Professional services
Explore the published professional-services information and consider what inputs, roles and deliverables need to be clarified for the project.
View professional servicesFor architects, developers and project teams
Basement construction for project professionals
Underground works affect more than the finished basement. Use this page to navigate the relevant construction topics, identify project interfaces and prepare a focused discussion about the proposed works.
Find the relevant construction route
Use the detailed pages for the specific work package. This overview is designed to help you choose where to start.
Piling
Review the piling topic where foundation conditions, excavation arrangements and interaction with other packages are relevant.
View pilingNew-build basements
Consider how proposed underground space relates to the building above, construction access and the wider project sequence.
View new-build basementsRetrofit basements
Explore the particular constraints of work beneath or beside existing structures, including access and temporary-works interfaces.
View retrofit basementsBring the interfaces into view early
Existing conditions
Available surveys, records of existing structures and information about neighbouring buildings help clarify which assumptions have evidence behind them.
Design and construction responsibilities
Design responsibilities, temporary-works arrangements, approvals and interfaces between appointments must be confirmed for the particular project. A general service overview should not be treated as a design sign-off.
Site access and sequence
Excavation, material movement, logistics and constraints imposed by the surrounding property can influence how the proposed work is considered.
Waterproofing and building services
Underground construction needs early coordination with the intended waterproofing strategy and relevant services. The precise design and responsibility boundaries depend on the scheme.
Useful information for an initial project discussion
Send the information already available; identify outstanding questions rather than filling gaps with assumptions.
- Project location and a short description of the development or alteration.
- Current design stage and the basement's proposed extent and use.
- Relevant drawings, surveys and known existing-building constraints.
- Proposed excavation, structural or temporary-works approach, if developed.
- Known access, logistics, programme or neighbouring-property interfaces.
- The package or decision for which construction input is being sought.
Discuss the basement element of your project
Share the brief and available technical information so the next conversation can concentrate on the relevant scope, constraints and responsibilities.