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Planning application

42 Mornington Terrace London NW1 7RT

Granted Camden 2026/2468/L Approval of Details (Listed Building)

Works: New dwelling Several homes

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

Relates to 2025/5117/L

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

Proposal

Details pursuant to condition 4 (staircase) of planning permission 2025/5117/L dated 19/12/2025 for ‘Amalgamation of two flats to create single dwellinghouse. Reinstatement of staircase between basement and ground floor.’

As published by the council, reference 2026/2468/L

Application record

Reference
2026/2468/L
Type
Approval of Details (Listed Building)
Status
Final Decision
Decision
Granted
Received
12 Jun 2026
Validated
16 Jun 2026
Decided
27 Jul 2026
Ward
Regents Park
Decision by
Delegated
Postcode
NW1 7RT

Site history

Applications at this address on the Camden register

This site has had 16 applications since 2015: 15 approved, 0 refused.

  • 2026/3735/T Awaiting decision

    42 Mornington Terrace London NW1 7RT

    FRONT GARDEN: 1 x Magnolia (Magnolia spp.) (T1) - Remove vigorous upright water shoots/epicormic growth throughout the crown, cutting back to their points of origin. Selectively crown-thin by no more than 10%, removing congested, crossing, rubbing and inward-growing secondary growth. Retain the tree's natural form and existing height and spread. No pruning cuts exceeding 50mm diameter.

    Submitted 1 Sep 2026 Trees
  • 2026/0128/T Granted

    42 Mornington Terrace London NW1 7RT

    FRONT GARDEN: 1 Magnolia (Magnolia spp.) (T1) - Fell to ground level. REAR GARDEN: 1 x Bay (Laurus nobilis) (T2) - Fell to ground level.

    Decided 10 Feb 2026 Trees
  • 2025/2503/T Granted

    42 Mornington Terrace London NW1 7RT

    FRONT GARDEN: 2 x Magnolia (Magnolia spp) (T1) - Reduce all round back to previous reduction points, approx. 1m leaving furnishing growth. Remove low small limb on back tree.

    Decided 11 Jul 2025 Trees
  • 2023/2696/T Granted

    42 Mornington Terrace London NW1 7RT

    FRONT GARDEN: 2 x Magnolias (Magnolia spp) (T1) - Reduce all round back to previous reduction points approx. 1m leaving furnishing growth.

    Decided 27 Jul 2023 Trees
  • 2021/5021/L Granted

    42 Mornington Terrace London NW1 7RT

    Installation of one temporary mechanical ventilation unit to the front of the property at third floor level for noise mitigation during construction of the HS2 railway.

    Decided 29 Nov 2021 Heritage and listed buildings
  • 2021/3571/T Granted

    42 Mornington Terrace London NW1 7RT

    FRONT GARDEN: 2 x Magnolias (Magnolia spp) (T1) - Reduce all round back to previous reduction points approx. 2m - 3m leaving furnishing growth. Remove lowest small branch over hanging stairway.

    Decided 25 Aug 2021 Trees
  • 2021/2190/L Granted

    42 Mornington Terrace London NW1 7RT

    Installation of temporary internal secondary glazing to eight windows and four mechanical ventilation units to the front of the property at all floors for noise mitigation during construction of the HS2 railway at Euston.

    Decided 17 Jun 2021 Heritage and listed buildings
  • 2019/0035/T Granted

    42 Mornington Terrace London NW1 7RT

    REAR GARDEN: 1 x Bay (T1) - Prune to tidy crown by removing 30 - 50cm. FRONT GARDEN: 2 x Magnolia (T2) - Re-reduce all aspects of crown back to previous points 1-15m and reduce public footway overhang to contain crown within property boundary 0.5m

    Decided 18 Jan 2019 Trees
  • 2017/1509/T Granted

    42 Mornington Terrace London NW1 7RT

    REAR GARDEN: 1 x Bay (Laurus nobilis) - To reduce all round 0.5 - 0.75m. 2 x Magnolia (Magnolia spp) - To reduce both trees back to the previous points of reduction.

    Decided 26 Apr 2017 Trees
  • 2016/1253/P Granted

    42 Mornington Terrace London NW1 7RT

    Installation of railings and gates on front boundary, repair side railings between nos.42 & 43, and replace guard rail between nos.41 & 42 with railings.

    Decided 11 Apr 2016 Full applications

Timeline

Dates from the published record

  1. 12 Jun 2026

    Received by Camden

  2. 16 Jun 2026

    Validated

    Checked as complete and ready for consideration.

  3. 24 Jul 2026

    Added to PlanIndex

  4. 27 Jul 2026

    Decision issued: Granted

Cases linked to this one on the register

  • 2025/5117/L Granted

    42 & Flat 42A Mornington Terrace London NW1 7RT

    Amalgamation of two flats to create single dwellinghouse. Reinstatement of staircase between basement and ground floor.

    Decided 19 Dec 2025 Heritage and listed buildings

Documents

Plans, drawings, consultee responses and the officer's report

3 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Watch members (£5 a month) open the document list from here.

Open the documents

What this grant of permission means

Camden granted permission on 27 July 2026, 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

  • 42 Mornington Terrace London NW1 7RT

    2015/3107/L 0m away

    Replacement of existing window and door and replacement of external staircase, at rear ground floor level.

    Granted Heritage and listed buildings Windows or glazing

  • 5 Lyndhurst Gardens London NW3 5NS

    2017/1500/T 0m away

    REAR GARDEN: 7 x - 1 Row - Leyland Cypress - (Chaemcyparis x leylandii) -reduce height by 50%(3m) 2 x Apple - Reduce all new growth by 25%. 1 x - Bay (Laurus nobilus) - -Trim back to neat rounded shape for regular maintenance.

    Granted Trees

  • 42 Mornington Terrace London NW1 7RT

    2021/2190/L 0m away

    Installation of temporary internal secondary glazing to eight windows and four mechanical ventilation units to the front of the property at all floors for noise mitigation during construction of the HS2 railway at Euston.

    Granted Heritage and listed buildings Windows or glazing

  • 42 Mornington Terrace London NW1 7RT

    2025/2503/T 0m away

    FRONT GARDEN: 2 x Magnolia (Magnolia spp) (T1) - Reduce all round back to previous reduction points, approx. 1m leaving furnishing growth. Remove low small limb on back tree.

    Granted Trees

  • 42 Mornington Terrace London NW1 7RT

    2015/5310/T 0m away

    FRONT GARDEN: 2 x Magnolia - Reduce height and lateral spread by 1.5m

    Granted Trees

  • 42 & Flat 42A Mornington Terrace London NW1 7RT

    2025/4917/P Submitted 12 Nov 2025 0m away

    Amalgamation of two flats to create single dwellinghouse.

    Granted Full applications New dwelling 10 docs
    Several homes

In Camden

  • 2026/3332/L Granted

    82 Hampstead High Street London Camden NW3 1RE

    Replacement chimney pots & chimney repairs.

    Received 5 Aug, published by the council 15 Aug 2026 Heritage and listed buildings
  • 2026/3162/L Granted

    48 Monmouth Street London WC2H 9EP

    Repainting works to shopfront and projecting sign bracket and display of 1 x non-illuminated fascia sign and 1 x non-illuminated replacement projecting sign.

    Received 27 Jul, published by the council 2 Aug 2026 Heritage and listed buildings
  • 2026/3964/L Awaiting decision

    3 Gainsborough Gardens London NW3 1BJ

    Reorganisation of the front garden

    Received 14 Sep, published by the council 17 Sep 2026 Heritage and listed buildings
  • 2026/3052/L Refused

    128 St Pancras Way London NW1 9NB

    Erection of rear extension and internal alterations.

    Received 17 Jul, published by the council 28 Jul 2026 Heritage and listed buildings
  • 2026/3142/L Granted

    The British Museum Great Russell Street London WC1B 3DG

    Installation of metal gate in place of approved replacement brick wall on northern boundary between nos. 11 Montague Street & 43 Russell Square.

    Received 24 Jul, published by the council 15 Aug 2026 Heritage and listed buildings