HXL

Basement Construction · Kensington · W8 · W14

Basement Construction in Kensington

Single-storey, double-storey and lightwell basement excavations under existing London homes. Delivered for Kensington across W8, W14, coordinated with Royal Borough of Kensington and Chelsea.

Basement Construction in Kensington, London
Basement Construction · Kensington

Overview

HXL delivers basement construction in Kensington and across the wider London. Basement construction under existing London townhouses, semi-detached and detached homes is high-margin, technically demanding work that HXL routinely delivers. Single-storey excavations under footprint, double-storey schemes, lightwell and sub-pavement vault construction in conservation-area streets. All schemes include temporary-works design, structural propping, BS 8102-compliant waterproofing, and party wall coordination across all affected neighbours.

Kensington · local context

Delivering basement construction to Kensington's requirements.

Property stock

Stucco-fronted Georgian and early-Victorian terraces, garden-square properties, Edwardian mansion blocks. A significant proportion Grade II listed.

Planning & conservation

Kensington Conservation Area, Kensington Square, Holland Park Conservation Areas (RBKC). Strict controls throughout.

Planning: Royal Borough of Kensington and Chelsea

Typical scope

Representative work HXL undertakes across Kensington.

  • Grade II listed internal refurbishment
  • Basement excavations on terraced sites
  • Lateral apartment combinations in mansion blocks
  • Mews house modernisation
  • Roof-level extensions subject to consent

How we deliver

The basement construction process.

01

Survey & design

Ground investigation, structural engineering design, party wall service, planning consent where the scheme falls outside permitted development.

02

Excavation

Underpin, install temporary works, excavate, remove spoil, construct retaining walls.

03

Waterproofing & fit-out

BS 8102 system installation, M&E first fix, plant install, second fix and finishes.

04

Sign-off

Structural sign-off, Building Control completion, waterproofing system warranty, 12-month workmanship warranty.

Questions

Basement Construction in Kensington.

Yes. HXL delivers basement construction across Kensington (W8, W14) and the wider London, as a principal contractor under a single JCT contract.

Royal Borough of Kensington and Chelsea. Kensington Conservation Area, Kensington Square, Holland Park Conservation Areas (RBKC). Strict controls throughout. HXL coordinates the planning submissions and statutory consents in-house, alongside your architect.

Stucco-fronted Georgian and early-Victorian terraces, garden-square properties, Edwardian mansion blocks. A significant proportion Grade II listed.

Enquire

Tell us the project in a paragraph. We reply within one working day.

HXL takes on a selective number of projects each year. A short note with the site, scope, appointed architect (if any) and likely timescale is all we need to open a conversation.

Private Residential

Homeowners with projects from £500k to £3m+, London and the Home Counties.

Residential Developments

Blocks of flats, multi-unit schemes, resale-ready delivery.

Heritage & Period

Listed buildings, conservation areas, period townhouses.

London · Home Counties · Buckinghamshire
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