Input & Output Layout

Site name
Property id:
No. new properties onsite help_outline

Building dimensions
Maximum length (m):	Value can not be negative
Maximum width (m):	Value can not be negative
Total internal supporting wall length (m): help_outline	Value can not be negative
Number of additional internal walls: help_outline	Value can not be negative

Geology
Topsoil base (m)	Value can not be negative
Made Ground base (m):

Subsoil	Depth (m)	Description

Foundations
Strip foundation input
Strip foundation width (m)	Value can not be negative
Strip Foundation depth (m):	Value can not be negative
Strip foundation reinforced

Pile foundation input
Pile foundation diameter (m)	Value can not be negative
Pile foundation depth (m):	Value can not be negative
% of pile length the foundation is reinforced:

Key carbon reduction options to consider for foundations :

Please enter your data to see results.

Metric	Value
Optimum foundation to save carbon
Carbon saved	tCO₂e
Percent saving	%
Depth of strip when pile foundation becomes optimum	m

This is the number of buildings within the site development -add up no. appartment blocks + detached properties + terraced units etc.

Sum of all the lengths of supporting walls in the property. (See Examples for diagrams and further explanation.)

Total number of individual additional supporting walls. For terraced houses this includes dividing walls and then any additional walls per terraced house (See Examples for diagrams and further explanation.)

References	Links
DEFRA GHG database	GHG 2026
The Institution of Structural Engineers: How to calculate embodied carbon (3rd edition)

RESULTS tCO₂e	Strip	Pile
A1 - A3 (materials)
A4 (transport)
A5 (Construction inc. reuse and waste)
Total

Input Data

Output Results