About AppB

AppB is an AI-powered compliance platform built for UK Building Control professionals who administer the Part L Appendix B photographic evidence requirements. It replaces the slow, error-prone process of emailing unlabelled photo ZIP files and manually checking each junction with an automated workflow: builders upload site photos, the AI identifies which Appendix B junction each image shows, grades it against the regulation, and returns a pass, advisory, or retake verdict in seconds. Every photo carries a SHA-256 content hash, timestamp, and geolocation so the evidence is tamper-evident and audit-ready, and one click generates a professional PDF report structured around the Appendix B junction categories.

AppB is designed for Building Control organisations — local authorities, approved inspectors, and warranty providers — and the On-Domestic Energy Assessors (OCDEAs) they work with. Builders and contractors upload evidence through a free, invitation-only account, so there is no friction or fee for the people on site. Building Control officers get a command-centre dashboard showing the status of every plot at a glance, with colour-coded compliance, approval workflows, and automatic notifications when evidence is ready for review.

AppB is built and maintained by CoreLogic AI Ltd, a software company focused on practical AI tools for the UK construction and compliance industry. Our team combines building physics knowledge with production AI engineering to make regulatory evidence faster, clearer, and more trustworthy for everyone involved in a project.