5 Mountfort Crescent, London, N1 1JW

This site has had 5 applications since 2023: 2 approved, 0 refused.

• P2026/1581/LBC Granted

  5 Mountfort Crescent, London, N1 1JW

  Erection of a replacement two-storey side extension, replacement of existing rear conservatory with bay window, replacement of existing roof lantern, removal of existing non-original water tanks and timber enclosure on roof, installation of 1no. air source heat pump with acoustic enclosure in rear garden, along with other associated internal alterations.

  Decided 21 Sep 2026 Heritage and listed buildings
• P2024/3431/LBC Withdrawn

  5 Mountfort Crescent, London, N1 1JW

  Erection of a single-storey rear extension to replace existing conservatory, erection of a single-storey side extension to replace existing lean-to, replacement of windows and insertion of new window openings, installation of new roof covering and a roof lantern, excavation of existing basement and installation of a ground source heat pump with associated internal and external alterations including replacement of mechanical, electrical and plumbing services. (A Planning Application ref. P2024/3430/FUL has also been submitted).

  Submitted 18 Nov 2024 Heritage and listed buildings
• P2024/3430/FUL Withdrawn

  5 Mountfort Crescent, London, N1 1JW

  Erection of a single-storey rear extension to replace existing conservatory, erection of a single-storey side extension to replace existing lean-to, replacement of windows and insertion of new window openings, installation of new roof covering and a roof lantern, excavation of existing basement and installation of a ground source heat pump with associated internal and external alterations including replacement of mechanical, electrical and plumbing services. (An application for Listed building Consent ref. P2024/3431/LBC has also been submitted).

  Submitted 18 Nov 2024 Full applications
• P2023/3418/LBC Withdrawn

  5 Mountfort Crescent, London, N1 1JW

  Demolition of the existing conservatory and erection of a replacement single-storey rear extension, replacement of side lean-to with a single-storey side extension, excavation and enlargement of the basement including the formation of a side and rear lightwell and installation of a Ground Source Heat Pump, re-roofing and installation of a triple glazed roof lantern and removal of rooftop water tank, replacement of windows and doors, and associated internal and external alterations (Full Planning Application ref. P2023/3381/FUL also submitted).

  Decided 30 Apr 2024 Heritage and listed buildings

1. 17 Jun 2026

   Received by Islington

2. 24 Jul 2026

   Added to PlanIndex

3. 21 Sep 2026

   Decision issued: Approve with conditions

• P2026/1581/LBC Granted

  5 Mountfort Crescent, London, N1 1JW

  Erection of a replacement two-storey side extension, replacement of existing rear conservatory with bay window, replacement of existing roof lantern, removal of existing non-original water tanks and timber enclosure on roof, installation of 1no. air source heat pump with acoustic enclosure in rear garden, along with other associated internal alterations.

  Decided 21 Sep 2026 Heritage and listed buildings

Islington granted permission on 21 September 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.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 5 Mountfort Crescent, London, N1 1JW

  P2026/1581/LBC Submitted 17 Jun 2026 50 yards away

  Erection of a replacement two-storey side extension, replacement of existing rear conservatory with bay window, replacement of existing roof lantern, removal of existing non-original water tanks and timber enclosure on roof, installation of 1no. air source heat pump with acoustic enclosure in rear garden, along with other associated internal alterations.

  Granted Heritage and listed buildings Extension Windows or glazing 52 docs

• 6, Mountfort Crescent, London, N1 1JW

  P2025/1501/TRE Submitted 23 May 2025 50 yards away

  99% historically approved · decision due ~30 Jul

  T1: Reduce lateral spread by no more than 1.5 meters on both neighbouring sides of the tree at the properties listed below: 14 Barnsbury Terrace, London N1 1JH 1 Mountfort Crescent, London N1 1JW All work will be carried out to British standards 3998 for tree work. Reason for works: Regular tree maintenance Allowing more light into neighbouring gardens and properties

  Decided Trees 6 docs

• 5 Mountfort Crescent, London, N1 1JW

  P2023/3418/LBC Submitted 23 Nov 2023 50 yards away

  Demolition of the existing conservatory and erection of a replacement single-storey rear extension, replacement of side lean-to with a single-storey side extension, excavation and enlargement of the basement including the formation of a side and rear lightwell and installation of a Ground Source Heat Pump, re-roofing and installation of a triple glazed roof lantern and removal of rooftop water tank, replacement of windows and doors, and associated internal and external alterations (Full Planning Application ref. P2023/3381/FUL also submitted).

  Withdrawn Heritage and listed buildings Extension Demolition +1 2 docs
  Small domestic

• 5 Mountfort Crescent, London, N1 1JW

  P2024/3431/LBC Submitted 18 Nov 2024 50 yards away

  93% historically approved · decision due ~29 Jan

  Erection of a single-storey rear extension to replace existing conservatory, erection of a single-storey side extension to replace existing lean-to, replacement of windows and insertion of new window openings, installation of new roof covering and a roof lantern, excavation of existing basement and installation of a ground source heat pump with associated internal and external alterations including replacement of mechanical, electrical and plumbing services. (A Planning Application ref. P2024/3430/FUL has also been submitted).

  Withdrawn Heritage and listed buildings Extension Roofing +1 18 docs
  Small domestic

• 5 Mountfort Crescent, London, N1 1JW

  P2024/3430/FUL Submitted 18 Nov 2024 50 yards away

  87% historically approved · decision due ~29 Jan

  Erection of a single-storey rear extension to replace existing conservatory, erection of a single-storey side extension to replace existing lean-to, replacement of windows and insertion of new window openings, installation of new roof covering and a roof lantern, excavation of existing basement and installation of a ground source heat pump with associated internal and external alterations including replacement of mechanical, electrical and plumbing services. (An application for Listed building Consent ref. P2024/3431/LBC has also been submitted).

  Withdrawn Full applications Extension Roofing +1 20 docs
  Small domestic

• 3 MOUNTFORT CRESCENT, LONDON, ISLINGTON, N1 1JW

  P2026/1592/LBC Submitted 17 Jun 2026 50 yards away

  Side Extension Underpinning and Render Repair Works.

  Granted Heritage and listed buildings Extension 8 docs

• P2026/2615/FUL Awaiting decision

  23 Framfield Road, London, N5 1UU

  Erection of outrigger dormer extension and all associated works.

  Received 2 Oct, published by the council 11 Oct 2026 Householder
• P2026/2593/FUL Awaiting decision

  1 Wyatt Road, London, N5 2JU

  Erection of mansard roof extension.

  Received 1 Oct, published by the council 2 Oct 2026 Householder
• P2026/2124/FUL Granted

  13 Willow Bridge Road, London, N1 2LB

  Installation of mechanical plant comprising air source heat pumps and an air han

  Received 7 Aug, published by the council 19 Aug 2026 Householder
• P2026/0821/FUL Granted

  32 Harberton Road, London, N19 3JR

  Retention of 1x bike store and 1x bin store within front garden

  Received 26 Mar, published by the council 25 Jul 2026 Householder
• P2026/2571/FUL Awaiting decision

  3 Sotheby Road, London, N5 2UP

  Proposed replacement front boundary wall with railings, front garden alterations to enlarge lightwell, cycle and refuse storage and refurbished stone front steps.

  Received 29 Sep, published by the council 11 Oct 2026 Householder