Common types of works that affected by the Party Wall Act.
Find out more about the Party Wall Act and process here.
If you’re planning building work in London—from a loft conversion in Islington to a rear extension in Wandsworth or basement excavation in Kensington & Chelsea—it’s important to understand how the Party Wall etc. Act 1996 applies. The Act sets out the legal steps for notifying adjoining owners, agreeing access, and protecting both properties before work begins.
Our guide explains the Party Wall process in London in plain English, including when you need to serve notices, what happens if a neighbour dissents, and how a Schedule of Condition and Party Wall Award can prevent delays and disputes. Use the link below to learn what to do next and how to keep your project moving smoothly across all London boroughs.
London postcode areas we cover include: E, EC, N, NW, SE, SW, W and WC, including nearby postcode districts such as E1, E2, E3, E5, E8, E14, EC1, EC2, EC3, EC4, N1, N4, N7, NW1, NW3, NW6, SE1, SE10, SE15, SE16, SW1, SW3, SW6, SW11, SW18, W1, W2, W6, W8, W11, W14, WC1 and WC2.
London home improvements often sit right up against a neighbour’s wall, boundary, or foundations. A Party Wall Surveyor helps you follow the Party Wall etc. Act correctly, reduce delays, and protect your property (and relationships) before work starts. From loft conversions and rear extensions to basement works and structural steel, getting the process right early can save weeks of back-and-forth later.
Why it matters in London
If you’re planning a loft conversion, extension, basement, or structural changes, a quick review of your drawings can confirm whether the Party Wall process applies and what steps to take next.
A party wall surveyor is a qualified professional who:
If your neighbour consents to the notice, you can proceed without much delay. But if they dissent (or don’t respond), a party wall surveyor is essential to move things forward legally and efficiently.
Accurate, compliant notices issued quickly to keep your project moving.
We handle neighbour queries professionally to reduce tension and delays.
Detailed photos and notes to protect both properties before work starts.
Sensible working methods and protections agreed with minimal disruption.
Experienced support across all boroughs for lofts, extensions, and basements.
Here’s what the typical process looks like when you work with us:
Share your plans/drawings and we confirm if the work is notifiable under the Party Wall Act.
We help confirm who must receive notice (freeholders/leaseholders/neighbours).
Notices are prepared and issued correctly with the right dates, details, and sections.
If consent isn’t given, surveyor(s) are appointed and the process moves to agreement.
We record the neighbour’s property condition to protect both parties before works start.
Cutting into a party wall to insert beams or raising the party wall for a loft.
Building on or close to the boundary line, including new walls and structural work.
Deep digging that can affect neighbouring foundations—common in many London areas.
Repairing, rebuilding, or altering shared garden walls and boundary structures.
London’s homes are closer together, buildings are older, and renovations are constant—so party wall matters come up more often and can become complex fast. Getting the process right early helps avoid delays, disputes, and unexpected costs.
We provide party wall surveying services across all London boroughs and the City of London. Whether you’re planning a loft conversion, rear extension, basement works, or structural alterations, we can handle your notices, schedules of condition, and awards with a clear, efficient process.
We cover:
North London
(e.g., Islington, Camden, Barnet, Haringey and Enfield) — postcodes include N1, N4, N5, N7, N8, N10, N11, N13, N14, N16, N17, N18, N19, N20, N21, N22, EN1, EN2, EN3, EN4 and EN5.
South London
(e.g., Southwark, Lambeth, Croydon, Wandsworth and Sutton) — postcodes include SE1, SE5, SE11, SE15, SE17, SE19, SE21, SE22, SE24, SE27, SW2, SW4, SW8, SW9, SW11, SW12, SW16, SW17, SW18, SW19, CR0, CR2, CR4, SM1 and SM2.
East London
(e.g., Hackney, Tower Hamlets, Newham, Redbridge and Barking & Dagenham) — postcodes include E1, E2, E3, E5, E8, E9, E10, E11, E12, E13, E14, E15, E16, E17, E18, IG1, IG2, IG3, IG4, IG5, IG6, IG8, IG11, RM6, RM8, RM9 and RM10.
West London
(e.g., Kensington & Chelsea, Hammersmith & Fulham, Brent, Ealing and Hounslow) — postcodes include W2, W3, W4, W5, W6, W7, W8, W9, W10, W11, W12, W13, W14, SW3, SW5, SW6, SW7, SW10, NW10, HA0, HA9, TW3, TW4, TW5, TW6, TW7 and TW8.
North West London
(e.g., Camden, Harrow, Hampstead, Kilburn and Wembley) — postcodes include NW1, NW2, NW3, NW4, NW5, NW6, NW7, NW8, NW9, NW10, NW11, HA1, HA2, HA3, HA4, HA5, HA7, HA8 and HA9.
Southeast London
(e.g., Blackheath, Lewisham, Greenwich, Bexley and Bermondsey) — postcodes include SE1, SE2, SE3, SE4, SE6, SE7, SE8, SE9, SE10, SE12, SE13, SE14, SE16, SE18, SE23, SE26, SE28, DA5, DA6, DA7, DA8, DA14, DA15 and DA16.
Central London & City of London
(Westminster, City of London, Holborn, Soho, Mayfair and surrounding areas) — postcodes include SW1, W1, W2, WC1, WC2, EC1, EC2, EC3, EC4, NW1 and SE1.
If your borough or postcode isn’t listed on this page, don’t worry—we may still cover it. Get in touch and we’ll confirm availability and next steps in minutes.
If you are planning building work but are not sure whether you need a notice, agreement or Award, these guides can help explain the next step.
1) What is the Party Wall etc. Act 1996?
It’s a UK law that sets out the procedure for carrying out certain building works that affect a shared wall, boundary wall, or nearby foundations, and how to notify and protect adjoining owners.
2) When do I need a Party Wall Surveyor in London?
If your work involves a party wall/structure, building on the boundary, or excavating near a neighbour’s foundations, you may need to serve notices and potentially agree an Award.
3) What types of London projects are commonly notifiable?
Loft conversions with steel beams, rear/side extensions near boundaries, basement excavations/underpinning, and structural alterations to shared walls are the most common.
4) How do I know if my work is notifiable (Sections 1, 2 or 6)?
A quick review of your drawings usually confirms it. Works often fall under: building on the line of junction (S1), works to a party structure (S2), or excavations near a neighbour (S6).
5) How much notice do I need to give my neighbours?
It depends on the work type. Many notifiable works require 1–2 months’ notice. A surveyor ensures the correct notice and timing.
6) What happens after I serve a Party Wall Notice?
Your neighbour can consent, dissent (request surveyor involvement), or ask for more information. If they dissent, surveyors are appointed and the process moves toward an Award.
7) Can my neighbour refuse my building work?
They can’t usually “veto” notifiable works outright, but they can dissent and require the matter to be handled under the Act, often resulting in a Party Wall Award with protections.
8) Do I still need a Schedule of Condition if my neighbour consents?
It’s strongly recommended. It records the neighbour’s property condition before work starts and helps prevent disputes about damage later.
9) What is a Party Wall Award?
A legally binding document that sets out how and when the work must be carried out, access arrangements, protective measures, and how any damage will be handled.
10) How long does the Party Wall process take in London?
Simple consent cases can be quick. If an Award is needed, timelines vary depending on complexity, neighbour response time, and access for inspection.
11) Who pays the Party Wall Surveyor fees?
In most cases, the building owner (the person doing the works) pays the reasonable surveyor fees, especially where the works are for their benefit.
12) Do you cover my borough?
Yes—our party wall surveyors cover all London boroughs and the City of London, including areas such as Islington, Camden, Hackney, Westminster, Southwark, Wandsworth, and Kensington & Chelsea.
