Understand what you are buying today
In a preconstruction transaction, you do not immediately receive a finished, individually registered apartment. You sign rights and obligations concerning a future unit. The value of that promise depends on who controls the land, existing permits, project finance, and the contract's response when circumstances change.
Request a written explanation of the legal structure: future sale, reservation, promise, retention of title, or another form. The name is not a marketing detail. The document determines when obligations arise, what each payment purchases, and when you can register final ownership.
Contract certification is a starting point
Supreme Decree 4732 requires contracts related to future sale, retention of title, and other preconstruction forms to receive certification against abusive clauses from the consumer authority before signing. Request a copy and confirm that it covers the exact document presented to you.
Certification does not guarantee the project and does not replace your lawyer. It controls contractual content. You still need to review the owner, developer, builder, powers, land, liens, permits, project finance, and consistency across annexes, plans, and advertising.
Land, owner, and authority to sell
Request a current Folio Real for the land, the deed, and documents showing who can dispose of it. If the developer is not the owner, review the public instrument granting authority. Identify mortgages, notices, and restrictions, and understand how they will be released before units are individualised.
Visit the site and match its registration, area, location, and boundaries. Find out whether the project spans one parcel or several and whether all are covered by the same structure. A well-described apartment contract remains weak when the land or authority to build is unclear.
Permits, plans, and specifications
The decree's contract parameters include authorized plans and municipal permits, area, technical characteristics, common elements, and start and delivery dates. Request the documents rather than only an application number. Confirm whether they are approved, under observation, or still being processed.
Attach a quality specification covering structure, walls, floors, windows, fittings, elevators, climate systems, and common equipment. Define area tolerances and compensation if the finished unit is smaller. Identify parking and storage and state whether they will have separate registrations.
Price, installments, and protected funds
The contract should list all price installments and every additional charge. State currency, conversion reference, dates, milestones, and consequences of delay for both parties. Decree 4732 identifies unilateral price changes and uncontracted charges as abusive practices.
Ask which account receives funds, who owns it, and how money is directed to construction. Where a trust, bank facility, insurance, or audit exists, request documents and understand its limits. A simple receipt proves payment but does not prevent misuse of project funds.
Delivery date and changes
Do not accept an indicative date without consequences. Define physical delivery, minimum habitability, active services, common areas, and documents due at handover. Separate legitimate force majeure from developer decisions. Avoid language broad enough to postpone delivery for almost any problem.
The decree treats failure to meet deadlines, technical features, common-area promises, and unilateral change of their use as abusive practices. The contract should establish notice, cure, penalties, and exit rights. Keep copies of advertising and every plan version supplied.
Individualisation and final title
Ask which steps remain for horizontal property, individual plans, cadastre, taxes, and a separate Folio Real. Assign responsibility and timing. Delivery of keys is not delivery of a registrable title. The contract should require title delivery after payment, with consequences for failure.
Before each material payment, review physical progress and documentary compliance. Preserve transfers, receipts, contracts, amendments, emails, and marketing. Do not sign an amendment under pressure at the same meeting. Changes to price, unit, area, or date deserve independent review.
- Verify certification of the exact contract version.
- Review the land Folio Real, powers, and liens.
- Request approved permits and attached specifications.
- Define payments, delivery, penalties, and registration.
Evaluate preconstruction by its downside
Compare the discount against a finished unit with the time and risk assumed. Add rent while waiting, financing cost, possible equipment changes, and reduced liquidity. A promise of appreciation cannot compensate for a weak contract or incomplete permits.
Use your own lawyer, not only the professional who prepared the seller's contract. For a large amount, technical and financial review may also make sense. If a developer blocks basic document checks or demands immediate payment to preserve an alleged offer, that pressure is itself information about risk.
This guide provides general information, not legal, tax, financial, or investment advice. Confirm current requirements and get advice for your specific transaction.



