9 Addison Avenue, London, W11 4QS Data via plota.co.uk

Consultation PP/26/05371
Extensions & alterations
Council
Kensington and Chelsea 5.1/10
Date received
6 Oct 2026
Date validated
6 Oct 2026
Postcode
W11 4QS

Description

First and second floor rear extension, and third floor roof extension Data via plota.co.uk

Get alerts nearby Council site ↗

Last checked

Decision outlook

Plota predicts a decision between 8 Dec 2026 and 20 Jan 2027, from Kensington and Chelsea's recent extensions.

Day 3 of the 56-day target. Kensington and Chelsea usually decides extensions by day 83.

Day 380 days to the predicted decision (day 83)
33%decided within 8 weeks
96%approved
1,421decided in the last year

Plota live figures for extensions decided by Kensington and Chelsea in the last twelve months, from validation. Kensington and Chelsea decision record →

Site constraints 9

Norland 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 ↗
2 Article 4 directions
Article 4 - No 96 · Article 4 - No 100. Named permitted development rights are withdrawn here.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.
Tree preservation order
Consent is needed before work on protected trees.
Not every council has published its orders as open data, so no order shown is not proof there is none.
Archaeological priority area
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
Air quality management area: Kensington and Chelsea 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 ↗
8 listed buildings within 150 m of the postcode pin
Nearest: 170-178, Holland Park Avenue W11, Grade II*, about 23 m from the postcode pin · 3 Grade II*, 5 Grade II
The site itself is not listed. 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 all 8 with distances
Historic England ↗
Also on the record
National infrastructure project about 1614 m away: Thames Tideway Tunnel; Inside the Kensington and Chelsea built-up area; Public transport access: PTAL 6a (excellent), 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 8 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, 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 2

Last sold for £2,100,000 in July 2007. Terraced house, freehold.

16 July 2007£2,100,000
16 January 2006£1,480,000

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

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6 Oct 2026Pending

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CON/26/05308
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1 St James's Gardens, London, W11 4RB

Prune 1 x Weeping Silver Birch (rear)

ARB/26/05343
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Historical activity at this location

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

This property

Previous applications at this address

2025 Approved
Roof extension and terrace, including balcony railings to front first floor window openin…
PP/25/01573
2022 Approved
Construction of roof extension and roof terrace
PP/22/02162
2018 Approved
Construction of a roof extension and terrace
PP/18/07224
2018 Withdrawn
Construction of roof extension
PP/18/05526
2018 Approved
FELL 1 x Acacia (rear)
ARB/18/00730
2017 Approved
Prune 1 x Acacia (rear)
ARB/17/05427
Within ~100m

Nearby activity

2025 Approved
Flat 2, 21 Holland Park Gardens, London, W14 8DZ
Prune 1 x Lime and 1 x London Plane (front)
ARB/25/06289
2025
20 Addison Avenue, London, W11 4QR
Demolition of outrigger and erection of replacement outrigger with a hipped roof and roof…
PP/25/06666
2025 Approved
22 Addison Avenue, London, W11 4QR
Alteration to exisitng side and rear roof dormer and roof lights.
PP/25/05501
2025 Approved
23 Addison Avenue, London, W11 4QS
Prune 2x Irish Yew (Taxus baccata 'Fastigata') in rear garden
ARB/25/05697
2025 Approved
22 Addison Avenue, London, W11 4QR
Installation of one external air condensing unit in rear garden of property.
PP/25/04677
2025 Approved
17 Addison Avenue, London, W11 4QS
FELL 1x Magnolia at front
ARB/25/05052
2025 Decided
34 Addison Avenue, London, W11 4QR
Prune 1 x Walnut (rear)
ARB/25/04563
2025 Approved
Unit A and Unit B, 21 Holland Park Gardens, London, W14 8DZ
Verfication Order required to confirm the change of description, following the change of…
SNN/25/03750
2025 Approved
Second Floor Flat, 15 Royal Crescent, London, W11 4SL
Refurbishment of existing window sashes.
LB/25/02270
2025 Approved
8 Queensdale Walk, London, W11 4QQ
Installation of air source heat pump in rear garden
PP/25/01715
2025 Approved
20 Addison Avenue, London, W11 4QR
Demolition and reinstatement of existing flank wall.
PP/25/02367
2025 Decided
24 Addison Avenue, LONDON, W11 4QR
Prune 2x Lime at rear
ARB/25/00642
2025 Approved
36 Addison Avenue, LONDON, W11 4QR
FELL 1x Plum, prune 1x Magnolia and 1x Bay at rear
ARB/25/00612
2024 Approved
Flat B, 12 Royal Crescent, London, W11 4SL
Internal alterations and refurbishment works at 1st floor flat
LB/24/06880
2024 Approved
22 Addison Avenue, London, W11 4QR
Excavation and provision of a basement extension featuring front and rear light wells; Si…
PP/24/07544
2024 Approved
8 Queensdale Walk, LONDON, W11 4QQ
Paint front elevation of dwelling.
PP/24/06816
2024 Approved
33 Addison Avenue, London, W11 4QS
Verification Order required to confirm the numbering and description of the property as a…
SNN/24/08129
2024 Approved
36 Addison Avenue, LONDON, W11 4QR
Renewal of limestone paving to front area and entrance steps. Repositioning of stairs dow…
PP/24/06211
2024 Refused
1 Queensdale Walk, LONDON, W11 4QQ
Single storey ground floor rear infill extension with roof light and green roof, alterati…
PP/24/06083
2024 Approved
8 Queensdale Walk, LONDON, W11 4QQ
Variation of condition 2 (approved drawings) of planning permission 22/07746 to remove un…
PP/24/03450
2016 Withdrawn
Flat 2, 172 Holland Park Avenue, LONDON, W11 4UH
Creation of a garden room in the rear garden ***WITHDRAWN***
PP/16/03414
2016 Withdrawn
Flat 2, 172 Holland Park Avenue, LONDON, W11 4UH
Replacement of rear external stone landing and staircase from ground floor to garden leve…
LB/16/03410
2016 Approved
178 Holland Park Avenue, LONDON, W11 4UH
Internal alterations
LB/16/03688
2016 Withdrawn
Flat A, 12 Royal Crescent, LONDON, W11 4SL
Interior alterations and refurbishment with new rear extension***WITHDRAWN***
PP/16/03347
2016 Withdrawn
Flat A, 12 Royal Crescent, LONDON, W11 4SL
Interior alterations and refurbishment with new rear extension ***WITHDRAWN***
LB/16/03348
Kensington and Chelsea
Planning Authority Score
5.1/10
Average
#144 of 296 councils
Relevant to this application:
Householder decisions

Kensington and Chelsea ranks #174 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (94%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Kensington and Chelsea decision statistics
Based on MHCLG data, the nine months to December 2025
93%
Overall approval rate
Above avg (87%) #58 of 296
94%
Householder approved
Above avg (90%) #110 of 296
61%
Decided in 8 weeks
Below avg (63%) #174 of 296
40%
Extended time limit
Below avg (41%) #152 of 296
94%
Minor dwellings approved
455 decided (1-9 homes)
87%
Change of use approved
53 decided
1,839
Total decisions
135 refused in the nine months to December 2025
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.