30-Year Leases in Thailand: A Guide for Foreign Buyers

Suppose a Thai owner advertises a house and its land for ฿6 million. That is an offer to sell ownership of both. It does not automatically mean the owner will offer a lease instead.

A foreign buyer could ask about two different arrangements:

In both cases, the land stays in the landowner's name.

The owner may accept one of these arrangements, negotiate a different price or insist on an outright sale. There is no automatic leasehold discount.

When you buy the building separately, the agreement should distinguish its purchase price from the land lease payment. The building transfer and land rights need to be arranged together: buying a house is little use without the right to keep it on the land and live in it.^[4]

What needs to be registered?

A 30-year lease needs a written agreement and registration at the Land Office. Without registration, an ordinary lease for more than three years is generally enforceable in court for only the first three years.^[1:1]

If you are also buying the house, its ownership transfer needs to be properly documented and registered separately from the land lease.^[4:1] Before committing money, have your lawyer check the seller's ownership, the building documents, access to the property and any existing mortgages or other registered rights.

A lower price does not necessarily mean better value, because leasehold and permanent ownership leave you with different things at the end.

For a hypothetical example, suppose an owner wants ฿6 million to sell the whole property but would accept ฿5 million for a 30-year lease of the house and land. You save ฿1 million today. However, at the end of the lease, the owner still has the property and your right to use it ends.

Whether that is attractive depends on how you plan to use the home, what comparable homes cost to rent, who pays for maintenance and how easily you could sell the remaining lease years.

Buying the building separately changes the comparison again. You would own an asset, but its usefulness and resale value would depend heavily on the land rights that go with it.

Judge the deal by the rights and years you can actually secure—not by treating a lease as discounted permanent ownership. A worked valuation example appears near the end of this guide.

Renovating and renting it out

Settle these permissions before signing, particularly if you plan to improve the house or earn rental income.

Under an ordinary lease, alterations need the owner's permission. Renting the property to someone else and transferring the lease also need permission in the agreement or the owner's later consent.^[3:1]

The contract should make clear what work is allowed, who pays for repairs and whether you can rent the home out. Any building work or rental activity must also follow the rules that apply to that activity.

Selling before the lease ends

You do not necessarily have to keep the home for the full 30 years. If transfers are allowed, you can find a buyer for your remaining rights.

For example, selling after 10 years normally means selling 20 years of use. A fresh 30-year term would require a separate arrangement with the landowner; it does not happen automatically when the buyer changes.^[3:2]

The resale price is whatever a buyer will pay for those remaining rights. It is not automatically two-thirds of your original payment just because two-thirds of the term remains.

Check whether the owner must approve the buyer and whether any transfer charges apply. If you own the house separately, its sale needs to be coordinated with the transfer of the land rights.

What if the landowner sells?

An ordinary sale of the property does not, by itself, end the existing lease. The new owner takes over the landlord's position for that lease.^[5]

That protection should not be confused with a guarantee that every separate promise—such as a future renewal—will bind a new owner.

Yes, another lease can be agreed. But you should not assume that today's agreement guarantees it.

Some offers describe arrangements such as “30+30+30” as 90 years of use. The important question is not the headline total; it is how much time you are legally securing now.

In a case involving a 30-year lease and two prepaid renewal periods, Thailand's Supreme Court rejected the advance renewal promises because the arrangement attempted to secure 90 years from the outset.^[2:1]

This does not mean that people can never agree another lease. It means that a promise made today is not a substitute for securing a valid new term later.

At the end of your lease, continuing may involve a new agreement, registration and further payment. Without a valid arrangement allowing you to stay, your right to occupy ends.

If you lease both the house and land, you hand the property back as agreed. You do not receive ownership merely because you have occupied it for 30 years.

If you own the house but lease the land, the answer depends on the land rights and the end-of-term agreement. Owning the building does not, on its own, give you a permanent right to leave it there or keep living in it.

One right used to support separate building ownership is called superficies. When it ends, the law provides for removal of the building and restoration of the land, or for the landowner to offer to buy the building at market value. It does not automatically require the landowner to buy it.^[6]

Moving or demolishing a house may be impractical. The useful questions to settle upfront are whether the owner will buy it, how any payment will be calculated, or whether it must be removed or handed over.

Do not assume either that your house automatically becomes a free gift to the landowner or that someone must reimburse you for it.

These rights serve different purposes. None of them gives you ownership of the land.

Superficies: owning a building on someone else's land

Superficies is a registered right that allows you to own a building on land belonging to another person. It can generally be transferred and inherited, subject to its terms and duration.^[4:2]

For a buyer, the benefit is that the house can be an asset to sell or leave to family. However, the documents still need to give you—and any future buyer or heir—the land-use and access rights needed to make the house useful.

Separate ownership is not essential simply to enjoy a home. A lease covering both house and land can provide that use without buying the building.

Sap Ing Sith: a transferable right to use the property

Sap Ing Sith is a different registered property-use right, lasting up to 30 years. The law expressly allows it to be transferred, inherited and mortgaged.^[7]

Its practical advantage is that the right to transfer it is built into the law. You can sell the remaining term through a registered transfer without needing fresh permission from the landowner. Selling after 10 years still leaves the buyer with 20 years, not a new 30.

For a house, the land must have a Chanote title deed, and the right must cover the whole plot on that title, not just a selected part. Buildings you construct or alter generally become the property owner's when the right ends, unless you agree otherwise.^[7:1]

The owner must be willing to establish it. An ordinary lease does not automatically become Sap Ing Sith.

Usufruct: using a home for your lifetime

A usufruct gives you the right to use and benefit from someone else's property. It can be registered for your lifetime rather than a fixed 30-year period.^[8]

For example, someone who obtains a lifetime usufruct at 55 and lives to 95 could have 40 years of use.

The trade-off is that the right ends when its holder dies. It is therefore more relevant to someone prioritising their own lifetime use than to someone wanting to leave the remaining years to family.^[8:1]

Possibly, but do not assume that a standard lease automatically passes to your family.

An ordinary lease can end when the tenant dies, even if it was registered and paid for upfront. However, Department of Lands guidance also recognises inherited lease rights where the parties agreed that the lease could pass to heirs, as well as certain special arrangements.^[9]

This needs to be dealt with when the agreement is prepared. Ask your lawyer to confirm what your family could receive, how it would be registered and whether the arrangement would remain effective if the land changed hands.

With a suitably arranged house-and-land lease, your family may inherit the remaining right to use the home. If you own the building separately, they may inherit the building too—but they still need land rights that survive and allow them to use it.

Sap Ing Sith expressly allows inheritance of the remaining term. A lifetime usufruct in your name does not pass to your heirs.^[7:2][8:2]

The main questions above apply to most buyers considering these arrangements. The next two examples are for readers who want to understand the financial side in more detail.

Putting a value on 30 years of use

Return to the hypothetical comparison: ฿6 million for permanent ownership versus ฿5 million for a 30-year lease of the entire property.

Assume the property will still be worth ฿6 million in 30 years, measured in future baht. Also assume a hypothetical 5% annual return for comparing money now with money later, with otherwise identical costs and benefits during the term. Taxes and transaction fees are left out.

At that rate, approximately ฿1.39 million today would grow to ฿6 million in 30 years. Subtracting that future ownership value, expressed in today's money, from the ฿6 million purchase price gives approximately ฿4.61 million for the first 30 years of use.

On those assumptions, the ฿5 million lease costs about ฿390,000 more than the calculated value.

This is an illustration, not a property valuation or a forecast of investment returns. Different assumptions about future property value, maintenance or returns change the answer. It also assumes the entire property returns to the owner; a deal involving separate house ownership needs a different calculation.

Why might a lease arrangement include a loan and mortgage?

Here, you would be lending money to the landowner, not borrowing to buy the house.

Law firm Duensing Kippen has proposed an arrangement separating payment for the first lease term from money intended for future terms. The latter is documented as a loan, secured by a mortgage over the land.^[10]

A simplified, hypothetical example, leaving out interest and expenses:

The owner receives the money upfront. The intended protection for you is a secured repayment claim for future periods that are not supplied.

This is a proposed structure, not a guaranteed workaround for the lease limit. Its usefulness depends on the loan and repayment obligation being valid. Registering a mortgage does not make an invalid debt valid.

What would the mortgage actually do?

A mortgage secures money owed to you. It does not give you ownership of the land or automatically extend your right to live there.^[11]

The land can still be sold with the mortgage attached. A buyer seeking to have it removed would normally need the debt settled or your agreement to release it.

If a valid secured debt becomes due and remains unpaid, recovery can involve formal notice and court proceedings to have the property sold at auction. A foreign lender can recover money from that sale without becoming the landowner. The amount recovered depends on the sale proceeds, costs and any claims taking priority over yours.^[11:1]

Financial protection and permission to stay are separate matters. You may have to leave when the lease ends while pursuing repayment separately.

Start with the home you want, how long you expect to use it and whether you may want to sell or pass it on. Then compare the actual price with the rights available—not simply the label “leasehold”.

Before committing, have an independent Thai property lawyer check that the documents and registration arrangements match what you have agreed.

Considering a house in Pattaya? Contact Blue Horizon Condos to discuss the property and your plans. We can help establish which arrangements the owner is willing to offer, so you can assess a real proposal rather than an assumption.