Application guide
NHBC Foundation Depth
Prescriptive foundation depth screening near trees and shrubs using NHBC Standards 2024 Chapter 4.2.
What this tool does
Prescriptive foundation depth screening near trees and shrubs using NHBC Standards 2024 Chapter 4.2. This guide describes the main workflow, key information and stated limits to review when using the tool.
Tips and field guidance
Screening tool. Implements NHBC Tables 11–19; it does not design foundations or assess bearing, settlement, heave detailing or site-specific conditions. Depths over 2.5 m require an engineer’s design under Technical Requirement R5.
NHBC Standards 2024 · Chapter 4.2 · Building near treesOpen PDF in a new tab
Complete NHBC Standards 2024 Chapter 4.2: Building near trees
Areas in the app
Use these sections to locate the inputs, checks and results shown in the app:
- Calculator
- NHBC 4.2 PDF