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PARTY WALL ADVICE
Party Wall Escrow & Security for Expenses Explained
Security for Expenses, often referred to as “Party Wall Escrow”, is a process under the Party Wall etc. Act 1996 designed to provide financial protection where concerns exist regarding the completion of works, potential damage, or recovery of costs.
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At Rellim Surveyors, we regularly advise both Building Owners and Adjoining Owners on Security for Expenses requests across London, Essex and Hertfordshire, helping matters proceed clearly, professionally, and in accordance with the Act.
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Our Party Wall Surveyors are centrally based in London and cover all London postcodes, alongside sites across Hertfordshire. We also operate from local offices in Covent Garden, Wandsworth, Leyton and Enfield, allowing us to provide responsive support across West London, South London, East London and North London.
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Whether you are undertaking basement excavations in Chelsea, structural alterations in Wimbledon, loft works in Enfield, or development projects in Chelmsford or Brentwood, our experienced Party Wall Surveyors can help guide you through the process.
PARTY WALL ESCROW & SECURITY FOR EXPENSES GUIDE UNDER THE PARTY WALL ETC. ACT 1996
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Party Wall Notices Served
Surveyors Appointed
Security for Expenses Requested
Escrow Terms Agreed
Funds Deposited
Works in Progress
Funds Released
The process begins when the Building Owner serves valid Party Wall Notices.
Both parties appoint their Party Wall Surveyors in writing.
An Adjoining Owner may request Security for Expenses under Section 12.
Both Surveyors agree the terms, including the amount and conditions.
Funds are placed with an independent third-party escrow provider.
The works proceed in accordance with the Party Wall Award and agreed terms.
Funds are released once the agreed conditions have been satisfied.
What Is Party Wall Escrow?
Party Wall Escrow is a neutral arrangement where funds are securely held by an independent third party in connection with works being undertaken under the Party Wall etc. Act 1996.
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The process is commonly associated with Section 12 of the Act, known as “Security for Expenses”, which allows an Adjoining Owner to request financial security before certain works commence.
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In practical terms, this money may be held in escrow to protect against risks such as:
Incomplete works
Recovery of surveyors’ fees
Concerns regarding insolvency
High-risk structural works
Damage to neighbouring property
The funds remain protected until agreed conditions have been satisfied.
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Rellim Surveyors regularly advises clients on Party Wall Escrow arrangements throughout London, Essex and Hertfordshire, including complex basement excavations, structural alterations and higher-risk developments.
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When Might Security for Expenses Be Requested?
Security for Expenses is not automatically required in every Party Wall matter. However, it may arise where the nature of the proposed works or surrounding circumstances create legitimate concerns.​
Examples include:
Basement excavations
Deep foundation works
Previous incomplete developments
Significant temporary works
This commonly occurs in projects throughout Central London, West London, East London, North London, Essex and Hertfordshire, particularly where complex structural works or basement developments are proposed.
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The appointed surveyors will consider whether the request is reasonable based on the individual circumstances of the project.
Structural alterations
Complex multi-storey developments
High-value neighbouring properties
Corporate Building Owners
Concerns regarding project funding
How Does Party Wall Escrow Work?
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Party Wall Notices are served
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Surveyors are appointed
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Security for Expenses is requested
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Escrow terms are agreed
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Funds are deposited
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Works progress
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Funds are released
The typical Party Wall Escrow process usually follows these stages.
Does Party Wall Escrow Delay Building Works?
Security for Expenses can introduce additional steps into the Party Wall process and may impact programme timelines where:
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Escrow terms require negotiation
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Security for Expenses is requested
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Additional legal review is needed
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Third-party escrow providers are involved
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Surveyors require further information
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Funding arrangements are outstanding
For this reason, we strongly encourage Building Owners throughout London, Essex and Hertfordshire to begin the Party Wall process as early as possible where Security for Expenses may become relevant.
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Early strategic advice can often help minimise delays and keep projects moving efficiently.
Are There Additional Costs?
Yes. Security for Expenses arrangements commonly involve additional costs beyond standard Party Wall procedures, including:
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Escrow provider fees
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Banking or transfer charges
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Legal or documentation costs
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Additional surveyor fees
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Administrative costs
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Further technical reviews
The exact costs will vary depending on:
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Project complexity
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Escrow value
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Provider requirements
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Level of dispute involved
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Number of parties involved
Any agreed costs should be clearly documented before the arrangement proceeds.
Frequently Asked Questions
Need Advice on Party Wall Escrow?
Whether you are a Building Owner or an Adjoining Owner, our experienced Party Wall Surveyors can guide you through Security for Expenses matters clearly, professionally, and in accordance with the Party Wall etc. Act 1996.
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We proudly assist clients across all London postcodes alongside Essex and Hertfordshire, from our offices in Covent Garden, Wandsworth, Leyton and Enfield.
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