How Subcontractors Use Permit Data to Find New Construction Projects
If you're a subcontractor — electrical, plumbing, HVAC, drywall, framing, concrete — your biggest challenge isn't doing the work. It's finding the work before someone else does. By the time a general contractor posts on a job board or word gets around about a new project, the bids are already in. Building permit data gives you a head start: you see projects at the moment they're filed, often weeks before ground breaks.
The Subcontractor's Timing Problem
General contractors typically line up their subs during the planning phase or early in construction. If you hear about a project through your network, through a job board, or by driving past a construction site, you're already behind. The GC has probably already solicited bids from their regular subs. You're competing against established relationships, and your only lever is price — which means lower margins.
Permit data changes this dynamic. When a building permit is filed, it's a public record that announces: "A project is about to start at this address, for this type of work, filed by this contractor." You can see the project type (new construction, renovation, commercial build-out), the general contractor's name, and often the scope of work. That's enough information to make a targeted, well-timed bid before the GC has filled every sub slot.
What the Data Looks Like: Real Numbers
PermitGrab tracks building permit filings across 11+ cities and enriches contractor profiles with phone numbers from state licensing databases. Here's what the data set looks like right now:
Chicago has 8,872 contractor profiles in the system. The top trade is Electrical with 2,774 active companies, followed by HVAC with 2,001. If you're an electrical sub in Chicago, you can see exactly which 2,774 electrical contractors are pulling permits — and which general contractors are filing the projects those electricians are working on.
San Antonio has 4,626 contractor profiles, with Landscaping & Exterior leading at 1,202 companies, followed by Plumbing (689) and HVAC (641). The city filed 22,555 permits in the last 90 days — 251 new projects per day.
Miami-Dade County has 4,290 contractor profiles with the best phone coverage in the system: 4,002 profiles (93.3%) have verified phone numbers. Top trades are HVAC (945), General Construction (847), and Roofing (692).
Phoenix has 1,966 profiles led by General Construction (553), Plumbing (383), and Electrical (211). The city generated 6,039 permits in the last quarter.
Three Ways Subcontractors Use Permit Data
1. Direct outreach to GCs on new projects. When you see a new construction permit filed by a general contractor you haven't worked with before, reach out immediately. "I saw you pulled permit #12345 for the new build at 789 Elm Street. We specialize in [your trade] and are available to bid. Can I send over our rate sheet?" You're showing initiative and market awareness — exactly what a busy GC appreciates.
2. Track your competitors' activity. Permit data shows you who's winning work in your market. If a competing electrical sub suddenly starts appearing on permits in a new zip code, you know they're expanding — and you should consider whether to follow them or double down where they're retreating from.
3. Build relationships with the most active GCs. Sort contractors by permit volume and you'll quickly see which general contractors are the busiest in your area. These are the relationships worth investing in. Offer competitive pricing on their first project together, deliver excellent work, and you'll have a repeat customer feeding you projects for years.
Phone Numbers Make the Difference
Knowing that ABC Construction pulled a permit is useful. Having their phone number in the same record is powerful. PermitGrab enriches contractor profiles with phone numbers from state licensing databases and web search.
Coverage varies by city: Miami-Dade has 93% phone coverage, San Antonio has 83% (3,838 out of 4,626 profiles), Chicago has 40% (3,500 out of 8,872), and Phoenix has 55% (1,088 out of 1,966). Even partial phone coverage means you can call hundreds of active contractors directly instead of hunting for contact information.
The Economics: Permit Data vs. Job Boards
Construction job boards charge per-bid fees or monthly subscriptions that can run $200-500/month for a single metro area. Lead services charge $20-50 per project lead. And you're sharing those leads with every other sub who's paying for the same list.
PermitGrab is $149/month for unlimited access to all cities, all trades, all permit types, plus contractor phone numbers and property owner data. One subcontract win from a permit-sourced lead pays for years of access.
Start your free trial — see who's pulling permits in your city today.
See also: New Construction Project Leads for Contractors
City spotlights
City-specific subcontractor lead playbooks:
- Austin subcontractor leads — 6,800+ active permits, Travis County owner data
- Sacramento contractor leads — revived V486 source with CA CSLB phone enrichment