Due Diligence in Costa Rica: The 9 Checks Before You Sign
The homework that protects your money between the offer and the closing table.
Due diligence for Costa Rica real estate comes down to nine checks: the National Registry title, liens and annotations, the registered survey, a water letter, municipal zoning, maritime zone status, tax and HOA balances, the owning corporation, and a safe closing through escrow and a notary. Run them in order, before you sign, and most surprises disappear.
We have watched buyers in Playas del Coco fall in love with a house in an afternoon. That part is easy. The part that protects your money is the two to four weeks of homework that follows the offer. Costa Rica has a solid, centralized property system, better than many buyers expect, but it only protects people who actually look. Here is the due diligence checklist we walk through with every buyer, and what each check is really for. A good attorney runs these for you; your job is to make sure nobody skips one. If you want the bigger picture first, start with our guide on how to buy a home in Costa Rica.
1. Pull the title at the National Registry
Almost every titled property in the country lives in one database, the Registro Nacional. Each property has a folio real number (Guanacaste properties start with 5), and anyone can create a free account and look one up at rnpdigital.com, the registry's online portal. The report shows the registered owner, the property's recorded size, and its history. The first question is simple: is the person selling you the property the person the registry says owns it? If the names do not match, stop until your attorney explains why. At closing, your notary will order a paid certified version of this report, but the free search on day one costs you nothing.
2. Read the liens and annotations, not just the owner line
The same registry report has a section for gravámenes y anotaciones: mortgages, liens, court annotations, easements, and pending disputes. This is where problems hide. A mortgage is not a dealbreaker (it gets paid off at closing), but a lawsuit annotation or an embargo can freeze a sale for months. Easements matter too. A recorded easement might be harmless, like a shared driveway, or it might mean a neighbor has the right to run a road or water line through the middle of your lot. Ask your attorney to explain every single entry in plain language. "It's standard" is not an explanation.
3. Match the plano catastrado to the ground you walked
Every titled property should have a plano catastrado, a registered survey map on file with the National Cadastre. Your attorney checks that the survey matches the title's recorded area, and ideally you hire a topographer to confirm the survey matches the physical property: the fences, the walls, the lot corners. Mismatches are common in older properties, and they matter. We have seen listings where part of the garden, or even part of the pool deck, sat on the neighbor's lot. A fresh survey costs little compared to a boundary dispute, especially for land purchases.
4. Get the water letter before you dream about building
Water is the check foreign buyers skip most often, and the one that hurts most. A carta de disponibilidad de agua is a water availability letter issued by AyA, the national water utility, or the local ASADA (the community aqueduct association) confirming the property can receive legal water service. No water letter, no building permit. For a finished home, confirm the existing meter and connection are legal and registered to the property. For a lot, make the water letter a condition of closing. In dry Guanacaste this is not paperwork theater; some areas genuinely have no capacity for new connections.
5. Ask the municipality what the land is actually for
Zoning here is local. The uso de suelo is a land use certificate from the municipality (for Playas del Coco and Ocotal, that is the Municipality of Carrillo) stating what the property can legally be used for: residential, commercial, mixed, density limits, height limits. If your plan is a vacation rental, a second unit, or a small business, confirm the use is permitted before you sign, not after. Your attorney should also check for road access. A beautiful lot with no legally recorded access to a public road is a problem you do not want to own.
6. Confirm it is titled, not maritime zone concession
Costa Rica's Maritime Zone Law (Law 6043) covers the first 200 meters inland from the high tide line. The first 50 meters are public land that nobody can own or build on. The next 150 meters are the restricted zone, where property is typically held as a municipal concession, a long term lease from the government, usually granted for 5 to 20 years at a time, and foreigners cannot hold the majority interest in a concession outright. Concession property can be a fine purchase, but it is a different animal with different rules and renewal risk. Know which one you are buying. We explain the differences in our post on concession vs. titled properties.
7. Check that taxes, services, and HOA fees are paid up
Costa Rica's annual property tax is 0.25% of the registered value, paid to the municipality, and the transfer tax at closing is 1.5% of the higher of the sale price or the registered value. Before closing, your attorney should get confirmation from the municipality that property taxes are current, because unpaid balances follow the property, not the seller. The same goes for water and electric bills, the annual corporation tax if a company owns the property, the luxury home tax if the construction value is high enough (ask your accountant for the current threshold), and, in a condo, HOA fees. Request a letter from the HOA administrator showing a zero balance and ask for the condo bylaws while you are at it. Bylaws can restrict rentals, pets, and renovations.
8. If a corporation owns it, investigate the corporation
Many properties here are held inside a Costa Rican corporation, and sometimes you buy the company shares rather than the property itself. That can be fine, but it changes the homework. Share purchases mean you inherit the corporation's entire history: its debts, tax filings, and any claims against it, none of which show up on the property title. Your attorney should verify the corporation is active, its taxes are filed, its legal representation is current, and the person signing actually has the power to sell. When in doubt, buying the property out of the corporation into your own new entity is often the cleaner path. This is exactly why we tell everyone that hiring a good lawyer in Costa Rica is the best money in the whole transaction.
9. Close through escrow and a notary, never a wire to the seller
The last check is about how the money moves. In Costa Rica, closings are executed by a notary public, who here is a specially licensed attorney responsible for the transfer deed and its registration. Your deposit and purchase funds should sit with a third party escrow provider registered with SUGEF, Costa Rica's financial regulator, and be released only when conditions are met. Never wire funds directly to a seller, and treat any pressure to skip escrow as a red flag. Expect the escrow company to ask detailed questions about the source of your funds; that is anti money laundering compliance, and a provider who does not ask is a provider to avoid.
What this means for your purchase
None of this should scare you off. Due diligence in Costa Rica real estate is genuinely manageable: a central registry, searchable records, and a standard two to four week diligence window written into most purchase agreements. The buyers who get hurt are the ones who fall for a handshake deal and skip the boring parts. We are not attorneys and this is not legal advice, so confirm every legal and tax point with a licensed Costa Rican attorney and accountant. What we can do is connect you with the professionals we trust and walk the process with you. Browse our current listings or send us a message on WhatsApp, and we will tell you honestly what any property's diligence is likely to turn up.
Frequently asked questions
How long does due diligence take in Costa Rica?
Most purchase agreements in Costa Rica include a due diligence period of two to four weeks. That is usually enough time for an attorney to pull the National Registry title, check liens, review the survey, and confirm water, zoning, and tax status. Complex cases, like corporate share purchases or maritime zone concessions, can take longer.
How do I do a property title search in Costa Rica?
Titled properties are recorded in the Registro Nacional under a folio real number. Anyone can create a free account at rnpdigital.com and look up the registered owner, property size, and the liens and annotations section. For closing, a notary orders a paid certified report. Your attorney should interpret every entry before you sign.
What is a water letter and do I really need one?
A water letter (carta de disponibilidad de agua) is issued by AyA or the local ASADA and confirms a property can receive legal water service. Municipalities will not issue building permits without one. If you are buying a lot to build on, make a valid water letter a written condition of closing.
Cover photo: RDNE Stock project, Pexels · Photo: RDNE Stock project, Pexels
