Part O compliance, built for architects.
Catch overheating risk before planning submission, iterate glazing decisions in seconds, and hand Building Control a stamped report that mirrors the structure they expect.
- Test glazing strategies in seconds across every facade
- AI auto-fix suggests the minimum redesign to pass
- Mark up architectural drawings - the AI extracts rooms and windows
- Branded, signed PDF report ready for the planning portal
The three Part O headaches architects keep telling us about
Concept-stage uncertainty, late-stage redesign and a regulation that punishes generous glazing. We solve all three.
Glass-heavy concepts fail late
A scheme passes the planners then trips Part O on glazing-to-floor ratio. We flag this at concept stage in under five minutes.
Redesign loops eat fee
Use AI Auto-Fix to find the minimum glazing or shading change that brings the dwelling back inside the Simplified Method limits - no DTM needed.
Reports that look like spreadsheets
Hand Building Control a branded PDF with risk-zone map, room schedule, compliance gauge and your practice signature block.
Designed for the architect's workflow
From concept sketch to issued-for-construction package, every Part O check fits inside how you already work.
Concept-stage screening
Plug in target floor area and glazing percentages, get the pass/fail in seconds. Perfect for option appraisals.
Drawing extraction
Upload your floor plan PDF, the AI reads rooms, glazing dimensions and facade orientations - no retyping.
Per-room compliance
Detailed schedule with most-glazed-room flagging and bedroom-by-bedroom free area checks.
Practice-branded report
Your logo, your assessor block, your address - drops straight into the project deliverables.
Part O postcode risk checker
Find out instantly whether your site falls in a Part O High-risk overheating area. Based on Approved Document O, Appendix C (London Table C1 and Manchester Note C3). No sign-up required.
Risk zones are defined in Approved Document O, Appendix C (2021 edition).
Architect FAQs
Run your first Part O check in under 5 minutes
Free postcode risk-zone check, free assessment setup, only pay when you download the report.