House alterations and basement at 40 Portland Road, Kensington, London W11

Summary of planning committee decision

Decided by Kensington And Chelsea Planning Applications Committee on 6 Oct 2026.

PP/26/03172Approved

The site and its setting

The property is a three-storey terraced house on Portland Road in the Norland Conservation Area and is not listed.

“/PP/26/03172:2 It is recommended the Committee grants planning permission with the conditions listed in Section 8 of this report. 2.Reason for committee consideration • Three or more objections were received during the consultation period and the recommendation is to grant. • At the request of Councillor Stephanie Petit 3.The site and its surroundings 3.1 40 Portland Road is a three-storey terraced property located on the eastern side of Portland Road.”

Officer report

Earlier planning history

An application for a second-floor infill side extension was granted in 2007.

“The relevant planning history is set out below: ReferenceDescriptionDecision PP/06/03151Erection of a second-floor infill side extension. Granted (05.02.2007) 5.Main policies and strategies relevant to the decision The development plan 5.1The main planning considerations applying to the site and the associated policies are: Local PlanNorland Neighbourhood Plan…”

Officer report

Why officers recommended approval

Officers considered the design sympathetic, the basement compliant, and impacts on the conservation area, neighbours, drainage and highways acceptable with conditions.

“/PP/26/03172:1 THE ROYAL BOROUGH OF KENSINGTON AND CHELSEA PLANNING APPLICATIONS COMMITTEE 06/10/2026 REPORT BY THE DIRECTOR, PLANNING AND PLACE Application: PP/26/03172 Agenda Item: N079 Address:40 Portland Road, LONDON, W11 4LG Proposal: Proposed part demolition; alterations to two-storey rear outrigger; new basement; lower ground floor rear extension; rear wall and side infill extensions; roof alterations with new rear rooflights; new boundary treatment works; and various…”

“The Council's Flood Risk Officer has reviewed the proposal and raises no objection, and conditions will secure appropriate drainage and construction management measures. 1.3The proposal would not result in unacceptable impacts on neighbouring residential amenity in terms of outlook, daylight, sunlight, privacy or sense of enclosure.”

Officer report

Consultation responses

Transport, flooding, contamination and arboricultural consultees raised no objection subject to conditions, while environmental health recommended construction controls.

“Other consultees and organisations ConsulteeComment Where in the report this is considered Director of Transportation and Highways No objection, subject to condition6.31 – 6.33 Flooding Officer No objection, subject to compliance condition 6.3 Director of Environmental Health (Land contamination) No objection, subject to condition6.4 Director of Environmental Health (Air quality) No objection, recommend pre-commencement condition for Small Scale Dust Management Plan.”

Officer report

The committee’s decision

Permission was granted in accordance with the recommendation, subject to an additional condition requiring approved facing materials and samples.

“Details GRANTED, in accordance with the recommendation, subject to new additional condition and informative.”

“Facing Materials and Sample Prior to the commencement of any above-ground works, details and samples of all external facing materials to be used in the development shall be submitted to and approved in writing by the Local Planning Authority.”

Minutes

Additional requirements

Before above-ground works, materials and brick sample panels must be approved, and the applicant is encouraged to keep neighbours informed during construction.

“The applicant is strongly encouraged to maintain regular communication with neighbouring residents and local residents’ associations throughout the construction period. Residents should be kept appropriately informed of the programme and timing of works, including any activities likely to result in additional noise, traffic or other disturbance.”

Minutes

Councillors at the meeting

Source: Plota analysis of the council's record of attendance; parties from the council's list of councillors.

Sources

  • Kensington And Chelsea Planning Applications Committee minutes, 6 October 2026
  • Agenda and papers (council website)

Source: Plota analysis of Kensington And Chelsea's committee minutes and officer report. Quotations are the council's own words; headings and summaries are Plota's.

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At the meeting

Date
Tuesday 6 October 2026
Recommendation
Officers recommended approval
Committee decided
Approved
Councillors
3Conservative 3Show councillors
Minutes
The council's minutes
Meeting
Agenda and papers (council website)

This committee's year

215 decisions in the 12 months to this meeting, 12 against officer advice.

Source: Plota analysis of the committee's minutes.

Every decision by this council's committees →