Party Wall Services

Party Wall Information

Plain-English guidance on the Party Wall etc. Act 1996 — what it covers, when it applies, how the notice process works, and your rights at each stage.

What is the Party Wall etc. Act 1996?

The legislation covering shared walls, boundary structures and excavation work close to neighbouring properties in England and Wales. It provides a framework for carrying out building works while safeguarding the rights and interests of adjoining owners.

Why party wall legislation is important

A party wall forms part of the structure shared by neighbouring properties, meaning that building work affecting it can have consequences for both owners. Similarly, excavation close to an adjoining building may create risks to its stability or condition. Without a clear process for managing such work, disagreements can arise and relatively minor concerns can develop into more serious disputes.

This is particularly relevant in terraced and semi-detached properties, where shared walls and boundaries are common. For example, one homeowner may wish to undertake a loft conversion, construct a basement or extend their property, while their neighbour may be concerned about potential damage, water penetration or the loss of structural support. Both owners have legitimate interests that need to be considered.

Before the introduction of the Party Wall etc. Act 1996, resolving these matters could involve lengthy and costly court proceedings. The legislation established a more structured approach, allowing issues relating to proposed building work to be dealt with through formal notices, professional inspections and, where necessary, a Party Wall Award prepared by appointed surveyors.

Importantly, the Act is not intended to prevent property owners from carrying out improvements to their homes. Instead, it provides a legal framework that allows qualifying works to proceed while setting out the responsibilities and protections owed to neighbouring owners. When followed correctly, it helps reduce uncertainty, manage potential risks and provide a fair process for everyone involved.

The main purposes of the Act

In practical terms, the Party Wall etc. Act 1996 establishes six important principles that govern certain types of building work affecting neighbouring properties.

Rights to undertake building work

The Act provides property owners with specific legal rights to carry out certain works to shared walls and structures, including alterations, repairs and rebuilding. These statutory rights go beyond those ordinarily available under common law.

Formal notification requirements

Where proposed works fall within the scope of the Act, the building owner must serve the appropriate written notice on the adjoining owner before commencing the relevant work. This gives the neighbouring owner an opportunity to understand the proposals and consider their position.

Safeguarding neighbouring properties

The legislation provides protections for adjoining owners where building work may affect their property. A record of the property's existing condition can be prepared, and the building owner may be responsible for repairing damage resulting from the works or providing appropriate compensation.

Establishing responsibility for costs

The Act provides a framework for determining how expenses should be apportioned between the owners, including the costs of appointing surveyors. This helps establish financial responsibilities and reduces the potential for disagreements.

Resolving disagreements impartially

If the owners cannot reach an agreement on matters covered by the Act, appointed party wall surveyors can determine the relevant issues. Their decisions are documented in a formal Party Wall Award, which is binding on the parties unless successfully challenged.

Reducing the need for court proceedings

The legislation establishes a specialist procedure for resolving party wall disputes without routinely resorting to court action. Although an Award can be appealed to the County Court within the statutory time limit, the intention is to resolve matters through the surveyor appointment and award process.

The historical development of the Party Wall Act

The Party Wall etc. Act 1996 is the result of several centuries of legislative development. Its foundations can be traced back to London's rebuilding following the Great Fire, with successive laws gradually establishing a more structured approach to shared walls, neighbouring properties and building-related disputes.

  1. 1666

    The Great Fire of London

    The destruction caused by the Great Fire of London highlighted the importance of safer construction methods and better regulation of buildings. The subsequent rebuilding legislation introduced requirements for the use of brick and stone, alongside new controls over building design and construction. These measures helped establish the foundations of London's early building regulations.

  2. 1774–1894

    The evolution of building legislation

    As London continued to expand, further legislation was introduced to regulate construction and the relationship between adjoining properties. The Building Act 1774 and later Metropolitan Buildings Acts of 1844 and 1855 developed the existing framework. This progression continued with the London Building Act 1894, which further consolidated building regulations across the capital.

  3. 1939

    Part VI of the London Building Acts

    The London Building Acts (Amendment) Act 1939 established the party wall dispute-resolution framework that became the basis for modern practice in Inner London. It provided a formal procedure involving notices, appointed surveyors and legally binding awards to deal with disagreements between neighbouring owners.

  4. 1996

    The Party Wall etc. Act 1996

    The Party Wall etc. Act 1996 brought the established London approach to the wider areas of England and Wales. Introduced as a Private Member's Bill by the Earl of Lytton, a chartered surveyor, the legislation created a consistent statutory framework for dealing with party wall matters across these areas. The Act received Royal Assent in 1996 and came into force on 1 July 1997.

Who does the Party Wall Act affect?

Whether you're planning building work or own the neighbouring property, the Party Wall Act sets out the rights and responsibilities of both sides, explaining what each is entitled to expect and what is required of them.

Does the Party Wall Act apply to your building work?

Certain types of construction work may fall within the scope of the Act, particularly work involving shared walls, building along a boundary or excavating near an adjoining property. The information below provides a general overview, but it is always advisable to seek professional guidance before serving notices or commencing construction.

Section 1

Constructing a wall along a boundary

You are planning to build a new wall at or close to the boundary separating your property from your neighbour's, where no building currently exists or where only a boundary wall is present.

  • Building a new extension wall directly alongside the boundary.
  • Constructing a new shared wall across the boundary, subject to the adjoining owner's consent.
  • Erecting a new garden or boundary wall on the dividing line between the properties.

Section 2

Alterations to a party wall

Your proposed building work involves making changes to a wall or structure shared with an adjoining property. This may include structural alterations, increasing or reducing its height, or carrying out work that affects its existing construction.

  • Inserting steel beams or other structural supports into a party wall as part of a loft conversion or building alteration.
  • Increasing the height of a shared wall, lowering it, carrying out underpinning or rebuilding an existing defective structure.
  • Removing a chimney breast, installing a damp-proof course or undertaking work to a party wall exposed by the demolition of an adjoining structure.

Section 6

Adjacent Excavations

You intend to carry out digging or foundation work near an adjoining building or structure, where the proposed excavation meets the depth and distance requirements set out in the Act.

  • Excavating within three metres of a neighbouring building or structure, where the proposed works extend below the bottom of its foundations.
  • Excavating within six metres of a neighbouring building or structure, where the proposed excavation intersects a 45-degree line drawn downwards from the bottom of its foundations.
  • Carrying out basement construction, underpinning or installing deep foundations for a new rear or side extension.

What happens after a Party Wall Notice is served?

Five stages from notice to work starting.

In most cases, the process ends at step two, when the neighbour agrees to the proposed work. No surveyor is needed and there are no further costs. If they disagree, or don't respond, the process moves on to the appointment of surveyors.

Here's what happens at each stage.

  1. 14 days to respond

    Stage 1

    Notice served: the 14-day countdown starts

    The building owner serves a written Party Wall Notice on every adjoining owner, explaining the proposed work and when it is expected to start.

    If the neighbouring property has multiple owners, such as a block of flats or a jointly owned property, each adjoining owner must receive their own notice.

    Once the notice has been received, the adjoining owner has 14 days to respond. Their response determines whether the matter can proceed by agreement or whether surveyors need to become involved.

  2. Two possible outcomes

    Stage 2

    Response to notice

    There are two possible outcomes. Your neighbour can consent to the proposed work, or dissent. If they don't respond within 14 days, a dispute is deemed to have arisen under the Act.

    If your neighbour consents

    If your neighbour consents to the notice, you can usually proceed with your works once the statutory notice period has expired (or immediately where permitted). For additional protection, we can prepare a Schedule of Condition — a detailed written and photographic record of your neighbour's property before work begins. This provides valuable evidence should any damage claims arise during construction.

    Dissent or no response

    If your neighbour dissents or does not respond to the notice and follow-up letter, the Party Wall etc. Act 1996 requires surveyor(s) to resolve the matter. We'll guide you through the process and prepare the appropriate Party Wall Award, which sets out the rights and responsibilities of both parties, explains how the works should be carried out, and includes a Schedule of Condition to protect everyone involved.

  3. Stage 3

    Surveyors are appointed

    Once a dispute has arisen, there are two ways to appoint surveyors:

    Agreed surveyor

    Both owners agree to appoint one impartial surveyor to act for them.

    Two surveyors

    Each owner appoints their own surveyor. Those two surveyors then select a third surveyor, who can be called upon if they cannot agree.

    A Party Wall Surveyor must act impartially in accordance with the Act, rather than simply representing the interests of the person who appointed them. An owner cannot act as their own surveyor.

  4. Stage 4

    Schedule of Condition

    A Schedule of Condition provides a comprehensive record of a property's state before nearby building works commence. It typically consists of written observations supported by photographs, documenting any existing defects or signs of wear. Its purpose is not to assign blame, but to establish an accurate record of the property's condition before construction begins.

    This record offers protection to both property owners. It helps the building owner defend against claims relating to pre-existing damage, while providing the adjoining owner with documented evidence should any genuine damage arise during the works.

  5. 14 days to appeal

    Stage 5

    Party Wall Award

    The Award is agreed and the work can proceed

    The surveyor or surveyors prepare a legally binding Party Wall Award. This sets out the details of the permitted work, how it must be carried out and what safeguards are required to protect the adjoining property.

    It also establishes responsibility for costs, including the surveyors' fees, and may include arrangements for access and other practical matters.

    Either owner has the right to appeal the Award to the county court, but must do so within 14 days of receiving it. Appeals are relatively uncommon.

    Once the Award is in place and the relevant appeal period has passed, the building owner can proceed with the work in accordance with its terms.

    Where necessary, the Award also provides for reasonable access to the adjoining property and a framework for dealing with any issues that arise during construction.

This is a general outline. Other scenarios can arise that are not covered in detail here — counter-notices, multiple adjoining owners, changes of scope mid-project and so on. For advice on your own situation, get in touch.

Helpful guides

Free guides to the Party Wall process from official and professional sources.

GOV.UK Party Wall Act Explanatory Booklet

The official Government information booklet on the Party Wall Act.

Download

Party Wall etc. Act 1996

A PDF of the actual Party Wall etc. Act 1996.

Download

FPWS Party Wall Explanatory Guide

An explanatory guide by the Faculty of Party Wall Surveyors.

Download

FPWS Party Wall Flowchart: "What should I Do?"

A flowchart to help you decide what to do at each stage of the Act.

Download

RICS Party Wall Explanatory Guide

An explanatory guide by the Royal Institution of Chartered Surveyors.

Download

Guides are provided for general information only and do not constitute formal advice.

Still confused?

Send your drawings to us and we'll tell you straight away whether notice is required, and what happens next.

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