ADU-Qualifying Construction
Accessory dwelling units — backyard cottages + garage conversions.
30K permits classified across 2 metros
Browse adu-qualifying construction permits in Los Angeles →What it covers
ADU-qualifying permits cover accessory dwelling units — backyard cottages, garage conversions, attached and detached ADUs that meet local zoning thresholds. A high-growth segment in West Coast metros where state-level legislation (e.g. California SB 9 / SB 10) has streamlined approval. Used by realtors, ADU specialists, and policy researchers to track urban-infill density trends.
How a permit lands in ADU-Qualifying Construction.
Every silver permit flows through a two-stage classifier. The deterministic stage maps the structured signals — work_class, the normalized permit type, and the building sub-type — into the segment vocabulary where the mapping is unambiguous. The machine-learning stage handles the cases that aren't direct lookups: multi-vocab permit-type strings, ambiguous occupancy spans, and jurisdictions that bundle categories. The segment is the classifier's output, the same axis across every metro — so adu_qualifying means the same thing in NYC as in LA even though the upstream jurisdictions emit completely different raw permit-type strings.
When the signal genuinely isn't there, we say so. A row with no assignable segment degrades honestly — to its work-nature, then to its raw source type, and only to “Unclassified” when truly nothing is known. We never guess a segment to fill a gap; an honest Unclassified is the floor, and field-level data-quality flags surface when the classifier had low confidence. That restraint is the point — the classification is only worth selling on if the “don't know” is honest.
ADU-Qualifying Construction by metro
Where adu-qualifying construction permits are classified today, ranked by volume. Metros with recent activity link straight into the live browse; the rest show their all-time classified count.
- Los Angeles →27K
- San Francisco →2,843
Recent adu-qualifying construction permits
Real permits classified into ADU-Qualifying Construction in the last 30 days.
- 4250A 26th StADU$313K2026-06-30San Francisco
- 4250 26th StADU$313K2026-06-30San Francisco
- 131A Edna StADU$141K2026-06-29San Francisco
- 131 Edna StADU$141K2026-06-29San Francisco
- 7917 N RUDNICK AVEADU$95K2026-06-27Los Angeles
- 8535 W MELVIL STADU$55K2026-06-26Los Angeles
Who tracks ADU-Qualifying Construction.
ADU-Qualifying Construction is a sales-intelligence segment for manufacturers and distributors selling into residential remodels and new homes. Filter it by metro, rank the contractors pulling these permits, and see the projects worth selling into — the same way across every covered market.