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City Basements is part of the Toureen Group and delivers large-scale, complicated, multi-storey basement and specialist projects.

London Basement Construction by City Basements

Since 2007, City Basements has built a reputation as London's leading basement contractor, having completed some of the most complex and logistically challenging schemes.  The site-based specialist team has extensive experience of all forms of basement construction.

Our Projects

Cambridge Terrace, NW1

RC basement, demolition and façade retention to Grade II listed terrace, as part of the Crown Estate. 

Reinforced concrete basement and demolition

35 Marylebone High Street

All works were executed by internal Toureen Group divisions, including façade retention, demolition, temporary works and piling to 35 Marylebone High Street

RC basement and Façade Retention

Furnival House

The conversion of a Grade I listed building into fifteen residential units

Reinforced Concrete Basement | Highgate, London

Newport Street Art Gallery

Sub-structure and super-structure works to Newport Street Art Gallery

Reinforced Concrete Basement and Super-Structure Works



  • Basement design and construction
  • Silent and vibrationless sheet piling
  • Restricted and low headroom piling
  • Contigious and secant piling
  • Demolition
  • Facade Retention
  • Deep underpinning
  • Temporary works
  • Drainage 
  • Reinforced concrete construction
  • Basement waterproofing
  • Architectural concrete




  • Bored piling and associated attendances
  • Bulk Excavations using in-house fleet
  • Contaminated ground disposal and remediation 
  • Cut and fill
  • De-watering in deep excavations
  • Drainage and services
  • Enabling works and hard landscaping
  • External works
  • General earthwork support; temporary and permanent
  • Japanese Knotweed removal
  • Materials recycling
  • Raft foundations, pile caps, ground beams, trench and pad foundations
  • Silent and tradition sheet piling
  • Water stopping and waterproofing

Construction of water retaining structures

                RC Frames

  • Architectural concrete feature finishes
  • Climbing protective screens
  • Multi-storey high rise RC frames
  • In-situ stairs
  • Post tensioning
  • Pre-cast concrete beams, columns, floors and walls
  • Ribbed slabs
  • Slip form
  • Top down construction
  • Troughed slabs
  • Waffle slabs
  • Quality finishing 

Why clients work with the Toureen Group

Toureen Group are construction & contracting specialists and one of the biggest benefits of contracting with any of the divisions, is that clients automatically access the Group's wider, in-house expertise. This is particularly beneficial when unexpected project complications arise. Clients have noted that unlike working with a single discipline contractor:

  • value engineering solutions are more innovative because of the influence and exposure to different sectors,
  • construction programmes avoid delay through more resilience to unforeseen challenges and complications,
  • plant and material purchasing costs are more competitive due to the Toureen Group's greater buying power.

We have a varied range of specialities from groundworks and civil engineering to reinforced concrete structures, reinforced concrete basements,  de-watering, temporary works, piling and solutions for restricted site access in cities such as London.

A selection of in-house capabilities are shown below: