90 Frognal London NW3 6XB

This site has had 7 applications since 2025: 7 approved, 0 refused.

• 2026/2318/L Granted

  90 Frognal London NW3 6XB

  Structural strengthening of underground vault and underpinning of northern side of ground-floor boot room.

  Decided 28 Jul 2026 Heritage and listed buildings
• 2026/1513/P Granted

  90 Frognal London NW3 6XB

  Details pursuant to Conditions 4 (Green Roof) and 5 (Tree Protection) to planning permission ref. 2025/3685/P (dated 29/09/2025) for: Erection of garden studio building; associated rear garden works comprising new garden walls/fences, rebuilding of brick boundary walls, and associated landscaping.

  Decided 24 Apr 2026 Full applications
• 2025/5840/L Granted

  90 Frognal London NW3 6XB

  Replacement of modern stair with sympathetic, period appropriate alternative, minor internal reconfigurations including removal of modern downlights and refurbishment of historic floorboards. Roof replacement with natural slate and general roof repairs using traditional materials.

  Decided 1 Apr 2026 Heritage and listed buildings
• 2025/3685/P Granted

  90 Frognal London NW3 6XB

  Erection of garden studio building; associated rear garden works comprising new garden walls/fences, rebuilding of brick boundary walls, and associated landscaping.

  Decided 29 Sep 2025 Householder
• 2025/1020/P Granted

  90 Frognal London NW3 6XB

  Demolition of existing rear extension and single-storey side link structure; erection of single-storey rear extension and single-storey link extension; general internal refurbishment works; minor exterior works comprising removal of external metal staircase at rear.

  Decided 2 May 2025 Full applications
• 2025/1073/L Granted

  90 Frognal London NW3 6XB

  Demolition of existing rear extension and single-storey side link structure; erection of single-storey rear extension and single-storey link extension; general internal refurbishment works; minor exterior works comprising removal of external metal staircase at rear.

  Decided 2 May 2025 Heritage and listed buildings

1. 21 Aug 2025

   Received by Camden

2. 29 Sep 2025

   Decision issued: Granted

3. 22 Jul 2026

   Added to PlanIndex

Camden granted permission on 29 September 2025, 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.

• Frognal Community Gardens Frognal London NW3 6XR

  2022/0146/T 50 yards away

  DD 5 Day Notice COMMUNAL GARDENS: 1 x London Plane (T28) - Fell to ground level.

  Granted Trees

• Frognal House 99 Frognal London NW3 6XR

  2026/4180/L Submitted 25 Sep 2026 50 yards away

  96% historically approved · decision due ~25 Nov

  Details for partial discharge of condition 5 (Structure report) of listed building consent 2024/0176/L dated 24/09/2025 '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'

  Awaiting decision Heritage and listed buildings Extension Demolition 2 docs

• 88 Frognal London Camden NW3 6XB

  2026/3868/L Submitted 7 Sep 2026 50 yards away

  96% historically approved · decision due ~16 Nov

  Discharge of condition 4 (c) and (d) of 2025/3436/L (External works comprising demolition of existing conservatory and erection of single-storey ground floor extension; demolition of existing garage and erection of replacement garage; alterations and repairs to roof; repair and minor alterations to building facade; provision of new hard and soft landscaping. Interior works comprising general remodelling works; minor changes to planform and openings; installation of new mechanical and electrical services throughout)

  Awaiting decision Heritage and listed buildings Extension Roofing +1 4 docs
  Small domestic

• 88 Frognal London NW3 6XB

  2026/3868/P Submitted 7 Sep 2026 50 yards away

  92% historically approved · decision due ~16 Nov

  Details pursuant to Condition 5 (Tree Protection) of planning permission ref. 2025/3373/P (dated 26/09/2025) for: Demolition of existing conservatory and erection of single-storey ground floor extension; demolition of existing garage and erection of replacement garage; alterations to roof; provision of new hard and soft landscaping.

  Awaiting decision Full applications Extension Demolition +1 4 docs
  Small domestic

• Highway Adjacent to 291 Finchley Road London NW3 6ND

  2010/6632/P 50 yards away

  Prior approval for the Installation of 1 x BT DSLAM Cabinet.

  Withdrawn Full applications

• 291 Finchley Road London NW3 6ND

  2016/1327/A 50 yards away

  Display of x3 internally illuminated (lettering & logo only) fascia signs and x1 projecting sign on Finchley Road and Rosemont Road frontages.

  Granted

• 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