12 Jeffrey's Street London NW1 9PR

This site has had 4 applications since 2021: 3 approved, 0 refused.

• 2025/4653/L Withdrawn

  12 Jeffrey's Street London NW1 9PR

  Reduce floor level of front vault under entrance steps

  Decided 3 Dec 2025 Heritage and listed buildings
• 2020/4989/L Granted

  12 Jeffrey's Street London NW1 9PR

  Erection of a ground floor rear and side extension and alterations to front entrance and rear extension including the enlargement of rear window to form a door.

  Decided 11 Aug 2021 Heritage and listed buildings
• 2020/4950/P Granted

  12 Jeffrey's Street London NW1 9PR

  Erection of a ground floor rear and side extension and alterations to front entrance and rear extension including the enlargement of rear window to form a door.

  Decided 11 Aug 2021 Full applications

1. 28 Jan 2026

   Received by Camden

2. 29 Jan 2026

   Validated

   Checked as complete and ready for consideration.

3. 13 Mar 2026

   Decision issued: Granted

4. 9 Aug 2026

   Added to PlanIndex

Camden granted permission on 13 March 2026, 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.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• 12 Jeffrey's Street London NW1 9PR

  2025/4653/L Submitted 16 Oct 2025 50 yards away

  Reduce floor level of front vault under entrance steps

  Withdrawn Heritage and listed buildings 9 docs

• 12 Jeffrey's Street London Camden NW1 9PR

  2024/2869/L 50 yards away

  Replacement of single glazed timber sliding sashes to the front and rear elevation with new replica laminated-single glazed sliding sashes, retaining any historic frames where present, and replacing any non-historic frames.

  Granted Heritage and listed buildings Windows or glazing

• 12 Jeffrey's Street London NW1 9PR

  2020/4989/L 50 yards away

  Erection of a ground floor rear and side extension and alterations to front entrance and rear extension including the enlargement of rear window to form a door.

  Granted Heritage and listed buildings Extension Windows or glazing

• 12 Jeffrey's Street London NW1 9PR

  2020/4950/P 50 yards away

  Erection of a ground floor rear and side extension and alterations to front entrance and rear extension including the enlargement of rear window to form a door.

  Granted Full applications Extension Windows or glazing

• 14 Jeffrey's Street London NW1 9PR

  2016/5001/T 50 yards away

  REAR GARDEN: 1 x Cherry - Fell to ground level

  Granted Trees

• 10 Jeffrey's Street London NW1 9PR

  2023/1229/T 50 yards away

  REAR GARDEN: 1 x Willow (T1) - Reduce to approx. 2.5m below previous pruning points.

  Granted Trees

• 2026/1141/L Granted

  25 John Street London WC1N 2BS

  Internal and external alterations to partition layout at basement, supporting structures and external ground level, and alterations to design of conservatory, windows and doors granted under listed building consent 2024/0338/L dated 06/08/2024.

  Received 26 Mar, published by the council 24 Jul 2026 Heritage and listed buildings
• 2025/1781/L Granted

  Frognal Rise House Lower Terrace London NW3 6RE

  Demolition of existing garage and interlinking gallery and replacement with new garage and garden room with link, new basement floor below garden, alterations to main house including replacement windows including reinstated oriel window and new French doors to entrance elevation, new roofing to side wing, new portico and replacement door to front elevation, enlargement of existing lightwell, replacement gates and canopy over entrance gate, restorations of boundary treatments, associated internal alterations including partial underpinning works and other minor alterations.

  Received 22 Apr, published by the council 22 Jul 2026 Heritage and listed buildings
• 2026/4129/L Awaiting decision

  6 Leverton Street London NW5 2PJ

  Strip out kitchen including floor tiles and replace; replace plumbing and flooring in rear ensuite; replace plumbing in front ensuite and WC; replace internal doors; replace garden wall with metal railing; replace 3 rear windows, 3 rear elevation side windows, 1 rear door and 1 rear elevation side door with double-glazed crittal windows and doors; remove 2 rear windows; render rear elevation brickwork; and associated works.

  Received 1 Oct, published by the council 9 Oct 2026 Heritage and listed buildings
• 2026/1686/L Granted

  Flat Ground and 1st Floor and Flat 2nd and 3rd Floor 14 Downshire Hill London NW3 1NR

  External and internal alterations in connection with conversion of two self-contained flats into a single-family dwellinghouse, including new doors at rear ground and second floor level, replacement windows at rear second and third floors level, removal of internal partitions, extending the stair handrail, and replacement internal doors, parquet flooring, skirting, architraves, cornicing, and fittings.

  Received 19 May, published by the council 24 Jul 2026 Heritage and listed buildings
• 2026/2202/L Refused

  4 Hampstead Square London NW3 1AB

  Erection of conservatory to front elevation.

  Received 27 May, published by the council 24 Jul 2026 Heritage and listed buildings