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 land is leased rather than owned outright, some big national lenders will not touch it, and the lenders that do require a minimum remaining lease term. That 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.
Resources
Willacy County Navigation District (Port of Port Mansfield)
Main office: 400 W. Hidalgo, Suite 200, Raymondville, TX 78580
Phone: (956) 689 3332 and (956) 689 2030
Website: portofportmansfield.com
Lease payments can be made online through the port website.
The utility district also keeps a staffed office in Port Mansfield itself with regular office hours.
Willacy County Appraisal District
688 FM 3168, Raymondville, TX 78580
Phone: (956) 689 5979
Website: willacycad.org
Port Mansfield Real Estate
Megan Knight, REALTOR®
310 Copano Dr., Port Mansfield, TX 78598
Phone: 956-398-4620
Email: Megan@PortMansfieldRealEstate.com
Common Questions
Do you actually own your house in Port Mansfield if the land is leased?
Yes. You own the house and every improvement on the lot outright. The Navigation District owns the land underneath, and you hold a long term lease on it that transfers when you sell.
How much is the land lease in Port Mansfield?
The district's 2025 rates run per front foot per year by zone: $14 waterfront, $10 secondary, $8 interior, $7 in some blocks, $24 harbor waterfront, plus a $75 annual heavy debris fee. Most residential leases in town land between roughly $400 and $800 per year. We check the exact lease on every listing.
How long are the land leases in Port Mansfield?
The Navigation District issues leases up to fifty years. When we represent a buyer, we request a brand new 50 year lease at closing as a standard part of every offer, so our buyers start with the full term regardless of what the seller had left.
What happens to the land lease when I sell my house?
The lease is assigned to the buyer at closing and a new lease is issued. The buyer pays the district $250 for the Assignment of Lease and $125 for the new lease, per lot. The district board approves transfers at its monthly meeting on the second Wednesday of each month, and possession typically follows a day or two after board approval.
Can I get a mortgage on a house that sits on leased land?
Yes, buyers finance leasehold homes in Port Mansfield regularly. Lenders require a minimum remaining lease term, which the new 50 year lease we request at closing satisfies automatically. Call us and we will point you in the right direction.
Do I pay property taxes if the Navigation District owns the land?
Yes. Lessees receive an annual tax bill from Willacy County on their leasehold interest and improvements, and primary residents can claim a homestead exemption. Verify specifics for any property with the Willacy County Appraisal District.
Is Port Mansfield a city with its own government?
No. Port Mansfield is unincorporated. The Willacy County Navigation District owns and manages the land, and the Port Mansfield Public Utility District handles water and sewer. County services come from Willacy County.
What happens when a 50 year lease runs out?
It automatically renews. And since buyers here typically receive a brand new 50 year lease at closing, the clock restarts at every sale, so expiration is rarely even in the picture.
Can the district raise my lease rate?
Yes. Lease rates are set by the District and revised from time to time; the current schedule is the 2025 revised rates. Rate changes apply by zone across town, not to one lot at a time.
Can I pay off or prepay my lease?
No. The lease is set up to be paid annually or biannually, and that is how the District runs it. There is no payoff or prepay option.
How does homeowners insurance work on a leasehold property?
The same as anywhere else. Policies are issued on leasehold homes just as they are on fee simple homes; you insure the house and improvements you own.
How much is flood insurance in Port Mansfield, and do all lots require it?
It varies from home to home. The flood zone drives the premium: much of the interior of town sits in zone X where flood coverage is often optional and inexpensive, while waterfront and canal properties in zones AE and VE carry higher premiums, and elevation above the base flood elevation earns real discounts. As a real world reference, the most recent gulf front waterfront policies Megan has seen ran roughly $2,500 to $3,000 a year each for flood and for windstorm. Lenders require flood coverage in mapped flood zones. Get a quote on the specific property early; we can point you to agents who write here.
Can I leave my Port Mansfield property to my kids?
Yes you can. The lease can be transferred, so the property passes on like any other, with the District processing the lease transfer.
Can an LLC or trust hold a Port Mansfield lease?
Yes. The entity's documents have to be sent to the title company, including the authorization showing who can sign on the entity's behalf. Build a little extra time into closing for that paperwork.
Is there a title policy on a leasehold purchase?
Yes. Leasehold purchases here close through a title company with a title policy, the same as a fee simple purchase.
How long does it take to close on a Port Mansfield property?
Even the quickest cash deal takes about 30 days, because every closing waits on the Navigation District's once a month board meeting to sign off on the lease assignment and transfer. Financed deals add the lender's timeline on top. We plan every contract around the meeting date.
Can I buy a property in Port Mansfield from out of state?
Yes, buyers do it all the time. Most documents can be signed electronically before closing, and the closing documents themselves can be completed with a mobile notary wherever you are.
Do I need a survey when buying on leased land?
Yes, in most cases. The exception is when the existing survey is fairly new and the seller provides a survey affidavit confirming nothing has changed since it was drawn.
What does a typical earnest money and option period look like here?
Earnest money is due within 3 days of the executed contract and typically runs 2 percent of the purchase price. Option periods vary, but on a single family residence with the necessary inspections, Megan usually writes 10 days for a nominal $150 option fee.
Are there short term rental restrictions? Can I rent my place on Airbnb or VRBO?
In most of town, yes you can. Some of the subdivisions and condo communities with HOAs prohibit short term rentals, but single family residences generally carry no prohibition. We confirm the rules on any specific property before you buy.
Can I buy multiple lots?
Yes. Plenty of owners hold more than one. Each lot carries its own District lease and its own transfer fees at purchase.