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Data-Driven Methodology

How Scoring Works

🤠 Austin Edition

A multi-factor analysis of building quality using 16 weighted categories customized for Austin's unique climate, culture, and tech-hub lifestyle.

4.3M+311 records
16categories
200K+buildings

The Algorithm

Weighted composite scoring

Final Score =
Σ(Categoryi × Weighti)
÷
Σ Weights
+ Livability adjustment + Building fingerprint + Anti-clustering
3.0×
Code Compliance
Highest priority
2.5×
Flood Risk + 311
Flash Flood Alley
2.0×
Heat + Track Record
A/C is critical
1.5×
Crime + Maintenance
Safety & upkeep

Core Principles

Time Decay

5yr
decay window

Old resolved issues fade over time. 6mo=100%, 1yr=85%, 2yr=60%, 3yr=35%, 5yr=15%, 5yr+=3%. Open violations always count at full weight.

Open vs Closed

open weight

Open violations are 5-8× more impactful than closed ones. A building that fixes issues quickly scores better than one with lingering problems.

Per-Unit Normalization

÷
units

10 violations in a 100-unit building is better than 10 in a 5-unit building. Large buildings are judged fairly per unit.

Building Fingerprint

±0.3
unique offset

Each building gets a unique ±0.3 adjustment based on its ID hash. This ensures no two buildings have the exact same score—creating true rankings.

Score Compression

99.5
maximum

Scores above 90 are compressed (90-105 → 90-96) to create spread at the top. Top buildings differentiate naturally without artificial gaps.

Catastrophic Caps

35
min cap

Buildings with 50+ violations or 15+ open violations capped at 35. 30+ violations capped at 45. Terrible buildings can't hide behind averages.

Austin-Specific Factors

What makes Austin scoring unique

Flash Flood Alley

Austin is in one of the most flood-prone regions in North America. We track proximity to Onion Creek, Shoal Creek, Williamson Creek and high-risk ZIP codes. Flood risk is weighted 2.5×.

Brutal Summers

97°F average in August with 30+ days over 100°F. Unlike NYC where heat is required, Austin NEEDS A/C. We track HVAC complaints and penalize pre-1960 buildings for inadequate cooling.

Live Music Capital

6th Street, Rainey Street, Red River Cultural District—great for nightlife, challenging for sleep. Entertainment zones get noise penalties (-2 to -5 points).

Silicon Hills Tech Hub

Austin's tech scene means internet quality matters. We integrate Ookla Speedtest data (avg 332 Mbps download) and flag WFH-ready buildings. Tech hub areas get maintenance bonuses.

Note on Rent Control: Texas has a statewide ban on rent control. Unlike NYC or LA, Austin buildings don't have rent-stabilized units. However, Austin has strong tenant protections through the Texas Property Code and city ordinances for security deposits and lease terms.

Grade Thresholds

A
90-99.5
B
80-89
C
70-79
D
60-69
F
0-59

Most Austin buildings score 78+. Problem buildings can score as low as 35.

16 Scoring Categories

Tap any category to see details

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Enter any Austin address to get a comprehensive building report with all 16 scoring categories.

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Last updated: 2026-01-09Data sourcesHow scoring worksRenter checklist