20, Great Percy Street, London, WC1X 9QP Data via plota.co.uk
P2026/1918/LBC - Listed Building
VALIDATED
Proposal
Rear extension at ground floor rebuilt and extended, with rear lightwell infill at lower ground floor with associated external works and internal alterations. P2026/1917/FUL also submitted Data via plota.co.uk
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View original council record ↗Last checked
Application progress
✓
Received
17 Jul 2026
✓
Validated
23 Jul 2026
Decision
Expected by 10 Sept 2026
This application is under consideration - no decision has been issued yet. Plota predicts a decision around 24 Sept 2026, from Islington's recent demolitions.
Associated applications 2
- Listed buildingRear extension at ground floor rebuilt and extended, with rear lightwell infill at lower…This applicationP2026/1918/LBC
Site constraints 14
Article 4 directionCritical Drainage Group3_006CAZHeathrow Safeguarding AreaCentral Activities ZoneLocal view from Dartmouth Park HillNew RiverII
Grade II listed: Number 18a and 18-24 (Even) and Attached Railings
List entry 1195601 · 3 m from the pin · 26 more listed buildings within 150 m (1 Grade II*, 25 Grade II)
Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show the other 26 with distances
- 21 m26, Great Percy StreetGrade II
- 27 mNumbers 1 to 3 (Consecutive) and Attached RailingsGrade II
- 32 mNumbers 7 and 8 and Attached RailingsGrade II
- 38 m9, CUMBERLAND GARDENS (See details for further address information)Grade II
- 43 mNumbers 15-19 (Odd) and Attached RailingsGrade II
- 47 mRailings to Number 9 Cumberland GardensGrade II
- 53 mNumbers 21-39 (Odd) and Attached RailingsGrade II
- 53 mNumbers 28-54 (Even) and Attached RailingsGrade II
- 55 mNumbers 1-6 (Consecutive) With Attached Railings and Gate Attached to Number 1Grade II
- 72 mNumbers 4-15 (Consecutive) and Attached RailingsGrade II
- 78 mNumber 25 and Attached Railings Numbers 1 to 4 (Consecutive) and Attached RailingsGrade II
- 101 mNumbers 41a, 41-49 (Odd) and Attached RailingsGrade II
- 108 mNumbers 24 to 29 (Consecutive) and Attached RailingsGrade II
- 110 mNumber 12 and Attached RailingsGrade II
- 110 mNumbers 26 to 39 (Consecutive) and Attached RailingsGrade II
- 113 mLloyd House and Attached RailingsGrade II
- 115 mNumbers 5 to 24 (Consecutive) and Attached RailingsGrade II
- 118 mNumbers 14 to 23 (Consecutive) and Attached RailingsGrade II
- 121 mNumbers 9 and 10 and Attached RailingsGrade II
- 126 mBevin CourtGrade II*
- 128 mRailings Around Garden in Centre of Lloyd SquareGrade II
- 132 mNumbers 12-16 (Even) and Attached RailingsGrade II
- 139 mNumbers 3 to 6 (Consecutive) and Attached RailingsGrade II
- 144 mNumbers 40-43 (Consecutive) and Attached RailingsGrade II
- 146 mFormer Clerkenwell Magistrates Court and Attached RailingsGrade II
- 149 mNumbers 1-23 (Consecutive) and Attached RailingsGrade II
COA00000595 conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Air quality management area: Islington AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Central activities zone
The core of central London in the London Plan.
Offices, culture and the other strategic functions of the centre take priority over new housing here.
Article 4 directionCouncil record
Some permitted development rights are withdrawn. The direction is on the council's register but not published as open data.
Critical Drainage Group3_006Council record
Recorded by the council for this site.
CAZCouncil record
Recorded by the council for this site.
Heathrow Safeguarding AreaCouncil record
Recorded by the council for this site.
Central Activities ZoneCouncil record
Recorded by the council for this site.
Local view from Dartmouth Park HillCouncil record
Recorded by the council for this site.
New RiverCouncil record
Recorded by the council for this site.
IICouncil record
Recorded by the council for this site.
Also on the record
Inside the Islington built-up area; Designated open space 49 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site
Checked on 11 September 2026. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
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Important details
Decision outlook
Day 53 of the 56-day target. Islington usually decides demolitions by day 63.
Day 5310 days to the predicted decision (day 63)
38%decided within 8 weeks
88%approved
43decided in the last year
Plota live figures for demolitions decided by Islington in the last twelve months, from validation. Islington decision record →
Consultation & key dates
- Alt. reference
- PP-15091160_C
Historical activity at this location
29 previous applications on record - archival context, not part of the live application.
This property
Previous applications at this address
2025
Approved
Rear extension at ground floor rebuilt and extended, with rear lightwell infill at lower…
2025
Approved
Rear extension at ground floor rebuilt and extended, with rear lightwell infill at lower…
2023
Approved
Essential external structural remedial works to include the replacement of the stepped ac…
2023
Approved
Essential external structural remedial works to include the replacement of the stepped ac…
Within ~100m
Nearby activity
2025
Refused
5 Cumberland Gardens, London, WC1X 9AF
External and internal alterations, including lightwell enlargement, installation of heat…
2025
Refused
5 Cumberland Gardens, London, WC1X 9AF
External and internal alterations, including lightwell enlargement, heat pump, lime rende…
2025
5, Cumberland Gardens, London, WC1X 9AF
Replacement of existing timber windows and doors with new ultra-slimline double-glazed ti…
2025
5, Cumberland Gardens London, WC1X 9AF
Replacement of existing timber windows and doors with double-glazed timber systems (LBC a…
2025
Approved
23 Lloyd Baker Street, London, WC1X 9AZ
Internal and external repairs and reinstatements including brickwork repairs, external re…
2025
Approved
23 Lloyd Baker Street, London, WC1X 9AZ
Internal and external repairs and reinstatements including brickwork repairs, external re…
2025
34, Lloyd Baker Street, London, WC1X 9AB
Rear garden: Walnut T1 (14M high, 350mm dia.) - reduce the crown of the tree overall by u…
2025
39A, Amwell Street, London, EC1R 1UR
3m tall hawthorn in the back garden. Propose routine maintenance: reduce back to previous…
2025
30, Lloyd Baker Street, London, WC1X 9AB
Lime (16M high, 500mm dia.) - reduce the crown of the tree back to the most recent points…
2025
31, Amwell Street, London, EC1R 1UN
Removal of the existing lead and waterproofing to the front facade to expose the bressumm…
2024
Refused
8 Prideaux Place, London, WC1X 9PP
Erection of mansard roof extension. Erection of timber clad outbuilding to rear of site c…
2024
31, Amwell Street, London, EC1R 1UN
The tree ('T1') is located in the garden of 31 Amwell Street. T1 is a Bay tree: Laurus no…
2024
8, Prideaux Place, London, WC1X 9PP
Tree T2 as marked on the Tree Plan is to be removed. A previous arboricultural report was…
2023
Approved
8 Cumberland Gardens, London, WC1X 9AG
External refurbishment including redecoration, joinery repairs, renewal of slate roof cov…
2024
Approved
8 Prideaux Place, London, WC1X 9PP
Erection of timber clad outbuilding to rear of site curtilage. Insertion of new timber do…
2023
Approved
Archery Fields House, Wharton Street, London, WC1X 9PN
Side garden S/G - T7: Arbutus: Crown reduce by 1m to keep tree at a size suitable for its…
2023
Approved
34 Lloyd Baker Street, London, WC1X 9AB
Alterations including erection of a single-storey rear extension and lowering of internal…
2023
Approved
34 Lloyd Baker Street, London, WC1X 9AB
Alterations including erection of a single-storey rear extension and lowering of internal…
2023
Approved
8 Prideaux Place, London, WC1X 9PP
Rear garden R/G- T1: Cherry: Reduce back from building to give 2m clearance
2023
Withdrawn
Soley Mews Chapel 1 Soley Mews London WC1X 9QQ
Internal alterations including the installation of a mezzanine floor with associated stai…
2016
Approved
Community Gardens, Lloyd Square, London, WC1X
Trees subject to tree preservation order (TPO) - LBI TPO (NO.284) 2006 1 x Lime tree (284…
2016
Approved
28 Wharton Street, London, WC1X 9PJ
Rear garden: Fell 1 x Silver Birch tree (T3), 1 x Sorbus tree (T4) and 1 x Holly tree (T5…
2016
Refused
31 Wharton Street London WC1X 9PJ
Enlargement of existing roof extension and internal alterations at first and second floor…
2016
Approved
31 Wharton Street London WC1X 9PJ
Enlargement of existing roof extension and internal alterations at first and second floor…
2016
30 Lloyd Baker Street, London, WC1X 9AB
Rear garden: 1 x Lime tree (T1) - Reduce back to previous points of reduction whilst leav…
Islington
Planning Authority Score
2.9/10
Poor
#237 of 296 councils
Relevant to this application:
Other decisions
Islington is slower than most councils at deciding householder applications, ranking #260 out of 296. 53% of applications have the time limit extended, above the 41% national average. Householder applications are slightly more likely to be approved here (93%) than the national average (90%).
Slower than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application.
View full council performance
Islington decision statistics
Based on MHCLG data, the year to March 2026
89%
Overall approval rate
Above avg (87%) #132 of 296
93%
Householder approved
Above avg (90%) #130 of 296
43%
Decided in 8 weeks
Below avg (63%) #260 of 296
53%
Extended time limit
Above avg (41%) #241 of 296
89%
Minor dwellings approved
499 decided (1-9 homes)
100%
Major dwellings approved
1 decided (10+ homes)
89%
Change of use approved
19 decided
1,488
Total decisions
167 refused in the year to March 2026
Track this application
20, Great Percy Street, London, WC1X 9QP
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