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
• P2026/1579/FUL 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 (Listed Building Consent P2026/1581/LBC also submitted)

  Decided 21 Sep 2026 Householder
• P2024/3431/LBC Withdrawn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
• P2023/3418/LBC Withdrawn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. 18 Nov 2024

   Received by Islington

2. 4 Dec 2024

   Validated

   Checked as complete and ready for consideration.

3. 25 Jul 2026

   Added to PlanIndex

• 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

1 later application on the register refers to this one:

• 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

The applicant withdrew this application before Islington decided it, and is free to submit a revised scheme at any time. More in our guide to what happens after a planning decision.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 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

  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

• 5 Mountfort Crescent, London, N1 1JW

  P2026/1579/FUL 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 (Listed Building Consent P2026/1581/LBC also submitted)

  Granted Householder Extension Windows or glazing 52 docs
  Small domestic

• 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

• 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

• P2025/2999/FUL Granted

  85 Charterhouse Street, London, EC1M 6HJ

  Change of Use from existing mixed use (restaurant/nightclub) Sui Generis Use Class to a Class E (Commercial) Use Class across the whole building. Additional works include the creation of a roof level terrace space and the refurbishment of an existing terrace at rear first floor level, new windows to the front and rear elevation, replacement of mechanical plant and machinery at roof level, refurbishment of façade and improvements to the existing entrance.

  Received 22 Oct, published by the council 25 Jul 2026 Full applications
• P2026/1382/FUL Granted

  7, Penn Road, London, N7 9RD

  Replacement of single-glazed windows and doors with double-glazed timber windows

  Received 14 Aug, published by the council 23 Aug 2026 Full applications
• P2026/2568/FUL Awaiting decision

  63, Mowatt Close, London, N19 3XZ

  Replacement of existing windows with double glazed UPVC windows

  5 Oct 2026 Full applications
• P2026/2595/FUL Awaiting decision

  Flat D, 44 Tufnell Park Road, London, N7 0DT

  Erection of a single-storey lower ground floor extension, together with internal alterations to convert the existing self-contained studio flat to a 1-bedroom, 2-person unit

  Received 2 Oct, published by the council 11 Oct 2026 Full applications
• P2026/2514/FUL Status unknown

  4-6 Baltic Street East, London, EC1Y 0UJ

  Replacement timber shopfronts, replacement double-glazed timber casement and sas

  Received 30 Sep, published by the council 1 Oct 2026 Full applications