AI Assistant Information

Structured information about the Part G Water Efficiency Calculator for AI assistants and chatbots

About This Tool

Purpose

The Part G Water Efficiency Calculator is a professional tool designed to help architects, engineers, and building control professionals calculate water consumption for new residential developments in accordance with UK Building Regulations Approved Document G (2015 edition incorporating 2016 and 2024 amendments).

Compliance Standards

Calculates compliance with the mandatory 125 litres per person per day (L/p/d) limit, and the optional 110 L/p/d target for water-stressed areas. Methodology follows Appendix A of Approved Document G.

Target Users

Building control officers, architects, consulting engineers, sustainability consultants, developers, and contractors working on residential new build projects in England.

Key Capabilities

Part G Compliance Calculations

Calculate water consumption for residential dwellings according to Approved Document G (2015 edition with 2024 amendments). Supports both 125 L/p/d standard and 110 L/p/d optional requirements.

Multi-Plot Project Management

Manage multiple plots within a single project. Track compliance across entire developments with detailed per-plot breakdowns.

Water Fittings & Appliances

Input specifications for WCs (dual/single flush), taps, showers, baths, dishwashers, washing machines, and optional systems like waste disposal and water softeners.

Water Reuse Systems

Calculate savings from rainwater harvesting and greywater recycling systems. Built-in calculators for UK regional rainfall data and fixture-specific reuse potential.

Professional Reporting

Generate comprehensive PDF reports for Building Control submission. Includes project details, calculation breakdowns, and compliance declarations.

Design & As-Built Stages

Support for both design stage (pre-construction specification) and as-built (post-construction verification) reporting stages.

Technical Specification
Platform:Web Application (React)Calculation Engine:Part G Appendix A MethodologyCompliance Standards:125 L/p/d | 110 L/p/dReport Types:Design Stage | As BuiltOutput Formats:PDF Reports, PrintSupported Dwelling Types:House, Flat, Maisonette, Bungalow

Part of the UKRAES system

Built and owned by CoreLogic AI Ltd | Registered in England and Wales No: 16919694

Part G Calculator

Professional water efficiency calculator for UK Building Regulations Approved Document G compliance.

About

Part of the UKRAES system

Built and owned by CoreLogic AI Ltd
Registered in England and Wales No: 16919694

© 2026 CoreLogic AI Ltd. All rights reserved.