The window between plat preliminary approval and permit issuance is the single most valuable bid-pursuit window in Harris County commercial construction. It runs six to twelve months on the median commercial project. It is also the window almost no contractors monitor, because the data lives across three separate public-records systems and is inconvenient to track.
Inconvenience, in public records, is a moat. The contractors who learn to read plat filings consistently are competing against everyone else's permit-stage outreach with a six-month head start.
Here's what you need to know about Harris County plat filings — what they are, where to find them, which ones to pay attention to, and how to track them without losing every Monday morning.
What a plat is (and isn't)
A plat is a public legal document that subdivides a parcel of land into one or more lots, with lot lines, easements, and rights-of-way drawn to scale. It gets reviewed and approved by a local planning authority — in Harris County, this is the Harris County Engineering Department for unincorporated land, and the relevant city planning commission inside municipal limits. After approval, the plat is recorded with the county clerk and becomes legally binding.
What a plat is not: a building permit, a zoning change, or a guarantee that anything will get built. A plat says "the owner has the legal right to develop this parcel into the lots shown." Whether they actually develop it is a separate question. About 70% of platted parcels in Harris County see a building permit within 18 months. The other 30% sit, sometimes for years.
But here's the asymmetry: every commercial project over a certain size requires a plat. So if you're looking for the earliest visible signal that real money is going into a real piece of land in your market, the plat record is the right place to start.
Where Harris County publishes plats
There are three official sources, and they don't overlap cleanly.
- 01 ·PlatTracker (apps.harriscountytx.gov) — the County's online portal for plat applications under review. Updated cycle-by-cycle (every two to four weeks). This is where preliminary applications appear before approval.
- 02 ·The Houston Planning Commission archives (houstontx.gov/planning) — published weekly. Covers the city limits. PDFs of the meeting agendas list every plat scheduled for action.
- 03 ·Harris County Clerk recorded documents — final, post-approval, post-recording. This is where a plat becomes a legal document but also the latest of the three to appear.
The right one to monitor depends on how early you want to be. PlatTracker is the earliest — you'll see a plat application six to ten weeks before it's approved. The Planning Commission agendas are the moment of decision. The Clerk record is post-decision and is the wrong source for pursuit (it's the right source for legal due diligence).
The lifecycle: from filing to permit
A typical Harris County commercial plat lifecycle looks something like:
- 01 ·Pre-application meeting (informal, not always public). Developer meets with planning staff. 60–120 days before formal application.
- 02 ·Formal plat application filed. Appears in PlatTracker. This is the first public timestamp.
- 03 ·Technical review by engineering, drainage, utilities. 30–90 days. Comments returned. Applicant revises.
- 04 ·Planning Commission action. Approval, deferral, or denial. Appears on the agenda 5–10 days before the meeting.
- 05 ·Recording with County Clerk. Plat is now legally binding. 30–60 days after approval.
- 06 ·Site work permits, then building permits. 90–180 days after recording for commercial.
Total elapsed: somewhere between six and fourteen months from the first PlatTracker entry to the first building permit. That entire window is your bid-pursuit runway, and almost no other contractor in your market is watching it.
Which plats predict real bids
Not every plat leads to a project worth pursuing. Three filters worth applying:
Replats over original plats. A replat is a parcel that's been previously platted and is now being reconfigured — usually because a developer is consolidating lots or carving them for a specific use. Replats convert to permits about 1.6x more often than original plats. The reason is straightforward: the developer has already done the diligence on the land and is past the speculative phase.
Plats with named LLCs as owner. If the owner field on the plat application is an individual, the project is more likely to be residential and longer-fuse. If the owner is an LLC formed in the last 18 months (look up the formation date on the Texas Secretary of State filing), the project is almost certainly commercial and is being actively pushed. The 18-month LLC is a strong signal.
Plats with site work permits attached. If a plat goes from approved to recorded and a site-work permit appears within 60 days, the building permit is 90–120 days behind it. That's a high-confidence bid pursuit moment.
How to track plats without losing a day a week
If you want to do this manually, here's the minimum viable workflow:
- Monday: PlatTracker, filter by last 7 days. Note every new commercial application.
- Monday or Tuesday: Houston Planning Commission agenda, current and next week. Cross-reference with your PlatTracker list.
- Wednesday: County Clerk plat recordings, last 14 days. Tag the ones that converted from your earlier PlatTracker list.
- Friday: revisit your tagged plats, look up the owner LLC on Texas SOS, identify the principals.
Done right, this is about 3–4 hours a week for one analyst. Done wrong (chasing every plat without filtering), it's 12+ hours and exhausting. The filtering is the whole game.
If you'd rather not build that workflow internally, this is exactly what Platineer does — the same logic, applied across every plat in the county, scored against your business. I wrote a broader piece on the preconstruction window that covers how plats fit into the larger lifecycle of finding work early.
The honest limitation
Plats are early. That earliness is the point. It also means you are reaching out to developers before they've decided what they want, before they've hired an architect (sometimes), and before they have a budget locked. About a third of the conversations you'll have from a plat-filing signal go nowhere — the project shrinks, the financing falls through, the parcel sits.
That's fine. The math still works because the conversations that do convert convert at much higher value. A bid invitation you earned during preconstruction is worth two or three bid invitations you earned off a published RFP. Plats are how you get to those conversations months before anyone else.