Abercorn School 28 Abercorn Place NW8 9XP Data via plota.co.uk

25/05133/NMA - Non-material amendments Approved

Proposal

Amendments to planning permission dated 8th May 2025 (RN ) for the Internal and external refurbishment to facilitate the reversion to and use for a single dwellinghouse, comprising: installation of a new dormer window to front elevation; installation of a dormer window to the west elevation at third floor; replacement of windows throughout; removal of non-original external fire escape staircase to rear facade and installation of a balcony to the rear facade a ground and first floor level and a new external staircase to access the garden from lower ground level; rationalising the rear facade (removal of exposed cabling, replacement of rainwater goods); installation of a lift within the original closet wing with lift overrun; removal of non-original partitions and openings, addition of new partitions, and infill of redundant openings throughout; creation of new opening within existing fabric at ground floor and replacement with doors; repairs, enhancements and redecoration throughout including to fireplaces and doors; removal of non-permeable hard surfaces in front and rear gardens and addition of new planting and terraces; pruning of the existing trees to the front of the property; and other relevant alterations. NAMELY, for the removal of condition 10. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
23 Jul 2025
✓
Approved
31 Jul 2025

Approved on 31 Jul 2025 · Delegated Decision · Last checked 30 Oct 2026

Documents 8

Decision & officer reports 2

PDF GRANT NON MATERIAL AMENDMENT Decision Notice · 31 Jul 2025 View ↗ PDF DELEGATED REPORT Report · 31 Jul 2025 View ↗

Application forms 2

PDF APPLICATIONFORMREDACTED Application Form · 23 Jul 2025 View ↗ PDF FEECALCULATION Background Papers · 23 Jul 2025 View ↗

Other documents 4

PDF RECEIPT OF APPLICATION Other · 30 Jul 2025 View ↗ PDF ACK - NON-MATERIAL AMENDMENT Background Papers · 30 Jul 2025 View ↗ PDF ATTACHMENTSUMMARY Background Papers · 23 Jul 2025 View ↗ PDF NMA LETTER - COCP CONDITION REMOVAL 21-07-25 Background Papers · 23 Jul 2025 View ↗

All documents on the council site ↗

Site constraints 7

Grade II listed: Abbotsfield
List entry 1357149 · The pin is inside its outline · 15 more listed buildings within 150 m (14 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 15 with distances
Historic England ↗
St John's Wood 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.
Council document ↗
Article 4 direction
Article 4 Basement Development Permitted Rights Removed. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Air quality management area: Westminster 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.
Council record ↗
Also on the record
Protected tree 14 m away: STM14_T7, order STM14; Inside the City of Westminster built-up area; Public transport access: PTAL 5 (very good), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 1 November 2026. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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.

Sales history 1

Last sold for £6,850,000 in September 2024. Other property, freehold.

30 September 2024£6,850,000Recorded as a transfer outside a standard sale

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

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Important details

Council
Westminster
Application type
Non-material amendments
Postcode
NW8 9XP
Received
23 Jul 2025
Validated
23 Jul 2025
Ward
Abbey Road
Case officer
Show
Target decision
20 Aug 2025
Decision
Application Permitted
Decision date
31 Jul 2025
Decision level
Delegated Decision
Applicant
Show
Agent
Lichfields
Freehold owner
Show

How this decision compares

Decided in 8 days from validation, 47 days faster than Westminster's median of 55 for amendments. Approved, as 91% of amendments here are.

53%decided within 8 weeks
91%approved
462decided in the last year

Plota live figures for amendments decided by Westminster in the last twelve months, from validation. Westminster decision record →

Public comments

No public comments yet.

Last counted 30 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14198912
Planning Portal ref
PP-14198912
Env. assessment
No

Historical activity at this location

30 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025 Approved
Details of a method statement explaining the measures you will take to protect the trees…
25/05366/ADFULL
2025 Approved
Details of a desktop study, details of a site investigation and details of a remediation…
25/05655/ADFULL
2025
1 x plum (T1, front): Reduce by up to 1.5 meters in height and 1.5 meters in radial sprea…
25/06518/TCA
2025 Approved
Detailed drawings at a scale of 1:10 with full size sections through the frames and glazi…
25/03864/ADFULL
2025 Approved
Detailed drawings at a scale of 1:10 with full size sections through the frames and glazi…
25/03865/ADLBC
Within ~100m

Nearby activity

2025
13 Abercorn Place NW8 9EA
1 x dead Himalayan birch - fell
25/08168/TDD
2025 Approved
17 Abbey Gardens London NW8 9AS
External alterations including replacement of non-original windows with slimline double-g…
25/02967/FULL
2025
12 Abercorn Place NW8 9XP
Installation of replacement two windows to front and rear elevation to Flat 3 at third fl…
25/07717/LBC
2025
12 Abercorn Place NW8 9XP
Installation of replacement two windows to front and rear elevation to Flat 3 at third fl…
25/07716/FULL
2025 Approved
19 Abbey Gardens London NW8 9AS
Redecoration of the stucco, sash windows and ironmongery to front and rear, with fixings…
25/06169/LBC
2025 Approved
16D Abercorn Place NW8 9XP
Remedial Works to the lower ground floor entrance including new raised roof, replacement…
25/06246/FULL
2025 Withdrawn
12 Abercorn Place NW8 9XP
Replacement of two windows to front elevation and two windows to rear elevation at third…
25/05370/FULL
2025 Withdrawn
12 Abercorn Place NW8 9XP
Replacement of two windows to front elevation and two windows to rear elevation at third…
25/05371/LBC
2025 Approved
Garden Flat 5 Hill Road London NW8 9QE
Erection of timber shed, greenhouse, pergola, and hard and soft landscaping works and tre…
25/04861/FULL
2025 Approved
Garden Flat 5 Hill Road London NW8 9QE
Replacement of trellis to boundary wall (Linked 25/04861/FULL)
25/04862/LBC
2025
27 Norfolk Road London NW8 6AU
T1- Sycamore tree (14m)- remove dead branches, prune back from street lamp to create 2m c…
25/06606/TPO
2025
5 Hill Road London NW8 9QE
Magnolia Prune back to most recent, previous reduction points, leaving shortened furnishi…
25/06432/TPO
2025
5 Hill Road London NW8 9QE
1 x Magnolia (front) : Prune back to most recent, previous reduction points, leaving shor…
25/06605/TCA
2025
16D Abercorn Place NW8 9XP
Proposed remedial works to the lower ground floor entrance at 16D Abercorn Place includin…
25/05451/LBC
2025 Approved
1A Hill Road London NW8 9QE
1 x Purple Plum (T1, front): Reduce height by 1.5-1.75m. Reduce spread by 1-1.25m. Crown…
25/04638/TCA
2025 Refused
12 Hill Road London NW8 9QG
Creation of bay window with Juliet balsutrade at first floor level at rear elevation.
25/03291/FULL
2025
St Marks Court Abercorn Place NW8 9AN
Variation of condition 1, 6, 7, 9, 11, 12, 16, 17, 18, and 19 of planning permission date…
25/04976/FULL
2025 Approved
33 Abbey Gardens City Of Westminster London NW8 9AS
Alterations to staircase between ground and first floor.
25/02926/LBC
2025 Approved
Adelaide Court Abbey Road City Of Westminster London NW8 9AE
T1 1 x London plane: crown reduce to previous, most recent reduction points.
25/04128/TPO
2025
11 Abbey Gardens City Of Westminster London NW8 9AS
Internal alterations; replacement ceilings; replacement floorboards; electrical re-wiring…
25/02553/LBC
2019 Approved
16D Abercorn Place London NW8 9XP
Erection of rear extension, works to front including the replacement of bin store, replac…
19/02557/FULL
2019 Approved
16D Abercorn Place London NW8 9XP
Erection of rear extension, works to front including the replacement of bin store, replac…
19/02718/LBC
2019 Approved
10 Abercorn Place London NW8 9XP
Replacement of existing timber framed door with new timber framed double doors. (Linked w…
19/03683/LBC
2019 Approved
10 Abercorn Place London NW8 9XP
Replacement of existing timber framed door with new timber framed double doors. (Linked w…
19/03755/FULL
2019 Approved
2 Hill Road London NW8 9QG
1 x lime: crown reduce to previous, most recent reduction points, retaining furnishing gr…
19/01401/TPO
Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Householder decisions

Westminster is slower than most councils at deciding householder applications, ranking #258 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Westminster is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.

One of the strictest councils
only 81% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Westminster decision statistics
Based on MHCLG data, the year to March 2026
86%
Overall approval rate
Below avg (87%) #201 of 296
81%
Householder approved
Below avg (90%) #277 of 296
44%
Decided in 8 weeks
Below avg (63%) #258 of 296
28%
Extended time limit
Below avg (41%) #46 of 296
83%
Minor dwellings approved
12 decided (1-9 homes)
67%
Major dwellings approved
3 decided (10+ homes)
81%
Change of use approved
133 decided
4,602
Total decisions
648 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

Freehold owner: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.