RBKC Basement Specialists

Basement Engineers in Kensington & Chelsea

Kensington and Chelsea leads London for basement excavations beneath period townhouses. Our engineers specialise in the RBKC Basement Policy, preparing the Structural Methodology Assessments, Construction Method Statements, and Chartered Engineer certificates needed to secure consent in London's most regulated borough.

Local Challenges

Basements in Kensington & Chelsea

RBKC limits basements to a single storey beneath the original footprint. Every application requires a Structural Methodology Assessment proving the scheme won't affect party walls, drainage, or neighbouring foundations. Many properties sit within conservation areas where the Construction Method Statement must also address traffic management, noise mitigation, and facade protection during excavation.

What You Get

  • Full basement structural design to RBKC policy requirements
  • Structural Methodology Assessment (SMA)
  • Construction Method Statement (CMS) with traffic management
  • Chartered Engineer's certificate for planning submission
  • Party wall structural surveys and temporary works design
  • Construction-phase monitoring and Building Control sign-off

Property Types

Basements by Property Type in Kensington & Chelsea

Permissions & Approvals

What Approvals Do You Need?

RBKC Basement Policy

All basement developments require a Structural Methodology Assessment (SMA) and Construction Method Statement (CMS). Single-storey limit beneath original footprint only. No garden basements permitted.

Planning Permission

Full planning permission is required for all basement excavations in RBKC. Applications must include the SMA, CMS, traffic management plan, and a Chartered Engineer's certificate.

Building Regulations

Building Control approval covers structural design, waterproofing, fire safety, ventilation, and means of escape. Inspections are required at key construction stages.

Party Wall Act

Virtually all Kensington basements trigger Party Wall Act requirements. Notices must be served on adjoining owners, and party wall surveyors appointed before work begins.

Listed Building Consent

For listed properties, additional consent is needed demonstrating minimal impact on historic fabric. Archaeological conditions may also apply.

Timeline

How Long Does It Take?

Design and planning: 3–4 months. Construction: 9–14 months. Total project: 12–18 months.

Tailored Pricing

Request a Fee Proposal

Every project is unique. Share your drawings with us and receive a detailed fee proposal tailored to your basements project in Kensington & Chelsea.

Recent Project

Holland Park, Kensington & Chelsea

Delivered a full basement excavation beneath a Grade II-listed townhouse in Holland Park. Our RBKC-compliant Construction Method Statement and Structural Methodology Assessment secured planning consent on the first submission, and construction was completed within 12 months.

Common Questions

Basements in Kensington & Chelsea — FAQ

Ready to Engineer Your Project?

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