Can you subdivide land you don't own yet if you're under contract

Central Georgia specifically I can't speak to, but I ran into almost this exact situation on a 22-acre parcel in Polk County, Florida two years ago. What actually worked was getting the seller to sign a letter of authorization on county letterhead that named me as the authorized applicant during the contract period. The county planner accepted that, stapled it to the preliminary plat submittal, and started the clock. Closed 38 days later and the review was already 38 days deep when I took title. Not every county takes that approach though. The adjacent county told me flat out that the application had to list the record owner as applicant and I would have to be listed as agent at best, which in practice meant the seller was the applicant and I was hoping they didn't get cold feet mid-review.

The thing I would want to know before doing anything else in your situation is whether your purchase contract already gives you authority to act on the seller's behalf for permitting purposes during DD. Some contracts, especially if you drafted or negotiated it, have that language baked in, and if it does, you can hand that to the county planner and at least start a pre-application meeting, which does not require ownership at all and usually does not even require an authorization letter. That meeting alone can shave two to three weeks off the formal review because you catch comment issues before you are officially in queue. Go talk to the county planner in person, not by phone, bring your contract, and ask them directly what they need to put you in the system as applicant. That conversation will tell you more in 20 minutes than anything else.

Most Georgia counties will accept a preliminary plat application from a contract purchaser as long as the record owner co-signs the application or provides a notarized letter of authorization. The hard part is getting a motivated seller to do that paperwork for a deal that hasn't closed yet.

I ran into exactly this on a 22-acre parcel in Coweta County in 2021. Seller agreed verbally, dragged his feet on the authorization letter for three weeks, and I ate half my due diligence window before a single document hit the county desk. Cost me a 30-day extension fee and I had to renegotiate the purchase price down $18k to get the seller to agree to it.

Get the authorization language written into your purchase contract now, before you need it, so it's not a favor you're asking for later.

The piece nobody mentions until it bites them is the seller's motivation to actually sign that authorization letter. Got a friend who had a seller cooperate verbally and then drag their feet on the written consent for three weeks because they got cold feet about the deal and figured stalling the plat was a soft way to kill it without triggering default. By the time the letter showed up, two of his 45 days were gone and the county clock hadn't even started. So before you frame this as a county question, it's a seller question first.

Get the authorization language drafted into the contract itself or as an exhibit at signing, not as something you go back and ask for during due diligence. Some purchase agreements in Georgia already have a cooperation clause but it's usually vague, and "cooperation" doesn't automatically mean the seller will execute a consent-to-apply form on day one. The county in Putnam and Baldwin I've seen work in both directions depending on who's at the counter, but the application generally needs a notarized letter from the record owner naming you specifically as the applicant. If your seller is an LLC or estate, add another week minimum to get the right signatory.

Georgia counties vary a lot on this but the core mechanic is usually the same. You need the record owner to sign the application as the applicant of record, or sign a letter of authorization naming you as their agent. Had a seller back out of signing that authorization on a parcel in Spalding County in 2021 and I lost six weeks of review time I was counting on, plus the $3,400 in engineering fees I'd already spent on the preliminary plat package. The contract language is everything here. If your purchase agreement doesn't explicitly require the seller to cooperate with pre-close entitlement applications, you are asking for a favor, not enforcing a right, and sellers get cold feet about signing county paperwork for a deal that hasn't closed. On a 45-day DD window with a 90-day county clock, you're not getting through review before close no matter what you do, so the real question is whether you can get the application submitted and accepted before DD expires, then negotiate a closing extension tied to review completion. That's the structure I'd be building right now, not assuming the clock just runs automatically.