A plain-English reference for the terms that recur across stock condition surveys, compliance and asset management. Where a term has a precise statutory meaning, treat this as an explanation, not a legal definition.
- UPRN
- Unique Property Reference Number — the stable, official identifier for an addressable location in Great Britain. The anchor key for joining property data across systems.
- Stock condition survey (SCS)
- A structured inspection of a property's components and condition, used to plan investment and evidence decency and safety.
- HHSRS
- Housing Health and Safety Rating System — the risk-based approach under the Housing Act 2004 for assessing hazards in residential property.
- Category 1 / Category 2 hazard
- HHSRS hazard severity bands. Category 1 hazards are the more serious; landlords have a duty to act on them. Category 2 are less serious but may still warrant action.
- Decent Homes Standard
- The minimum standard social homes are expected to meet — covering the statutory minimum (hazards), state of repair, modern facilities, and thermal comfort.
- Awaab's Law
- Provisions requiring social landlords to investigate and act on certain hazards, notably damp and mould, within prescribed timescales, with proper records and resident communication.
- Compliance denominator
- The count of properties a programme applies to. A controlled denominator treats 'unknown' applicability as an exception rather than assuming compliance.
- TSM
- Tenant Satisfaction Measures — a set of measures social landlords report to the Regulator of Social Housing covering quality, safety and service.
- SOR
- Schedule of Rates — standardised codes and prices for repair tasks, used to cost and analyse repairs activity.
- Void
- An empty property between tenancies. Void management covers inspection, works, compliance checks and re-let readiness.
- Maker-checker / QA gate
- A control where work captured by one person (the maker) must be accepted by an independent reviewer (the checker) before it updates the live record.
- No silent overwrite
- A conflict-control principle: if the master record changed since a device pre-loaded it, the field update is blocked and logged rather than overwriting the master.
- Snapshot vs live record
- A survey is a point-in-time snapshot. It only updates the durable, live asset record after it is QA-accepted — keeping history distinct from current state.
- Required-vs-observed
- A capture rule where an expected answer (e.g. a working CO alarm) that is not observed prompts the surveyor to raise a linked issue.
- PWA
- Progressive Web App — an installable, offline-capable web application that runs from the home screen with no app-store distribution.
- Effective dating
- Recording when a fact became true, so the asset record can be reported 'as at' any past date — essential for stock movement and assurance.
Sources & further reading
- 1. UPRN and the National Address Gazetteer — GeoPlace / Ordnance Survey
- 2. Housing Health and Safety Rating System (HHSRS) guidance — GOV.UK
- 3. Decent Homes Standard guidance — GOV.UK