Quiesce.T · Chicago & Cook County
Housing, preservation + climate risk, mapped for action.
Parcel-to-neighborhood intelligence for preservation targeting, housing stability, resident safety, and climate resilience. Use transparent Quiesce.T decision tools, then inspect the individual evidence layers behind each map.
DECISION TOOLS
Four screening tools on the same map
Use the overall preservation priority layer or one of the three transparent Quiesce.T composite tools. The composite tools use validity checks, rate construction, percentile normalization, weighted domains, and a 75% data-coverage gate.
START WITH A PRESERVATION TASK
What are you trying to do?
Live map
Ward view
Click an area to filter · use Area Brief for an action-ready summary
Properties by preservation priority class
Property typology
Current priority-tool distribution
Ranked properties
Priority tool scores appear only for the four scoring tools. Evidence lenses show cleaned evidence values only.
| PIN14 | Address | Ward | Tract | Typology | Units | Priority class | Score | Lens value | Actions |
|---|
Showing up to 150 properties. Public table-export controls have been removed from this edition.
From map to action
Use Ward → Tract → Parcel to move from neighborhood patterns to individual properties, then open a Property Passport to understand the drivers behind a location.
Explore→Prioritize→Understand→Compare→Act
ASSISTED HOUSING WATCH
Coordinate preservation review
Screen properties connected to affordable-housing sources, then prioritize deeper review using condition, vacancy, climate, energy, and ownership signals.
Assisted housing review queue
Screening list only. Program participation, units, restriction dates and eligibility must be verified against authoritative records.
| PIN14 | Address | Ward | Priority | Support sources | Source-reported units* | Open violations | Vacancy | Actions |
|---|
* Source-reported unit fields differ by program and must be verified. This table does not estimate a complete assisted-housing unit inventory.
OWNER / PORTFOLIO SCREENING
Understand ownership concentrations
Search an owner or entity, review its indexed property footprint, and surface preservation, condition, vacancy, affordability, and climate signals.
Match basis: recorded owner/entity text in the analytical index. This is not a perfected corporate-family linkage and is not a financial Portfolio Health assessment.
Owner search results
Search above to begin.
| Owner / entity | Match basis | Properties | Known units | Open violations | Vacancy signals | Supported properties | Action |
|---|
AHSAP / PROPERTY TAX RELIEF
Screen properties for tax-relief review
This is a basic data screen for Cook County's Affordable Housing Special Assessment Program (AHSAP). The Preservation Compact reports that 2025 legislation extended the incentive through 2034 and expanded qualifying-development rules. Quiesce.T does not determine affordability, rehabilitation, ownership, filing, or eligibility.
Potential AHSAP review queue
Known 7+ unit records, prioritized for review. Confirm current statutory requirements and property facts before action.
| PIN14 | Address | Owner | Known units | Assessed value | Support | Priority | Actions |
|---|
SRO WATCH
Follow time-sensitive SRO preservation notices
The current public parcel index does not contain authoritative SRO notice dates. This workspace therefore routes users to the Preservation Compact's live notice feed rather than freezing stale deadlines into the site.
Live noticesPreservation Compact SRO Watch
Open the authoritative listing feed for current notice dates, unit counts and preservation contacts.
Preservation resourcesSRO Resource GuideReview Chicago SRO preservation resources and legal/program context.
FinancingCIC financingReview current CIC lending resources for acquisition and rehabilitation.
Why there is no frozen deadline table here
SRO notices are time-sensitive. A static public_html build can become stale. A future server-backed Quiesce.T release can ingest and refresh notices automatically; until then, the official live source is safer for preservation decisions.
QUIESCE.T · CHICAGO & COOK COUNTY
Methodology & data
This public edition turns parcel-level preservation, housing, climate, energy, and neighborhood-context evidence into transparent screening tools. The tools are designed to support prioritization, outreach, deeper source-record review, and resident-centered planning — not to make legal, eligibility, or enforcement determinations.
Essential principle: missing values are not low risk and not high risk. They are excluded from calculations. If fewer than 75% of a tool's weighted inputs are valid, the result is labeled Insufficient Data rather than scored.
1. Data universe
The public map is built around PIN14 parcel-level analytical records, linked where available to 2023 Chicago wards, 2020 census tracts, community areas, coordinates, condition records, preservation-support indicators, housing context, climate/energy measures, and ownership text. This is a screening universe, not a complete housing inventory.
Why essential: every calculation must be interpreted in relation to the unit of analysis. A parcel record is not automatically one building, one owner family, one rental property, or one household.2. Source integration
The site combines property, housing, administrative, affordability, climate, energy, and socioeconomic context fields already present in the public web index. Evidence layers include building violations, vacancy signals, affordable-housing support flags, ACS rent burden, DOE LEAD energy burden, CMAP flood susceptibility, Landsat heat signal, and CDC/ATSDR SVI.
Why essential: preservation need is compound. A single source cannot show physical condition, market exposure, affordability pressure, and climate safety at the same time.3. Cleaning and validation
Numeric fields are parsed only when they are finite numbers. Empty strings, nulls, NA-like values, non-numeric text, and invalid numbers stay missing. Known unit counts are treated as known only where a valid numeric field exists.
Why essential: converting blanks into zero would make missing source coverage look like safe conditions and could distort scores.4. Rate and scale construction
Counts are converted into bounded screening signals before being combined. Violation and vacancy indicators are capped to prevent one extreme record from dominating the entire index. Neighborhood-context percentages and percentiles remain on interpretable 0–100 scales where possible.
Why essential: raw counts are not comparable across places with different building scale, records, or reporting patterns.5. Outlier handling
Highly skewed administrative signals are capped or transformed into bounded 0–100 component scores. This keeps extreme properties visible without allowing one outlier to control the map, chart, or table ranking.
Why essential: public administrative data often contains long-tailed counts, duplicates, or repeated events.6. Weighted domains
Each decision tool is a weighted combination of interpretable components. Overall Preservation Priority is now a new composite layer that uses the original analytical class as one input, not as the whole score. Housing Priority emphasizes burden, vulnerability, distress, vacancy, and renter concentration. Housing Preservation emphasizes condition, age, scale, support, vacancy, and preservation context. Climate & Resident Safety emphasizes flood, heat, energy burden, social vulnerability, and unsafe housing conditions.
Why essential: the weights make the policy logic explicit instead of hiding it inside an opaque score.7. Coverage gate
For each tool, valid component weights are summed. A score is published only when at least 75% of the weighted inputs are available. The climate-safety tool also requires at least one flood-susceptibility input.
Why essential: a composite index should not appear precise when too much evidence is missing.8. Composite score
Valid component scores are multiplied by their weights, summed, and divided by the valid available weight. The result is a 0–100 screening score. Higher values indicate higher relative priority, need, or safety concern.
Why essential: excluding missing values while reweighting only valid components prevents missingness from artificially raising or lowering the result.9. Tier assignment
Scores are grouped into five public tiers: Tier 1 Very High Priority (80–100), Tier 2 High Priority (60–79), Tier 3 Elevated Priority (40–59), Tier 4 Moderate Priority (20–39), and Tier 5 Lower Priority (0–19). Missing or under-covered records are shown separately as Insufficient Data.
Why essential: tiers make the map readable while keeping the underlying numeric score available for review.10. Geographic aggregation
Ward and tract maps summarize property-level or tract-context values using valid observations only. For tract-context variables, ward values are interpreted as mean context, not additive rates.
Why essential: geographic summaries must not imply that context measures were observed directly for every household or parcel.11. Climate and safety interpretation
Flood susceptibility, heat, energy burden, SVI, and unsafe-housing signals are treated as overlapping safety concerns. Climate & Resident Safety is a compound screening lens; it is not a flood-engineering model or emergency-management designation.
Why essential: climate exposure becomes a housing justice concern when it overlaps with vulnerable residents and unsafe housing conditions.12. Limitations
The static public edition does not expose the full evidence master, live SRO notice refreshes, complete affordability contract expirations, perfected corporate-family ownership linkage, or financial operating data. Users should verify important decisions against authoritative records.
Why essential: the map is a starting point for action and inquiry, not the final evidentiary record.Decision-tool formulas
Housing Priority Index
Weighted components: rent burden 20%, severe rent burden 20%, open-violation rate 15%, vacancy-signal rate 15%, social vulnerability 15%, renter share 15%. Component values are converted to geography-level rates and percentile ranks before scoring.
Housing Preservation Index
Weighted components: existing preservation priority class 20%, open-violation signal 25%, older housing stock 15%, vacancy signal 15%, affordable-support watch signal 15%, known-unit scale 10%.
Climate & Resident Safety Index
Weighted components: urban flood susceptibility 25%, riverine flood susceptibility 20%, heat signal 15%, energy burden 15%, SVI 15%, open-violation signal 10%. At least one flood input is required.
Overall Preservation Priority
Weighted components: preservation class, open violations, vacancy, affordable-support signal, rent burden, severe rent burden, flood susceptibility, and social vulnerability. This tool is the combined screening priority and is separate from the raw evidence lenses.
Evidence lenses
Evidence lenses are cleaned public display layers. They do not use raw mixed units directly: 0–1 fields are converted to 0–100, percentages are standardized, FSI 1–10 is normalized, and presence fields display as shares or present/no-signal values.