# Basement Construction in Marlow

Single-storey, double-storey and lightwell basement excavations under existing London homes. Delivered for Marlow (SL7), Home Counties, by HXL Construction under a single JCT contract, coordinated with Buckinghamshire Council.

## Overview
HXL delivers basement construction in Marlow and across the wider Home Counties. 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.

## Capability
- Single-storey basement excavation under existing footprint
- Double-storey basement schemes
- Lightwell and sub-pavement vault construction
- Temporary works and propping design
- BS 8102 Type C cavity-drainage waterproofing
- BS 8102 Type A and Type B tanked waterproofing
- Underpinning to existing foundations
- Party wall award coordination across all neighbours

## Marlow: local context
**Property stock.** Georgian and Regency townhouses, Thames-side family homes, post-war detached properties, country estate main houses within a 5-mile radius.

**Planning and conservation.** Marlow Conservation Area (Buckinghamshire Council). Many riverside properties within Area of Outstanding Natural Beauty (Chilterns AONB). Local planning authority: Buckinghamshire Council.

**Typical scope in Marlow:**
- Ground-up new builds on Thames-side plots
- Full-house refurbishments of townhouse stock
- Country estate outbuilding conversion
- Pool house, spa and gym new builds
- Landscape and hard-landscape integration

## 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.

## FAQ
**Does HXL carry out basement construction in Marlow?** Yes. HXL delivers basement construction across Marlow (SL7) and the wider Home Counties, as a principal contractor under a single JCT contract.

**Who is the local planning authority for Marlow?** Buckinghamshire Council. Marlow Conservation Area (Buckinghamshire Council). Many riverside properties within Area of Outstanding Natural Beauty (Chilterns AONB).

**What properties does HXL work on in Marlow?** Georgian and Regency townhouses, Thames-side family homes, post-war detached properties, country estate main houses within a 5-mile radius.

## Related
- Basement Construction (overview): https://hxlconstruction.co.uk/services/basement-construction
- Construction in Marlow: https://hxlconstruction.co.uk/areas/marlow

Contact: info@hxlconstruction.com · +44 7845 585147 · HXL Construction Ltd, 102 Vine Lane, Uxbridge, London UB10 0BE