning permission ref 2015/1507/P (dated 22/10/2015) for the erection of a side infill lower ground extension with terrace at upper ground floor area, conversion of existing vaults into habitable rooms and a single storey rear outbuilding.
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2021/1638/L Granted
Flat A 50 Mornington Terrace London NW1 7RT
Installation of internal secondary glazing to two windows and two mechanical ventilation units at basement level and ground floor for noise mitigation during construction of the HS2 railway at Euston.
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2015/1507/P Granted
Flat A, 50 Mornington Terrace London NW1 7RT
Erection of a side infill lower ground extension with terrace at upper ground floor area, conversion of existing vaults into habitable rooms and a single storey rear outbuilding.
-
2013/0947/L Withdrawn
50a Mornington Terrace London NW1 7RT
Erection of a two storey extension to rear of residential dwelling (Class C3) and associated works.
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2013/0841/P Withdrawn
50a Mornington Terrace London NW1 7RT
Erection of a two storey extension with access steps to the garden to rear of maisonette (Class C3) and associated landscaping.
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2013/4096/P Withdrawn
50 Mornington Terrace London NW1 7RT
Part two, part single storey rear extension with ground floor roof terrace, alterations to front vaults, front basement extension, erection of single storey outbuilding and landscaping to .existing dwellinghouse (Class C3).
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).