If you’ve ever bought a mobile home park with “significant value-add through infill,” you already know the gut punch that comes about six months later.

The vacant lots aren’t filling themselves. The contractor you found doesn’t return calls. The home you ordered in March won’t be delivered until October. The buyer you found can’t get chattel financing. And the park you bought at a discount because of vacancy is now a vacant park that’s costing you money every month.

Welcome to the real infill experience — the one nobody puts in the pitch deck.

Why Infill Is Harder Than It Looks

The theory is clean: park has 40 empty lots. Each lot is worth $400/month in lot rent. Fill them, create $16,000/month in new NOI, refinance at 6.5% cap, walk away with $2.9M in manufactured equity. Simple.

The reality is a construction project masquerading as a real estate investment.

Here’s what actually needs to happen before a vacant lot generates rent:

Site prep. Utilities need to run to each pad. Many older parks have water/sewer stubouts that haven’t been touched in 30 years. Some are in the wrong location for modern home footprints. Budget for investigation, capping, re-routing.

Home sourcing. New manufactured homes from Clayton, Cavco, Champion — lead times are running 8-16 weeks in 2026. Want a specific floor plan? Add another month. The home that you penciled in for Month 2 arrives in Month 5.

Setup crews. Someone has to block the home, set the marriage wall (for double-wides), anchor to HUD code, run the electrical connection, complete the plumbing hookup, install skirting, and build the steps. These crews — good ones — are in demand and hard to schedule. In the Southeast, there are maybe 5-10 truly reliable setup contractors in any given metro area. They’re booked.

Permits and inspections. Every placement requires permits. Most counties require a HUD-compliant tie-down inspection before the home can be occupied. In some jurisdictions, that inspection has a 3-4 week queue. The home sits. The lot stays empty.

Financing for buyers. If you’re trying to sell the homes you place, your buyers need chattel loans. The primary chattel lenders — 21st Mortgage (Clayton’s captive), Triad Financial, Cascade — have credit minimums and documentation requirements. In a tightening credit environment, a meaningful percentage of your potential buyers won’t qualify. Your buyer pool just got smaller.

This is not a passive process. It is closer to operating a small home-building business inside your property management company. Most operators aren’t set up for it, and they find out the hard way.

What Actually Works

After placing homes in multiple parks across our portfolio, here’s what we’ve learned produces the best results:

Build relationships with manufacturers before you need them. Clayton, Cavco, and Champion all have regional sales reps who work with investors. Get in their pipeline early. Understand their current lead times, available floor plans, and volume discount thresholds. Operators who place 10+ homes per year get better pricing and priority scheduling than operators calling in for one home.

Develop a go-to setup crew in each market. Find two setup contractors in each of your target markets. Vet them thoroughly — references, licensing, HUD certification. Pay them on time. Throw them work consistently. When you have an urgent infill need, you want to be their preferred call, not a stranger.

Use a lease-to-own structure to bypass the chattel financing bottleneck. Instead of selling homes and waiting for your buyers to get financed, lease the home with an option to purchase. The resident pays a combined lot rent + home payment monthly. After 36-60 months, they can exercise their option. You carry the paper, keep the asset on your books, and maintain control. It fills lots faster because the barrier to entry is qualification for residency — not qualification for a $60,000 chattel loan.

Don’t buy more vacancy than your capital and team can handle. The most common infill mistake is buying a park at 40% occupancy thinking you’ll infill 60 lots in 12 months. Realistic pace for an operator without a dedicated infill team: 8-15 lots per year. A 20% vacant park with 15 empty lots is manageable. A 40% vacant park with 50 empty lots is a 3-4 year project — plan accordingly, or price it that way.

Underwrite the full infill cost. A home delivered and set on a pad — all-in, including site prep, setup crew, permits, and skirting — is running $85,000-$130,000 per home in 2026 depending on market and home size. That’s your capital requirement per vacant lot to activate it. Run that math before you buy.

The Upside Is Real — If You’re Prepared

None of this is meant to scare you off infill. When executed well, filling vacant lots is genuinely one of the best value-creation levers in real estate. The NOI you create is real, the cap rate math produces real equity, and the park you leave behind is a stronger, more stable asset.

But it rewards operators who treat it like the business it is. The operators killing it on infill right now have manufacturer relationships, setup crews on speed dial, a lease-to-own program ready to deploy, and capital budgeted to the last dollar. They’re running an operation, not waiting for something to happen.

Build the operation first. Then buy the vacancy.

If you want to see how we approach due diligence on value-add parks with infill potential, the Keel Team Mobile Home Park Due Diligence Playbook walks through our full site and financial evaluation process.

Keel Team has acquired and operates 50+ manufactured housing communities. For questions about mobile home park investing and operations, visit keelteam.com.