18 Halsey Street, London, SW3 2QH Data via plota.co.uk

PP/25/05975 - Planning Permission Approved
Extensions & alterationsSolar & renewablesUtility infrastructure

Proposal

Erection of glazed enclosure on ground floor terrace. Installation of bore hole to feed ground source heat pump; air conditioning system; black cast iron stairs from ground floor to terrace; and new fenestration. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
16 Oct 2025
✓
Approved
27 Mar 2026

Approved on 27 Mar 2026 · Last checked 23 Oct 2026

Documents

View the documents on the council's website ↗

Site constraints 8

Grade II listed: 1-23, Halsey Street Sw3
List entry 1080659 · The pin is inside its outline · 21 more listed buildings within 150 m (5 Grade II*, 16 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 21 with distances
Historic England ↗
Chelsea 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 - 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 Named permitted development rights are withdrawn here.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.
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 ↗
National infrastructure project 693 m away: Thames Tideway Tunnel
The site is 693 m from the project boundary. Waste water treatment, decided. The project page says whether consent was granted. Also within 2 km: London Strategic Heat Main Project (at pre-application, 244 m).
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
Also on the record
Inside the Kensington and Chelsea 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 3 November 2026. 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 4

Last sold for £5,500,000 in October 2025. Terraced house, freehold.

23 October 2025£5,500,000
13 April 2018£4,600,000
24 July 2007£4,250,000
29 April 2005£1,750,000

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

Building

Floor area208 m² (2,239 sq ft)
Energy ratingD (64 out of 100), could reach B
PropertyMid-terrace house, 7 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in February 2016, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Other new applications on this street

5 Oct 2026Pending

15 Halsey Street, London, SW3 2QH

Alterations to the interior at ground and second floors

LB/26/05342
30 Sept 2026Approved

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25 Halsey Street, London, SW3 2PT

Prune 1 x London Plane (rear)

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Important details

Council
Kensington and Chelsea
Application type
Planning Permission
Postcode
SW3 2QH
Received
16 Oct 2025
Validated
16 Oct 2025
Ward
Brompton and Hans Town
Case officer
Show
Target decision
11 Dec 2025
Decision
Granted
Decision date
27 Mar 2026
Applicant
Show

How this decision compares

Decided in 162 days from validation, 84 days slower than Kensington and Chelsea's median of 78 for extensions. Approved, as 95% of extensions here are.

35%decided within 8 weeks
95%approved
1,595decided 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 →

Consultation & key dates

Comments by
14 Nov 2025

Historical activity at this location

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

This property

Previous applications at this address

2025 Approved
Erection of glazed enclosure on ground floor terrace. Installation of bore hole to feed g…
LB/25/05976
2018 Approved
Details required by conditions 3b (drawings - new extensions, materials & glazing) and 3c…
CON/18/08583
2018 Approved
Replacement of glazed extension at rear lower ground floor with glazed extension; interna…
LB/18/05269
2018 Approved
Replacement of glazed extension at rear lower ground floor with glazed extension; interna…
PP/18/05268
2018 Refused
Extension of rear closet wing into rear garden on all floors and extension over same at t…
LB/18/01012
2018 Approved
Erection of single storey addition to roof of rear closet wing
LB/18/01010
2018 Refused
Extension of rear closet wing into rear garden on all floors.
PP/18/01011
2018 Approved
Erection of single storey addition to rear closet wing
PP/18/01009
Within ~100m

Nearby activity

2025 Approved
28 Moore Street, London, SW3 2QW
Remove 1x Cotoneaster
ARB/25/06489
2025 Approved
22 Halsey Street, London, SW3 2QH
Prune 1 x London Plane (T1) in rear garden.
ARB/25/06148
2025
28 Moore Street, London, SW3 2QW
Erection of additional storey with roof mounted condenser units within acoustic enclosure…
PP/26/00038
2025 Approved
7 Halsey Street, London, SW3 2QH
Installation of condenser unit to front lightwell with acoustic attenuation enclosure bel…
PP/25/04059
2025 Approved
7 Halsey Street, London, SW3 2QH
Installation of condenser unit to front lightwell with acoustic attenuation enclosure bel…
LB/25/04060
2025 Approved
1 Moore Street, London, SW3 2QN
Installation of PV solar panels to existing flat roof.
PA/25/05116
2025 Refused
1 Halsey Street, London, SW3 2QH
Ground and first floor closet wing extension to increase the depth of the existing closet…
PP/25/03289
2025 Refused
1 Halsey Street, London, SW3 2QH
Ground and first floor closet wing extension to increase the depth of the existing closet…
LB/25/03290
2025 Approved
7 Halsey Street, London, SW3 2QH
Variation of condition 2 (approved drawings) of planning permission 24/08487 to allow cha…
PP/25/03276
2025 Approved
7 Halsey Street, London, SW3 2QH
Variation of condition 2 (approved drawings) of listed building consent 24/08488 to allow…
LB/25/03218
2025 Approved
10 St Catherine's Mews, London, SW3 2PX
Change of use to convert 3-bedroom dwelling to office and residential use above.
PP/25/01817
2025 Approved
38 Rawlings Street, London, SW3 2LS
Installation of 1no. air source heat pump in the front lightwell of the property
PP/25/03527
2025 Approved
16 Lennox Gardens Mews, London, SW1X 0DP
Excavation to form single storey basement level under existing footprint, including intro…
PP/25/02352
2025 Approved
34 Moore Street, London, SW3 2QW
Erection of single storey rear extension with terrace above with associated alterations t…
PP/25/02826
2025 Approved
1 Halsey Street, London, SW3 2QH
Refurbishment of property comprising installation of AC units in principal rooms; like fo…
PP/25/01234
2025 Approved
1 Halsey Street, London, SW3 2QH
Refurbishment of property comprising installation of AC units in principal rooms; like fo…
LB/25/01235
2025 Approved
7 Halsey Street, London, SW3 2QH
Installation of air bricks to rear elevation, alterations to lower ground floor and vault…
LB/25/01671
2025 Withdrawn
7 Halsey Street, London, SW3 2QH
Installation of air conditioning condenser unit to front lightwell with associated attenu…
PP/25/01670
2025 Withdrawn
6 Moore Street, London, SW3 2QN
Erection of rear extension of 1.5m on ground floor over lower ground floor rear addition…
PP/25/00606
2025 Withdrawn
34 Moore Street, LONDON, SW3 2QW
Erection of a single storey rear extension with terrace above with associated alterations…
PP/25/00148
2020 Withdrawn
33 Halsey Street, LONDON, SW3 2PT
Internal and external alterations, including replacement of the rear conservatory
PP/20/01592
2020 Withdrawn
33 Halsey Street, LONDON, SW3 2PT
Internal and external alterations, including replacement of the rear conservatory.
LB/20/01593
2020 Approved
29 Halsey Street, LONDON, SW3 2PT
Four-storey extension to rear closet wing; replacement two-storey infill extension to rea…
LB/20/02162
2020 Approved
29 Halsey Street, LONDON, SW3 2PT
Four-storey extension to rear closet wing; replacement two-storey infill extension to rea…
PP/20/02161
2020 Withdrawn
18 Milner Street, London, SW3 2PU
Erection of extensions at lower ground and ground floors, creation of set back terrace to…
PP/20/02210
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.

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

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.