The Navigation District and How Land Works in Port Mansfield

Port Mansfield is different from almost every other town in Texas, and the difference starts with the ground under your feet. The town is not incorporated. The land itself, roughly 1,760 acres, is owned by the Willacy County Navigation District, the public entity that also operates the Port of Port Mansfield. When you buy a home here, in most cases you are buying the house and taking over a long term lease on the lot from the district. It sounds unusual, and it is. But it has worked here for decades, hundreds of families and businesses hold these leases, and once you understand the structure it is straightforward. This page explains how it works in plain language. If you have a question this page does not answer, call us. We deal with district leases on nearly every transaction we close.

Who owns the land in Port Mansfield

The Willacy County Navigation District owns and operates the property that makes up Port Mansfield. The district is a political subdivision of the State of Texas, governed by an elected board of navigation and canal commissioners, with a port director running day to day operations. Anyone who wants to build a home or open a business in town leases their site from the district. There are roughly 800 leases in Port Mansfield covering homes, businesses, and vacant lots. Every property in town is leasehold. There are no fee simple parcels.

How the land leases work

Here is the basic structure as the district describes it:

The district enters into leases for residential and commercial purposes for terms of up to fifty years. Lease rates are set per front foot of your lot per year, by zone. Under the district's 2025 revised rates: waterfront residential lots are $14 per front foot, secondary residential lots one row back are $10, interior residential lots are $8, some residential blocks are $7, and harbor commercial leases are $24 per foot. Every lease also carries a $75 annual heavy debris fee. A typical 50 foot interior lot runs about $475 per year all in; a 50 foot open waterfront lot about $775. Lease payments are made to the district, which accepts payment online through the port website or at the district office in Raymondville. The lessee owns the improvements. Your house, bulkhead, dock, and other structures are yours. The dirt belongs to the district.

Here is the part that matters most for buyers: when we represent you on a purchase, we request a brand new 50 year lease from the district at closing as a standard part of every offer, regardless of how much time was left on the seller's lease. That does two things. Lenders that finance leasehold homes require a minimum remaining lease term, and a fresh 50 year lease clears that hurdle automatically. And it gives you maximum security in your investment from day one.

What happens to the lease when a home sells

Leases in Port Mansfield transfer with the sale of the home. At closing, the buyer signs an Assignment of Lease and the new 50 year ground lease along with the standard closing paperwork, and pays two district fees: $250 for the Assignment of Lease and $125 for the new lease. The fees are per lease, so a property that spans two lots with separate leases means two assignments and two new leases ($750 total).

Timing is the local wrinkle worth knowing: the district board approves transfers at its monthly meeting on the second Wednesday of each month. Closings are usually scheduled the week before the meeting so the title company can deliver a complete packet in time for the agenda, and funding and possession happen a day or two after board approval. We build this into the contract timeline up front so buyers and sellers know exactly when to expect possession, with no surprises.

Two practical notes from experience. First, after closing, confirm with the Willacy County Appraisal District that the lease transfer was recorded in your name. The district itself has publicly flagged past cases where the appraisal district did not update records after a transfer, which can cause tax bills to go to the prior lessee and can block a building permit application. Give it about a month after closing, then call and verify. We walk our buyers through this step. Second, if you do not receive an annual Willacy County tax bill for property you lease, that is a sign the records may not have been updated. Check with the appraisal district.

Property taxes on leased land

Even though the district owns the land, lessees are responsible for property taxes assessed on their leasehold interest and improvements through the Willacy County Appraisal District. Your tax bill comes from Willacy County like anywhere else in the county, and yes, primary residents can claim a homestead exemption on a leasehold home here. For tax rates on a specific property, with and without exemptions, check with the Willacy County Appraisal District.

Financing a home on leased land

This is the question we get most. Yes, homes on district leases in Port Mansfield get financed, and it happens routinely. Because the lot is leasehold rather than fee simple, some big national lenders will not touch it, and leasehold lenders require a minimum remaining lease term, which is exactly why we request a brand new 50 year lease at closing on every purchase.

Cash purchases are also common here, especially on fishing cabins and second homes.

If you are starting the loan process, call us first. We can tell you which lenders have actually closed leasehold deals in Port Mansfield recently and save you weeks of dead ends.

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