Planning application
P2026/1707/LBC
27 Arlington Square, London, N1 7DP
Proposal
Erection of single storey part-width rear extension and internal alterations at basement level (Full Planning application ref: P2026/1706/FUL also submitted)
As published by the council, reference P2026/1707/LBC
Timeline
Dates from the published record
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29 Jun 2026
Received by Islington
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24 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Islington for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About heritage and listed buildings applications
How this application type works
Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.
More on heritage and listed buildings applications in our guide
Nearby applications
Within 500 metres
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P2026/1706/FUL Awaiting decision
27 Arlington Square, London, N1 7DP
Erection of single storey part-width rear extension and internal alterations at basement level (Listed Building Consent ref: P2026/1707/LBC also submitted)
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P2024/2184/FUL Refused
29 Arlington Square, London, N1 7DP
Conversion of the existing building to create 2 residential units with a basement flat and upper flat (spanning between ground, first and second floor), external alterations including new front staircase, gate within existing railings, lower ground side door, removal of rear staircase, new rear window and french doors to rear elevations (Listed Building Consent also submitted Ref: P2024/2185/LBC).
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P2024/2185/LBC Refused
29 Arlington Square, London, N1 7DP
Conversion of the existing building to create 2 residential units with a basement flat and upper flat (spanning between ground, first and second floor), external alterations including new front staircase, gate within existing railings, lower ground side door, removal of rear staircase, new rear window and french doors to rear elevation, refurbishement and internal works (Full plan application Ref: P2024/2184/FUL has also been submitted).
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P2026/0322/NMA Decided
24 Arlington Square, London, N1 7DP
Non-material amendment of planning permission ref. P2025/0595/FUL, dated 28/07/2025, for Erection of a glazed rear infill extension with associated new landscaping to the rear garden; internal alterations; alterations to existing vaults. (Listed Building Consent ref: P2026/0536/LBC also submitted). It is proposed to make alterations to: Timber-framed glazing to the rear elevation. Introduction of a zinc clad parapet. Replacement of the glazed roof with a sedum/wildfower green roof. Installation of a single round roofight.
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P2026/0536/LBC Granted
24 Arlington Square, London, N1 7DP
Erection of a glazed rear infill extension with associated new landscaping to the rear garden; internal alterations; alterations to existing vaults. (Non-Material Amendments ref: P2026/0322/NMA also submitted).
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P2026/0529/FUL Awaiting decision
24, Arlington Square, London, N1 7DP
Replacement of the outrigger roof with a matching brick parapet and green roof; enlargement of the basement window; excavation to extend the rear patio; installation of new PV panels at roof level; and internal alterations. (Listed Building ref:P2026/0530/LBC also submitted).
Other heritage and listed buildings applications
In Islington
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P2026/1490/LBC Granted
15 Barnsbury Street, London, N1 1PW
Replacement of internal flat entrance doors, architraves and fanlights, installation of new fire alarm system, and replacement electrical cupboard.
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P2026/1838/COL Awaiting decision
18 - 20 St John Street, London, EC1M 4AY
Certificate of lawfulness for a proposed works to a listed building.
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P2026/1623/LBC Granted
16 Copenhagen Street, London
Replacement of internal flat entrance doors, architraves and fanlights, installation of new fire alarm system, and replacement of electrical cupboard.
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P2026/1625/LBC Granted
36 Barnsbury Road, London
Replacement of internal flat entrance doors, architraves and fanlights, installation of new fire alarm system, and replacement of electrical cupboard.
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P2026/1493/LBC Granted
40 Barnsbury Road, London, N1 0HD
Replacement of internal flat entrance doors, architraves and fanlights, installation of new fire alarm system, and replacement of electrical cupboard.