23 Tamar House 12 Tavistock Place London WC1H 9RD

This site has had 4 applications since 2014: 4 approved, 0 refused.

• 2014/5102/L Granted

  23 Tamar House 12 Tavistock Place London WC1H 9RD

  Internal alterations in association with the installation of dormer on rear elevation and alterations to existing windows and doors.

  Decided 18 Nov 2014 Heritage and listed buildings
• 2014/4708/P Granted

  23 Tamar House 12 Tavistock Place London WC1H 9RD

  Installation of dormer on rear elevation and alterations to existing windows and doors.

  Decided 18 Nov 2014 Full applications
• 2014/4709/P Granted

  23 Tamar House 12 Tavistock Place London WC1H 9RD

  Erection of rear extension at third floor level, creation of 2x rear balconies and alterations to existing windows and doors.

  Decided 18 Nov 2014 Full applications

1. 18 Nov 2014

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

Camden granted permission on 18 November 2014, 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.

• 6-14 Tavistock Place (including Tamar House, no. 12) London WC1H 9RD

  2022/0311/P 50 yards away

  Alterations at rear roof level to replace rooflights with dormer windows; replacement of all single-glazed timber framed windows and doors at rear (all floors) and at front (top floor only) with dark grey, aluminium framed, double-glazed units; and installation of new full height door to replace window within existing opening at front top floor level.

  Granted Full applications Loft or dormer Windows or glazing

• 23 Tamar House 12 Tavistock Place London WC1H 9RD

  2014/5102/L 50 yards away

  Internal alterations in association with the installation of dormer on rear elevation and alterations to existing windows and doors.

  Granted Heritage and listed buildings Loft or dormer Windows or glazing

• 6-14 Tavistock Place (including Tamar House, no. 12) London WC1H 9RD

  2022/1955/L 50 yards away

  External alterations at rear roof level to replace rooflights with dormer windows; replacement of all single-glazed timber framed windows and doors at rear (all floors) and at front (top floor only) with dark grey, aluminium framed, double-glazed units; and installation of new full height door to replace window within existing opening at front top floor level.

  Granted Heritage and listed buildings Loft or dormer Windows or glazing

• Flats 23 25 26 Tamar House 12 Tavistock Place London WC1H 9RD

  2025/4207/L Submitted 15 Oct 2025 50 yards away

  Replacement of the fifth floor glazed balustrade with new toughened glass panels, fixed into existing frames.

  Granted Heritage and listed buildings Windows or glazing 15 docs

• 23 Tamar House 12 Tavistock Place London WC1H 9RD

  2014/4708/P 50 yards away

  Installation of dormer on rear elevation and alterations to existing windows and doors.

  Granted Full applications Loft or dormer Windows or glazing

• 23 Tamar House 12 Tavistock Place London WC1H 9RD

  2014/4709/P 50 yards away

  Erection of rear extension at third floor level, creation of 2x rear balconies and alterations to existing windows and doors.

  Granted Full applications Extension Windows or glazing

• 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