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Housing Stability Index™

Infrastructure Certification & Impact Framework

ASHP Affordable Smart Housing Program™ — Housing Stability Index™ (HSI™)

An Environment-Level Indicator of Stability Over Time

Measuring Stability Without Scoring People

The Housing Stability Index™ (HSI™) is an environment-level indicator used within the ASHP Affordable Smart Housing Program™ to describe housing stability over time.

HSI™ is designed to:

  • Reflect conditions of the built environment and its operation
  • Support longitudinal analysis across validation cycles
  • Inform certification interpretation and impact reporting

HSI™ does not evaluate individuals or households and is not a predictive or financial instrument.

What HSI™ Is (and Is Not)

What HSI™ Is

HSI™ is:

  • An aggregated, environment-level indicator
  • Descriptive, not predictive
  • Validation-dependent and evidence-based
  • Non-financial and non-tradable

These characteristics ensure HSI™ operates within responsible boundaries.

What HSI™ Is Not

HSI™ is not:

  • A credit score, social score, or risk rating
  • A household-level metric
  • A regulatory or compliance substitute
  • A guarantee of outcomes or funding

These boundaries preserve integrity and prevent misuse.

Stability Signals at the Environment Level

HSI™ may reference validated indicators related to:

Continuity of Occupancy & Operations

Stability of environment usage and reduced avoidable disruption

Aging-in-Place Readiness

Environmental capacity to support residents over time

Infrastructure Reliability

Consistent performance of core systems and services

Operational Governance

Presence of defined roles, escalation paths, and accountability

Indicators are interpreted collectively, not independently.

Evidence First

Relationship to Validation

HSI™ values are derived from independently validated evidence generated through HOBEC™.

HSI™:

  • Is calculated only after validation cycles are complete
  • May evolve as evidence accumulates
  • Reflects documented conditions at specific points in time

No HSI™ is produced without sufficient validated data.

Use, Privacy & Reporting

How HSI™ is applied within ASHP

Use Within ASHP

Supporting Interpretation and Reporting

Within ASHP, HSI™ may be used to:

  • Inform certification-level interpretation
  • Support longitudinal impact reporting
  • Enable comparison across environments or portfolios

HSI™ does not operate in isolation and is never used as a sole decision criterion.

Privacy & Data Handling

Aggregated by Design

HSI™ is calculated using:

  • Aggregated, anonymized environment-level data
  • No individual identifiers
  • No continuous monitoring of residents

This design minimizes privacy, legal, and ethical risk.

Reporting Considerations

Transparency With Context

When HSI™ is referenced publicly:

  • Assumptions and limitations are disclosed
  • Contextual explanation accompanies values
  • Trends are emphasized over point-in-time interpretation

HSI™ is presented as an indicator, not a judgment.

Stability as a Shared Outcome

The Housing Stability Index™ (HSI™) provides a disciplined, environment-level way to describe housing stability — without scoring people, predicting outcomes, or financializing impact.

It exists to support responsible analysis, transparency, and trust.