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Planning application

40 Downshire Hill London NW3 1NU

Granted Camden 2020/3997/L Heritage and listed buildings

Works: Extension Small domestic

Read from the description, not a valuation. How we read the register

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Erection of a single storey rear extension and the provision of new front lightwell stair, together with internal alterations including enlargement of openings in lower ground floor rear room wall.

As published by the council, reference 2020/3997/L

Application record

Reference
2020/3997/L
Category
Heritage and listed buildings
Status
Final Decision
Decision
Granted
Decided
12 Apr 2021
Postcode
NW3 1NU

Site history

Applications at this address on the Camden register

This site has had 8 applications since 2015: 8 approved, 0 refused.

  • 2025/0983/T Granted

    40 Downshire Hill London NW3 1NU

    REAR GARDEN: 3 x Limes (T1 - T3) - Pollard back to previous points of reduction.

    Decided 4 Apr 2025 Trees
  • 2022/4946/T Granted

    40 Downshire Hill London NW3 1NU

    REAR GARDEN: 2 x Limes (Tilia x europaea) - Remove all diseased or crossing branches. Thin 10% of the live branches throughout the canopy. Reduce height by approx. 3m - 4m and reduce lateral branches by 2m - 3m back to previous points of reduction maintaining shortened furnishing growth for crown continuity.

    Decided 23 Dec 2022 Trees
  • 2021/6032/L Granted

    40 Downshire Hill London NW3 1NU

    Discharge of Condition 4 (Detailed drawings of the design of the metal steps to the front lightwell) of application ref 2020/3997/L (dated 12/04/2021).

    Decided 22 Feb 2022 Heritage and listed buildings
  • 2021/6033/P Granted

    40 Downshire Hill London NW3 1NU

    Variation of Condition 2 (The development hereby permitted shall be carried out in accordance with the following approved plans) of application ref 2020/3997/L (dated 12/04/2021).

    Decided 22 Feb 2022 Full applications
  • 2020/2813/P Granted

    40 Downshire Hill London NW3 1NU

    Erection of a single storey rear extension and the provision of new front lightwell stair, together with internal alterations including enlargement of openings in lower ground floor rear room wall.

    Decided 12 Apr 2021 Full applications
  • 2017/3622/T Granted

    40 Downshire Hill London NW3 1NU

    REAR GARDEN: 2 x Limes - Reduce crowns by 30%, lift to 4m and remove epicormic shoots 1 x Magnolia - Reduce to previous points

    Decided 18 Jul 2017 Trees
  • 2015/3018/T Granted

    40 Downshire Hill London NW3 1NU

    REAR GARDEN: 2x Limes, reduce crowns by 30% to 4 metres.

    Decided 14 Jul 2015 Trees

Timeline

Dates from the published record

  1. 12 Apr 2021

    Decision issued: Granted

  2. 22 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

2 later applications on the register refer to this one:

  • 2021/6032/L Granted

    40 Downshire Hill London NW3 1NU

    Discharge of Condition 4 (Detailed drawings of the design of the metal steps to the front lightwell) of application ref 2020/3997/L (dated 12/04/2021).

    Decided 22 Feb 2022 Heritage and listed buildings
  • 2021/6033/P Granted

    40 Downshire Hill London NW3 1NU

    Variation of Condition 2 (The development hereby permitted shall be carried out in accordance with the following approved plans) of application ref 2020/3997/L (dated 12/04/2021).

    Decided 22 Feb 2022 Full applications

What this grant of permission means

Camden granted permission on 12 April 2021, 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.

About heritage and listed building applications

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.

Nearby applications

Within 500 metres

  • 40 Downshire Hill London NW3 1NU

    2021/6032/L 0m away

    Discharge of Condition 4 (Detailed drawings of the design of the metal steps to the front lightwell) of application ref 2020/3997/L (dated 12/04/2021).

    Granted Heritage and listed buildings

  • 40 Downshire Hill London NW3 1NU

    2022/4946/T 0m away

    REAR GARDEN: 2 x Limes (Tilia x europaea) - Remove all diseased or crossing branches. Thin 10% of the live branches throughout the canopy. Reduce height by approx. 3m - 4m and reduce lateral branches by 2m - 3m back to previous points of reduction maintaining shortened furnishing growth for crown continuity.

    Granted Trees

  • 40 Downshire Hill London NW3 1NU

    2017/3622/T 0m away

    REAR GARDEN: 2 x Limes - Reduce crowns by 30%, lift to 4m and remove epicormic shoots 1 x Magnolia - Reduce to previous points

    Granted Trees

  • 40 Downshire Hill London NW3 1NU

    2025/0983/T 0m away

    REAR GARDEN: 3 x Limes (T1 - T3) - Pollard back to previous points of reduction.

    Granted Trees

  • 40 Downshire Hill London NW3 1NU

    2015/3018/T 0m away

    REAR GARDEN: 2x Limes, reduce crowns by 30% to 4 metres.

    Granted Trees

  • 40 Downshire Hill London NW3 1NU

    2020/2813/P 0m away

    Erection of a single storey rear extension and the provision of new front lightwell stair, together with internal alterations including enlargement of openings in lower ground floor rear room wall.

    Granted Full applications Extension
    Small domestic

In Camden

  • 2026/0825/L Granted

    88 Frognal London NW3 6XB

    Discharge of condition 4 (a) Plan, elevation and section drawings of all new internal doors at a scale of 1:10 with typical moulding and architrave details at a scale of 1:1. b) Plan, elevation and section drawings, including jambs, head and cill, of all new windows and doors, including garage doors and windows, at a scale of 1:10 with typical glazing bar details at 1:1) 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)

    2 Mar 2026 Heritage and listed buildings
  • 2026/2946/L Awaiting decision

    Flat 1, 73 Eton Avenue London NW3 3EU

    Replacement of existing defective rear lean-to conservatory with a new slimline powder-coated aluminium framed conservatory with clear double glazing, on the exact same footprint as existing.

    3 Sep 2026 Heritage and listed buildings
  • 2026/3754/L Awaiting decision

    10 Great Ormond Street London Camden WC1N 3RB

    Coversion of 3 flats into 4 and internal alterations to the listed building

    2 Sep 2026 Heritage and listed buildings
  • 2026/2194/L Withdrawn

    Dunboyne Road Estate Dunboyne Road London NW3 2YY

    Installation of Air Source and Water Source Heat Pumps in basement car park with associated acoustic and security enclosures; installation of PV Panels on roof of Blocks 1, 2 and 3; removal of existing gas boilers and associated plant; installation of a new estate-wide heating network including Heat Interface Units, radiators, pipework and associated infrastructure to serve Flats 1-71; excavation of trenches and installation of below-ground heating, water and electrical infrastructure; and associated ancillary works.

    29 May 2026 Heritage and listed buildings
  • 2026/3773/L Awaiting decision

    47 Kelly Street London NW1 8PG

    Replacement of concrete roof tiles with slate roof tiles (Retrospective)

    28 Aug 2026 Heritage and listed buildings