1522 High Road – Basement

Comprehensive basement excavation, reinforced concrete substructure and below-ground drainage package, including contiguous pile preparation, retaining walls, ground beams, slabs, attenuation and pumped drainage systems.

Location

Whetstone, North London

Sector

Residential

Completion

2025

Package

Basement excavation, reinforced concrete substructure and below-ground drainage

Package Value

< £1 million

Project Overview

ECS Group delivered the basement excavation, reinforced concrete substructure and below-ground drainage package for a new residential development in Whetstone. The works included approximately 1,000m³ of excavation and disposal, cropping 178 contiguous piles and constructing reinforced concrete capping beams, ground beams, retaining walls and ground-bearing slabs.

Key Scope of Works

• Basement and reduced-level excavation • Cropping of 178 contiguous piles • Reinforced concrete capping beams and ground beams • Reinforced concrete walls and ground-bearing slabs • Foul and surface-water drainage • Two surface-water attenuation tanks • Foul and surface-water pumping systems

Project Delivery

The package was delivered on a constrained site with restricted access and close interfaces between the piled structure, reinforced concrete works and drainage systems. ECS carefully sequenced the works to accommodate site-boundary restrictions, installed pile positions and the different development levels.