De Morgan House London Mathematical Society 58-58 Russell Square London WC1B 4HS

1. 6 Jan 2015

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

Camden granted permission on 6 January 2015, 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.

• 57 - 58 Russell Square London WC1B 4HS

  2023/5447/T Submitted 22 Dec 2023 50 yards away

  REAR GARDEN: 2 x London Planes (T1 & T2) - Reduce back from building of 97-107 Cranfield House and De Morgan House by 1.5m - 2m via thinning. Thin density of crown by 20%. Remove crossing branches, remove storm damage to branches greater than 20mm.

  Granted Trees 3 docs

• 57-58 Russell Square London Camden WC1B 4HS

  2022/1723/L 50 yards away

  Repair (installing two support steel beams) to stone slab cantilever staircase. A repair is required due to a crack in the stone slab.

  Granted Heritage and listed buildings

• 57-58 Russell Square London WC1B 4HS

  2016/5844/L 50 yards away

  Removal of a non-original partition wall at basement level and renovation of existing WCs.

  Granted Heritage and listed buildings

• 57 - 58 Russell Square London WC1B 4HS

  2021/0076/T 50 yards away

  REAR GARDEN: 2 x London Planes (T1 & T2) - Reduce all round by 1.5m - 2m.

  Granted Trees

• 57-58 Russell Square London WC1B 4HS

  2013/4371/P 50 yards away

  Re-landscaping of rear garden to extend raised seating area with associated railings and wall.

  Granted Full applications

• 57 - 58 Russell Square London WC1B 4HP

  2014/7486/T 50 yards away

  (TPO REF C5) REAR GARDEN: 2 x Plane - Reduce from building by 2m, remove low branches from toot, crown thin by 25%

  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