Upper Flat 123 Arlington Road London NW1 7ET

This site has had 2 applications since 2015.

• 2015/0735/P Withdrawn

  Upper Flat 123 Arlington Road London NW1 7ET

  Erection of mansard roof level to existing flat.

  Decided 23 Jul 2015 Full applications

1. 23 Jul 2015

   Decision issued: Withdrawn Decision

2. 22 Jul 2026

   Added to PlanIndex

The applicant withdrew this application before Camden decided it, and is free to submit a revised scheme at any time. 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.

• Upper Flat 123 Arlington Road London NW1 7ET

  2015/0735/P 50 yards away

  Erection of mansard roof level to existing flat.

  Withdrawn Full applications Loft or dormer

• 125 Arlington Road London NW1 7ET

  2019/1892/L Submitted 15 Mar 2019 50 yards away

  96% historically approved · decision due ~4 Jun

  Internal and external alteration including excavation for a full width basement extension, part-width ground floor extension with terrace to the flank (north) elevation, replacement of front steps to basement, and opening up of existing basement entrance.

  At appeal Heritage and listed buildings Extension 35 docs

• 125 Arlington Road London NW1 7ET

  2019/1417/P Submitted 15 Mar 2019 50 yards away

  88% historically approved · decision due ~4 Jun

  Excavation for a full width basement extension, part-width ground floor extension, installation of screen plannters for a terrace at ground floor level, including replacement of front steps to basement, and opening up of existing basement entrance, new hard and soft landscaping arrangement to the rear elevation.

  At appeal Householder Extension 46 docs
  Domestic

• 119 Arlington Road London NW1 7ET

  2022/0807/T 50 yards away

  REAR GARDEN: 1 x Corkscrew Willow (T1) - Reduce to previous points.

  Granted Trees

• 119 Arlington Road London NW1 7ET

  2011/4237/T 50 yards away

  REAR GARDEN: 1 x Palm - Fell. 1 x Contorted Willow - Reduce crown by 20%. Lift crown to 8ft. 1 x Apple - Trim and reshape. Crown thin by 20%.

  Granted Trees

• 119 Arlington Road London NW1 7ET

  2022/1709/P 50 yards away

  Alterations to roof of existing extension with replacement rooflights, new ground floor French doors and windows to existing extension and replacement of the existing first floor rear window

  Granted Full applications Extension Loft or dormer +1

• 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