Party Wall Surveyor Notting Hill

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Notting Hill does not identify one planning authority

The place name crosses a policy seam. RBKC’s adopted Pembridge Conservation Area Appraisal describes Pembridge on the Royal Borough’s eastern edge and records the Westminster conservation areas of Westbourne and Bayswater immediately to its north and east. Westminster has also designated a Notting Hill East neighbourhood area on its side of the borough boundary.

That makes a complete address check essential. An RBKC address is governed by the Royal Borough’s Local Plan, basement direction and property schedules. A Westminster address is governed by the Westminster development plan and Westminster directions. An estate description, W11 or W2 postcode, or proximity to Notting Hill Gate is not a legal boundary test.

The Kensington and Chelsea Party Wall guide covers the RBKC borough framework. The West London Party Wall guide provides the wider regional context. The authority changes the planning material; it does not alter the statutory wording of the Party Wall etc. Act 1996.

Separate adopted policy from the emerging Westminster plan

RBKC’s current Local Plan page records adoption of the Local Plan 2024 on 24 July 2024 and labels the 2019 plan superseded.

On the Westminster side, the current City Plan 2019–2040 was adopted on 21 January 2026. The submitted Notting Hill East Neighbourhood Plan is later in its process but not adopted. Westminster records that examination concluded on 22 May 2026, publishes the final examiner’s report, and says the plan will proceed to a referendum and will be made only if the statutory steps are completed. On 24 August 2026 it should be described as an examined emerging plan, not as part of the development plan.

This status distinction avoids two errors: applying an RBKC policy to a Westminster address, or treating a polished submission document as though it has already passed referendum and formal making.

Basement dimensions differ across the boundary

For an RBKC address, Local Plan Policy CD11 normally restricts a basement to one storey and to no more than 50 per cent of each garden or open part of the site. It requires at least one metre of soil over a garden basement and does not permit excavation underneath a listed building, including vaults. The one-storey and garden criteria contain stated large-site exceptions, so they should not be presented as absolute for every site.

The Royal Borough’s Basements SPD, adopted 14 April 2016, gives application guidance that remains on the council’s current SPD list. Paragraph 5.2 says the Construction Method Statement must be signed by the applicant’s Chartered Civil Engineer or Chartered Structural Engineer and should include a non-technical executive summary. An engineer’s planning document can inform a Party Wall brief, but it does not serve notice or settle a statutory dispute.

For a Westminster address, City Plan Policy 50 uses a different formulation. It supports basement development that does not extend beneath more than 50 per cent of the garden land. On a small site where the garden is eight metres or shorter at its longest point, it permits a basement to extend up to four metres from the original building in that direction. It also requires a proportionate undeveloped margin around the site boundary, ordinarily limits the basement to one storey below the lowest original floor level and requires one metre of soil plus a minimum 200-millimetre drainage layer. Large-site exceptions are stated for the storey limit.

Neither authority’s planning percentage is a substitute for section 6. A proposal can meet its local garden-extent policy and still require notice, or fail planning policy without engaging section 6.

Conservation and Article 4 checks must reach house-number level

RBKC’s current conservation directory, updated 27 July 2026, records adopted appraisals for Colville on 17 February 2015, Ladbroke on 15 October 2015, Pembridge on 30 January 2017 and Norland on 23 March 2020. These are separate mapped designations around Notting Hill, not interchangeable names for one conservation area.

RBKC’s borough-wide basement Article 4 direction was made on 15 April 2015 and came into force on 28 April 2016. The current Article 4 page says it applies throughout the Royal Borough to the specified basement permitted-development right for single dwellinghouses.

External-alteration controls are more granular. The council’s conservation-area Article 4 directory lists particular house numbers and different direction numbers on Ladbroke Grove, Ladbroke Road, Portobello Road, Pembridge Place, Chepstow Villas and other streets. Street name alone is insufficient.

Norland has an additional direction that came into force on 3 July 2013. It withdraws specified rights at scheduled properties for enlargement or alteration, garden buildings, hardstandings, boundary treatments and certain external painting. It does not apply every restriction to every Notting Hill property. Check the direction class, schedule and address.

Conservation status and Article 4 controls determine whether planning permission may be needed. They do not establish ownership of a wall, the position of the line of junction or the depth of an adjoining foundation.

Apply sections 1, 3 and 6 without shorthand

Section 1 applies where differently owned adjoining lands meet and the line of junction is unbuilt or occupied only by a boundary wall that is neither a party fence wall nor an external building wall. If an owner is about to build on any part of that line, at least one month’s notice is required. Without consent to build astride it, the statutory alternative is a wall wholly on the building owner’s land and at that owner’s expense.

Section 2 gives specified rights concerning party structures. Where section 3 requires notice of the proposed section 2 work, the normal lead time is at least two months. Section 3(3) does not prevent exercise of a section 2 right with the written consent of the adjoining owners and adjoining occupiers, and it does not require a party-structure notice before compliance with a statutory notice about a dangerous or neglected structure. Describing the project as a loft, refurbishment or rear extension does not decide whether a section 2 right is being exercised.

Section 6(1) is conjunctive. The building owner must propose to excavate, or excavate for and erect a building or structure, within three metres horizontally of any part of an adjoining owner’s building or structure and some part of the proposed excavation, building or structure within those three metres must extend lower than the bottom of the adjoining foundations. “Within three metres” on its own is incomplete.

Section 6(2) is a separate six-metre test. It asks whether any part of the proposed excavation, building or structure would meet a plane drawn downwards, in the direction of the building owner’s excavation, building or structure, at forty-five degrees to the horizontal. That plane begins at the line formed by the intersection of the horizontal plane at the bottom of the adjoining foundations with the plane of the external face of the adjoining building’s external wall.

Where section 6 applies, the building owner must serve notice at least one month before beginning to excavate, or to excavate for and erect a building or structure. The notice must include plans and sections showing the excavation’s site and depth and, where a building or structure is proposed, its site. The party wall notice guide keeps notice categories, response routes and lead times distinct.

Define the property interests as well as the work

Notting Hill instructions can concern terraces, mews houses, purpose-built flats, conversions or mixed-use buildings. Provide the complete address and confirmed authority, named conservation area, Article 4 entry and listed status. Identify the freeholder and relevant leaseholders; in a conversion or block, the potentially relevant structure may be a floor or ceiling rather than a side wall.

Add the existing and proposed drawings, sections through every excavation, dimensions to adjoining structures, known foundation information, boundary evidence, structural drawings and current method statement. Supply the notice, attachments, responses and delivery dates if any step has already been taken.

Keep unknown foundation depth as an uncertainty. Do not infer it from stucco, terrace age or a planning basement depth. The Party Wall surveyor cost guide explains how owners, drawings, inspection scope, schedules, award work and later visits can change the professional scope.

The Party Wall surveyor guide explains the appointment framework. FindTheSurveyor operates a neutral marketplace and does not carry out surveying work. If a quote is presented, compare the appointing owner, included inspections and documents, exclusions, VAT treatment and basis for further work. If the administrator makes a confirmed introduction, the professional appointment and payment terms are agreed directly with the selected surveyor.

Sources checked

The linked RBKC and Westminster plans, current policy-status pages, conservation and Article 4 records, and sections 1 to 3 and section 6 of the Party Wall etc. Act 1996 were checked on 24 August 2026. The Notting Hill East plan was not treated as made. Verify the exact address, current authority, designations and policy status before relying on them.