Legal or procedural basis
Sections 2 and 6 may both apply; project-specific engineering evidence is important.
Clear, practical Party Wall advice across London, England & WalesRequest a call back
Basements & Underpinning
Specialist consideration of deep excavation, underpinning, temporary works and neighbour safeguards.
Service overview
What this service covers.
Owners and design teams planning deep excavation or foundation support work.
Basement and underpinning projects can engage both party-structure and adjacent-excavation provisions and usually require detailed temporary-works, sequencing and safeguarding information. Security for expenses and monitoring may also need reasoned consideration.
When this service may be relevant
- Excavation extends below neighbouring foundation levels.
- A party wall or adjoining structure requires underpinning or support.
- Temporary works, movement monitoring or security for expenses are in issue.
Who this is for
Owners and design teams planning deep excavation or foundation support work.
How the instruction is approached
A clear route, matched to the facts.
The Act’s requirements and any boundary procedure depend on the actual documents, ownership and site relationships. These are the usual working stages.
- 01
Define the dispute
Confirm the valid notice, appointments, drawings and matters that fall within the surveyors’ statutory jurisdiction.
- 02
Record and review
Inspect relevant condition and review structural, sequencing, access and safeguarding information proportionately.
- 03
Settle the Award
Record the authorised work and practical protections in an Award before the relevant work proceeds.
Questions about Basements & Underpinning
Useful context before you instruct.
General information only. Advice on a particular property requires the relevant documents and facts.
01Why do basement Awards take longer?
The surveyors may need complete structural, geotechnical, temporary-works and sequencing information before safeguards can be settled proportionately.
02Is security for expenses always required?
No. It may be requested under section 12, but the amount and form depend on the project and evidence.
Authoritative references
Further reading
These public sources support the general explanations on this page. They do not replace advice on the facts of a particular property.
Basements & Underpinning
Request an assessment or call back.
Describe the work, notice or concern and tell us which drawings or documents you already have. You do not need to decide the statutory route before contacting the team.
Call 020 8050 0443