Glossary: 30 Terms You'll Hear Buying Land in Mexico

Buying land in Mexico means learning a new vocabulary, and most of it is Spanish. Not the Spanish of restaurants and beaches — the Spanish of deeds, registries, taxes, and bank trusts. The good news is that the vocabulary is small, and it maps onto ideas you already understand. This glossary covers the Mexican real estate terms you'll actually hear on the Oaxaca coast, grouped by where they show up in the process. Thirty terms, in plain English, with the five that matter most flagged at the top.

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How to use this glossary

Spanish words are written here the way you'll hear them, with pronunciation-friendly plain English next to each one. These are working definitions for buyers, not legal definitions. Mexican property law is detailed, and every contract is drafted by a notario who is legally responsible for it. Use this glossary to understand what you're reading and to ask better questions — and let the notario's word, and the written contract, always govern.

The titles

Titles & the registry

Every lot on the coast comes with a title situation, and these are the words that describe it. Getting them straight is most of the battle — and most of the expensive mistakes on this coast start right here.

Escritura pública

The full deed of ownership, drafted by a notario público, signed in their presence, and registered in the state's public property registry. Registration is the step that matters: it puts the title in the public record, where anyone can verify it. Everything else on this list is measured against it. We compare it with the alternatives in full here.

Acta de posesión

A document recording that someone is in possession of a parcel. It carries weight locally and has legal value, but it is not a registered deed and it is not proof of ownership. Converting one into an escritura can take months or years — and sometimes cannot be done at all. The full breakdown of what an acta can and can't do.

Ejido

Land owned in common by a farming community, governed by its assembly of ejidatarios (eh-ee-doh, "eh-HEE-doh"). No individual holds private title, and no individual can sell the land as if they did. Foreigners cannot hold direct title to ejido land; it must first be converted through dominio pleno. Everything about ejido land, including whether to buy it.

Comunal

Indigenous community land, owned and governed the same general way as ejido: by the community, through its assembly of comuneros. The same rules apply — no private title, no direct sale, and conversion only with the assembly's approval. The ejido article covers comunal land too.

Dominio pleno

The legal process that converts ejido or comunal land into fully private property. The community assembly must approve it, the paperwork runs through the national agrarian registry, and only after that can the land be sold with a clean private title. If someone offers you "ejido land, cheap, don't worry about the paperwork" — that sentence is the worry.

Registro Público de la Propiedad

The state's public property registry — the official record of who owns what. A deed only becomes real title when it is recorded here, and anyone can request certificates from it. If a lot has no history in the registry at all, that tells you something.

Folio real

The registry's file number for a property: its ID in the public record. Every registered lot has one, and it is how the registry tracks ownership, liens, and history. You will see it on every registry certificate.

Certificado de libertad de gravamen

A certificate from the registry confirming that the property has no liens, encumbrances, or other claims against it. Your notario pulls one during due diligence. If it comes back anything but clean, the deal stops.

Testimonio

The certified copy of your escritura that you receive after closing — the first copy of your deed, issued by the notario. It is the document you keep as proof of ownership; the original stays in the notario's archive.

Cláusula de admisión de extranjeros

The clause in a deed stating that a foreigner may hold the property. It is required for foreign buyers outside the restricted zone. Inside the restricted zone, the fideicomiso replaces it.

The deal

The transaction

These are the words you'll hear between your first offer and the day you walk out of the notario's office with your testimonio in hand.

Promesa de compraventa

The purchase promise: the binding contract signed once the seller accepts your offer. It fixes the price, the deposit (commonly 5–10%), the completion date, and what happens if either side backs out. Read it before you sign it, and have your notario read it too.

Notario público

A lawyer licensed and appointed by the state, with the authority — and the legal liability — to make a real-estate transaction valid. The notario verifies the title, calculates the taxes, prepares the escritura, and holds the funds at closing. A good one is the single best protection a buyer has. Why the notario matters more than anyone else in the deal.

Poder

Power of attorney: a document authorizing someone to act for another person. Sellers sometimes sell through a poder, which is legal and common — but the notario must verify it, and you should ask to see it.

Avalúo

A professional appraisal of the property's value. It is often required to calculate taxes and for any financing. On the coast, expect it to cost a few hundred dollars.

Fideicomiso

The bank trust through which foreigners hold title inside the restricted zone. A Mexican bank holds the deed; you are the beneficiary, with full rights to use, build on, rent, and sell the property. The trust renews in 50-year increments and is simply how foreigners own beachfront in Mexico. The mechanics, step by step.

Derecho de preferencia

The right of first refusal. On ejido or comunal land, the community or co-owners may have the right to match any outside offer before the land can be sold to someone else. It is one reason ejido conversions take time.

Cesión de derechos

A transfer of rights — most often heard on ejido land, where what is actually being offered is the seller's rights as an ejidatario rather than the land itself. As a foreigner you cannot exercise those rights, so a cesión on unconverted ejido land is a trap.

Traspaso

A transfer — usually of a lease, a business, or possession of a lot, rather than a registered title. If someone offers a "traspaso" of land, ask what exactly is being transferred. It is almost never a deed.

Contrato privado

A private contract between buyer and seller, signed without a notario. It can be a legitimate first step, like the promesa. On its own it does not transfer title — and if a seller offers a contrato privado as the final step, that is a red flag.

Apartado

A deposit paid to take a lot off the market while you finish due diligence. Commonly a few thousand dollars or a percentage of the price. Make sure the terms — refundable or not, and against what — are written down.

The costs

Taxes & costs

Closing costs surprise buyers more than any other part of the process. These are the words on the bill.

ISAI

The state property-acquisition tax (impuesto sobre adquisición de inmuebles, "ee-sigh"), calculated on the value declared in the escritura. It is the biggest closing cost — typically 2–5% depending on the state and municipality.

Predial

The annual property tax paid to the municipality. It is modest — usually a few hundred to a few thousand pesos a year depending on the lot — but it must be current before closing. Unpaid predial is a classic quiet problem that surfaces at the registry.

Plusvalía

The increase in a property's value over time — appreciation. You will hear it from sellers, and it is also a real tax concept: some municipalities charge a tax on the gain when a property is resold.

Arancel

The state's published fee schedule for notary and registry services. Notary fees follow this schedule, so they are predictable rather than negotiable — typically 1–2% of the price.

Gastos de escrituración

The closing costs of drafting and registering the deed: the notary's fees, the registry fees, and the related paperwork. Together with the ISAI, this is the bulk of your 5–8% closing budget.

Comisión

Commission — the broker's fee. On this coast it is usually paid by the seller; agree on who pays what in writing before you sign anything. A broker who takes commission from both sides without telling you is a problem.

Impuesto sobre la renta (ISR)

Mexico's income tax. It touches property in two places: sellers may owe ISR on the gain from a sale, and if you ever rent your place out, the rental income is taxable. Your notario calculates any seller-side ISR at closing.

Avalúo catastral

The municipal cadastral valuation of a property — the figure the local government uses to calculate predial and some taxes. It is usually well below market value, so do not confuse the two.

The land

Land, zoning & the coast

Two terms shape every coastal purchase: where you are allowed to buy, and what you are allowed to build.

Zona restringida

The restricted zone: land within 50 kilometers of the coast and 100 kilometers of the borders. Inside it, foreigners cannot hold direct title — they use a fideicomiso instead. On the Oaxaca coast, almost everything you will look at sits inside it. The 50km rule, explained.

Uso de suelo

The official land use for a parcel — what you are legally allowed to do with it: residential, agricultural, commercial, or protected. Check it before you buy. A lot with a stunning view that is zoned protected cannot be built on, no matter how good the price.

Skip these

A few terms you can skip

Every market has jargon that sounds important and rarely matters for a coastal lot. Usucapión — acquiring title through long, open possession — is a real legal path, but a slow, court-driven one you will not want to rely on as a buyer. Hipoteca (mortgage) you will hear if you finance; on this coast most foreign buyers pay cash, and the notario handles the paperwork either way. That is your thirty. If a term comes up that is not here, ask what it means in writing — and ask your notario, not just the broker.

You don't need to become a Mexican property lawyer. You need to know what the words mean — and when to ask.