The Subdivision / Plat Process
To split land into lots (or reconfigure parcels), you go through subdivision, recording a plat (a legal map of the new lots, streets, and easements).
Typical steps
- Preliminary plat — a detailed plan reviewed by staff and the planning commission; this is where most conditions are set.
- Construction drawings & improvements — design and build the roads, utilities, and drainage that serve the lots (often secured by a subdivision/site-improvement bond).
- Final plat — recorded once improvements are approved (or bonded), legally creating the lots you can sell or build on.
Why it matters
You can't sell or finance individual lots until they legally exist. The plat process also locks in public improvements you must build — a major cost item.
Going Deeper (Intermediate)
Splitting land into lots requires platting: a tentative/preliminary plat (approved with conditions) → a final plat (recorded) that creates the legal, saleable lots. It's governed by the local subdivision ordinance.
Advanced / Pro-Level
The land developer's value-creation moment:
- Tentative map/preliminary plat is the big approval — lot layout, roads, easements, and conditions of approval (which can be costly: off-site improvements, dedications, fees).
- Then improvement plans → build/bond the improvements → record the final plat/map.
- Dedications (right-of-way, parks) and subdivision improvement bonds guarantee the public infrastructure.
- The recorded plat creates marketable lots — the instant raw acreage becomes sellable finished lots, which is exactly where the land developer's profit is realized.
Practice Challenge
A land developer's whole business model is "buy acreage, sell finished lots." What single recorded document legally creates those sellable lots? (Answer: the recorded final plat/subdivision map — it legally divides the parcel into individual lots that can be sold/financed; getting from tentative plat through improvements to a recorded final plat is the core value-creation process.)
In Practice
A developer tries to sell lots that aren't legally recorded yet — they can't. The plat must record before lots exist to sell or finance.
Common Mistakes to Avoid
- Selling lots before the plat records
- Underestimating required public improvements
- Missing plat conditions
Takeaway: You can't sell or finance lots until the plat records them into existence.
Educational content — not legal, engineering, or financial advice. Requirements vary by jurisdiction; always confirm with the local authority and your professional team.