Golden Thread Web Twin for Higher-Risk Buildings (HRBs)

Get BAC-Ready in 4–8 Weeks. A Golden Thread Web Twin for Higher-Risk Buildings (HRBs) that your regulator can trust. Stream BIM as OGC 3D Tiles, link evidence from your CDE, and generate Safety Case drafts with RAG.

Book a 30-minute scoping call

Who It's For

🏢 Principal Accountable Persons (PAPs)

At housing associations and local authorities managing Higher-Risk Buildings

🏠 Build-to-Rent & Student Operators

BTR and student accommodation operators requiring BAC compliance

🏗️ Principal Designers & Contractors

PDs and PCs supporting dutyholders with regulatory compliance

Outcomes You Can Expect

✅ BAC Readiness

Building Assessment Certificate readiness with a live checklist (tasks, owners, dates)

📋 Safety Case Draft

Safety Case draft with citations back to exact files and pages in your Common Data Environment (CDE)

📊 MOR & Engagement Pathways

Mandatory Occurrence Reporting (MOR) and resident-engagement evidence pathways

⚡ Fewer Information Defects

Fewer information defects at handover and faster updates to the Safety Case

What You Get

🌐 Web Twin

Stream Building Information Modelling (BIM) and surveys as Open Geospatial Consortium (OGC) 3D Tiles in Cesium JavaScript (CesiumJS); optional Google Photorealistic 3D Tiles for city context

🔐 Governance-Ready Data

Role-Based Access Control (RBAC), Single Sign-On (SSO), audit history, object picking, property search

🔗 Evidence Linking

Deep links to your CDE (e.g., Safety Case folders, Operations & Maintenance (O&M) manuals, certificates)

🤖 AI Assistants (Optional)

Retrieval-Augmented Generation (RAG) to extract facts, draft Safety Case sections, and pre-compile BAC application packs

📏 Standards Alignment

ISO 19650, UK BIM Framework, Level of Information Need (LoIN); AI controls aligned to ISO/IEC 42001 (Artificial Intelligence Management System)

How It Works (Delivery Phases)

Phase 1: Discovery (Weeks 1–2)

Scope one HRB, run a Data Protection Impact Assessment (DPIA), map Organisational/Asset/Exchange Information Requirements (OIR/AIR/EIR) and LoIN, confirm architecture on Microsoft Azure (Virtual Networks (VNets), private endpoints, RBAC).

Phase 2: Twin Foundation (Weeks 3–6)

Convert Industry Foundation Classes (IFC)/Revit + Light Detection and Ranging (LiDAR)/photogrammetry to OGC 3D Tiles (via Cesium ion or self-hosted tilers), bring up the CesiumJS portal, index CDE content, enable SSO.

Phase 3: AI & Workflows (Weeks 7–10, optional)

Configure RAG extraction, generate Safety Case drafts with citations, set MOR and resident-engagement workflows.

Phase 4: Hardening & Handover (Weeks 11–12)

Performance tuning, licensing/attribution checks (Google/Cesium), training, runbooks, User Acceptance Testing (UAT).

Timeline & Pricing Guidance

Pilot (One HRB)

Complete pilot implementation delivered within 4–8 weeks, including discovery, twin foundation, and optional AI workflows.

Investment Range

Typical investment: £35,000–£75,000 for pilot implementation. Rollout pricing available per-building with support options (24/7 or business hours).

What Makes It Regulator-Friendly

🔍 Clear Traceability

Clear traceability from model objects to source documents

📚 Grounded AI Outputs

AI outputs always grounded with citations (no "model says so")

🔒 Enterprise Security

Access controls and logging aligned to enterprise security

Frequently Asked Questions

What data do we need to start?

IFC or Revit exports, coordinates (EPSG/Coordinate Reference System), access to your CDE, and any survey data (LiDAR/photogrammetry).

Is Google Photorealistic 3D Tiles survey-grade?

No—use as context only; rely on BIM/surveys for compliance.

Will our data train third-party models?

No—Azure OpenAI does not train base models on your data; requests run via private endpoints and VNets.

How do you handle privacy?

DPIA before pilots; Data Processing Agreements (DPAs) with processors; least-privilege RBAC and audit logs.

Ready to Get BAC-Ready?

Book a 30-minute scoping call to discover how our Golden Thread Web Twin can accelerate your Building Assessment Certificate readiness while ensuring full regulatory compliance.