Residential Foundation-Only
Foundation-only filings — early-phase residential construction.
27K permits classified across 4 metros
Browse residential foundation-only permits in New York City →What it covers
Residential foundation-only permits cover the very earliest phase of residential construction — foundation excavation, footings, and slab work filed separately from the superstructure. Often a precursor to a follow-up Residential New (Single-Family) permit on the same parcel. Useful for tracking groundbreaking activity 4-8 weeks ahead of the full construction permit.
How a permit lands in Residential Foundation-Only.
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 residential_foundation_only 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.
Residential Foundation-Only by metro — where it’s moving
Where residential foundation-only permits are classified today, ranked by volume — with each metro’s momentum (the last 90 days vs the prior 90) so you can see where the segment is heating up in your territory. Momentum shows only where we have enough filings to stand behind it. Metros with recent activity link straight into the live browse.
-5% vs prior 90d
- New York City →-5%27K
- Louisville →+135%170
- Boston-71%78
- Spokane County1
Recent residential foundation-only permits
Real permits classified into Residential Foundation-Only in the last 30 days.
- 3007 Boaires LnFoundation / Only—2026-08-27Louisville
- 61 Coverly AvenueFoundation / Only$1.3M2026-08-25New York City
- 23-42 129 StreetFoundation / Only$1.7M2026-08-25New York City
- 726 Caldwell StFoundation / Only—2026-08-25Louisville
- 655 Madison AvenueFoundation / Only—2026-08-24New York City
- 15 Pleasant Plains AvenueFoundation / Only—2026-08-24New York City
Who tracks Residential Foundation-Only.
Residential Foundation-Only 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.