Party Wall Surveyor Kensington and Chelsea
Post a Party Wall job for a property in the Royal Borough of Kensington and Chelsea. The administrator reviews the complete enquiry and invites suitable qualified surveyors to provide independent quotes.
Post your Kensington and Chelsea Party Wall job — free
The council’s own plan points you to the Act
Planning documents rarely name the Party Wall etc. Act 1996, and rarer still do they explain what it is for. The adopted Kensington and Chelsea Local Plan does both, in a single sentence that is worth reading carefully before you commission anything.
Describing the construction method statement that must accompany a basement application, paragraph 6.113 states:
The structural stability of the development itself is not controlled through the planning system but through Building Regulations. The Party Wall Act is more suited to dealing with damage related issues.
That is the council drawing the boundary of its own jurisdiction. Three regimes cover three different questions: planning controls what may be built, Building Regulations control whether the building itself stands up, and the Act deals with damage to a neighbour and how the work affects their property.
An adjoining owner who complains to the council about cracking is usually talking to the wrong body. The plan says as much.
Paragraph 6.112 goes further and sets an order of operations:
Applicants wishing to undertake basements are strongly advised to discuss their proposals with neighbours and others, who will be affected, commence party wall negotiations and discuss their schemes with the Council before the planning application is submitted.
Party wall negotiations before the planning application, not after permission. That is unusual advice from a planning authority, and it reflects how long these matters take here.
What a basement application must carry
The Local Plan 2024 was adopted on 24 July 2024. Its Policy CD11, Basements, applies to all new basement development, defined as constructing or extending one or more storeys of accommodation below the prevailing ground level.
Two documents are required, and neither is a Basement Impact Assessment — that phrase appears nowhere in either the adopted plan or the borough’s basements guidance.
A construction method statement, which must report on ground and hydrological conditions including groundwater flow and demonstrate how excavation, demolition and construction, including temporary propping, can be carried out while safeguarding structural stability. The Basements Supplementary Planning Document, adopted 14 April 2016, requires that it
must be signed by a Chartered Civil Engineer (MICE) or Chartered Structural Engineer (MI Struct. E.), appointed by the applicant
and that it include a non-technical executive summary. The council may consult, at the applicant’s expense, an independent chartered structural engineer with expertise in historic structures where particularly vulnerable historic buildings may be affected.
A construction traffic management plan is also required in draft with the application, with a condition requiring the full plan where permission is granted.
One note on citations. The 2016 guidance was written for the previous plan and refers throughout to Policy CL7. The current policy is CD11, and its criteria (K) and (M) correspond to the guidance’s CL7(k) and CL7(m). The adopted plan still relies on the guidance, so both sets of references remain in circulation.
The fourteen requirements of Policy CD11
Policy CD11 lists requirements A to N. The ones most likely to affect a domestic scheme:
- not exceed 50 per cent of each garden or open part of the site, with the unaffected garden in a single area which where relevant should form a continuous area with neighbouring gardens;
- not comprise more than one storey, which the plan describes as one that cannot later be subdivided, generally about 3 to 4 metres floor to ceiling;
- not add further basement floors where a basement already has permission, is implemented, or was built under permitted development;
- not involve excavation underneath a listed building, including vaults;
- not cause loss, damage or long term threat to trees of townscape or amenity value;
- include a minimum of one metre of soil above any part of the basement beneath a garden;
- include a sustainable drainage system, retained thereafter;
- safeguard the structural stability of the existing building, nearby buildings and other infrastructure including London Underground tunnels and the highway; and
- be protected from sewer flooding by a suitable pumped device.
Exceptions to the garden and single-storey limits may be made on large sites. The extent of a basement is measured as gross external area.
The prohibition on excavating under a listed building, vaults included, is absolute in its terms and worth checking early. It is a different rule from the neighbouring borough’s, which permits limited excavation under the public highway subject to depth and cover limits.
No basement anywhere here is permitted development
A borough-wide Article 4 direction removes the right. The confirmed direction withdraws
Schedule 2 Part 1 Class A in so far as it relates to the enlargement, improvement or other alteration of a dwellinghouse by way of basement development, lightwells or any other development below the dwellinghouse or its curtilage
across “Land comprising the entire area of the Royal Borough of Kensington and Chelsea”.
It was made on 15 April 2015, confirmed on 2 March 2016, and came into force on 28 April 2016 — earlier than the comparable direction in Camden, which came into force on 1 June 2017.
Two thirds of the borough’s homes predate 1919
Kensington and Chelsea recorded 55,850 properties built before 1900 and 2,140 between 1900 and 1918, from a total of 89,250 as at 31 March 2025. Around two thirds of the borough’s dwellings predate 1919 — a higher proportion than any other borough covered on this site. These Valuation Office Agency counts are rounded to the nearest ten and count dwellings on the Council Tax list rather than households, so they do not share a denominator with the census figures below.
At Census 2021 the borough recorded 66,884 households:
- 37,911 in a purpose-built block of flats or tenement
- 15,720 in part of a converted or shared house, including bedsits
- 8,561 in a terraced house
- 2,064 in a semi-detached house
- 1,016 in a commercial building
- 771 in part of another converted building
- 767 in a detached house
More than four fifths live in a building shared with others, so the party structure is frequently a floor. The converted-house figure matters especially: fifteen thousand households live in subdivided houses, which is exactly where a floor separates two ownerships and where the original structure was never designed to.
The council states that nearly three quarters of the borough is protected by 38 separate conservation areas. Only 33 of those have an adopted modern appraisal; the remainder rely on older statements, so the documents available for a given area vary.
One caveat on planning volumes. The borough determined 574 householder decisions and 435 listed building consents to alter or extend in the year ending March 2026, but the published table carries a note recording that the council experienced a cyber attack in November 2025 which significantly impacted its systems, and that figures “may be lower as a result”. The size of any shortfall is not quantified, so these counts should not be compared with other years or other boroughs.
Explain the property and proposed work
Provide:
- the full property address;
- whether the property is a house, a purpose-built flat or a flat in a converted house;
- if a flat, which floors or ceilings are shared, and with whom;
- whether the property or the adjoining property is listed, and whether vaults are involved;
- whether a basement or lightwell is proposed or already exists, and the intended depth;
- whether you are carrying out work or responding to a neighbour’s work;
- a clear description of the proposed construction;
- whether a construction method statement has been prepared, and by whom;
- the freeholder and any leaseholder details, since more than one owner may need to be served;
- drawings where available;
- notices, responses and correspondence already exchanged; and
- known dates and access constraints.
The borough page covers the authority-wide controls. The separate guide for Party Wall surveyors for Kensington properties resolves the named Kensington conservation areas and the address checks that the broader borough page cannot.
Further address-led guidance covers Party Wall surveyors for Belgravia properties, Party Wall surveyors for Chelsea properties, Party Wall surveyors for Knightsbridge properties and Party Wall surveyors for Notting Hill properties. Belgravia and Knightsbridge cross the Westminster boundary, so their pages keep the two authorities’ material separate.
Compare the proposed appointment
Each quote should explain who would appoint the surveyor and the work included. That may involve reviewing drawings, notices, inspections, a schedule of condition, preparation of an award, liaison with another surveyor or later visits.
The party wall notice guide explains which notice applies to which work and how far ahead it must be served. The Party Wall surveyor guide explains when a surveyor may be needed, and the Party Wall surveyor cost guide explains the factors that can affect the proposed fee. Neighbouring coverage includes Party Wall surveyors for Westminster properties and the wider Party Wall surveyor west London guide.
What happens after you post
The administrator reviews each complete enquiry before deciding whether to invite suitable qualified surveyors. Before selection, any invited surveyor receives only the outward postcode and a restricted, non-identifying brief.
If a quote is received and passes the administrative-completeness check, it is shown in the authenticated customer portal with the surveyor’s private documentary profile. Availability varies, so a request may receive several quotes, one, or none. Submission does not guarantee an invitation, quote or introduction.
If the administrator makes an introduction, only that surveyor receives your full contact and property details. FindTheSurveyor charges neither party a fee. You pay the professional fee directly to the surveyor.