HHSRS Methodology

Pre-Inspection & Desktop Review

Before setting foot on site, we compile property records, tenancy history, previous hazard data and vulnerability information to scope the inspection.

• ▸Property file review: construction type, age, modifications and historic disrepair logs
• ▸Tenancy history and household vulnerability assessment (age, disability, long-term health conditions)
• ▸Review of any previous HHSRS assessments or enforcement actions
• ▸Resident pre-contact letter and appointment scheduling with reasonable notice

On-Site Hazard Survey

A full internal and external inspection covering all 21 HHSRS hazard categories as defined under the Housing Act 2004 Operating Guidance.

• ▸All 21 hazards assessed: excess cold/heat, damp and mould growth, falls (each type), fire, electrical, sanitary, water supply, food safety, structural collapse, etc.
• ▸Photographic evidence captured per hazard with geolocation and timestamp metadata
• ▸Moisture meter readings and surface temperature data for damp/mould hazards
• ▸Resident interview to capture lived-experience evidence of hazards (e.g. condensation patterns, heating affordability)
• ▸External inspection: roof, drainage, paths, structural elements and boundary conditions

Statutory Hazard Scoring

Each identified hazard is scored using the statutory likelihood × harm outcome methodology prescribed by the HHSRS Operating Guidance.

• ▸Likelihood of occurrence assessed using the statistical tables in the Operating Guidance (class of harm I–IV)
• ▸Harm outcome weighted by severity: Class I (extreme), Class II (serious), Class III (moderate), Class IV (minor)
• ▸Hazard Rating Score (HRS) calculated: HRS = Likelihood × Spread of Harms × Harm Weighting
• ▸Hazards classified as Category 1 (HRS ≥ 1,000) or Category 2 (HRS < 1,000) per statutory threshold
• ▸Comparative scoring against the Operating Guidance benchmark properties for context

Report Generation & Remediation

Findings are compiled into a digital report with traffic-light risk summary, prioritised remediation schedule and full evidence trail.

• ▸Traffic-light risk summary: red (Cat 1), amber (high Cat 2), green (low Cat 2)
• ▸Prioritised remediation recommendations with indicative timescales aligned to Awaab's Law deadlines
• ▸Full photographic evidence trail linked to each hazard and scoring decision
• ▸Digital report delivered through the portal with exportable PDF for regulator or board submission
• ▸Post-remediation re-inspection available to verify hazard removal and close out Category 1 findings