Technical inspection before the promesa: a dúplex (two-level unit) in Serena del Mar

A title review tells you who may sell; a technical inspection tells you what is being sold. They are two separate engagements, both paid for by the buyer, and in Serena del Mar the second one is usually skipped because the buyer is not in the city to open the door.

What gets inspected is not the same checklist for every property: when what you are buying is a dúplex (two-level unit), the report has to address what the nature of that property actually puts at risk, not a generic form about damp patches and sockets. That matters for money and for timing. For money, because a repair not found before the promesa de compraventa is signed gets paid for afterwards by the buyer, and in a propiedad horizontal (condominium regime) it can end up shared among all owners through a special assessment. For timing, because before the promesa whatever turns up is a matter for negotiation, and afterwards it is only a claim. The report is signed by a professional who answers for what it says; nobody signs the brochure.

A dúplex is bought differently because what you see and what is recorded may not be the same thing. Two levels joined by an internal staircase are lived in as one home, yet the registry may still see two: two matrículas inmobiliarias (registry folios), two ownership shares, two chains of title and two separate arrears accounts with the building. That gap between the physical thing and the legal thing organizes the entire purchase. If there are two folios, you are really signing two acquisitions that end up tied in fact but not in law, and each one can be taxed, mortgaged, attached and sold on its own, so a future buyer may find half a home on offer. If there is a single folio, you need to know when and how the merger happened, because joining units is an amendment to the reglamento and not merely building work. What gets examined here, then, is the identity of the property before its condition: how the unit came into being, which document recognizes it, and whether the copropiedad was ever told. For a buyer abroad, each folio may also carry its own paperwork and its own power of attorney.

Serena del Mar runs on rules of its own. The land is developed under a plan parcial, a master plan adopted by District decree, and that decree, not a general reading of the POT, the city land-use plan, is what sets uses, land transfers to the city and development obligations for a given lot. So the document to request here is the adopting decree with its drawings; the land-use certificate that serves in a settled neighborhood is not enough. The second difference is a layer of private government that exists nowhere else: the ciudadela, the master community, has its own statutes, an architectural committee and design rules governing façades, fences and renovations, and those rules follow the property on resale, binding a buyer who never negotiated them. The third is the counterparty: you usually deal with the developer or with a fiduciaria, a trust company, administering the stages, and the unit's registry record descends from a very large parent parcel subdivided in phases, so title is verified upward, to the matriz, the parent record, and to the deeds transferring land to the District. Infrastructure was built by the developer: what matters is whether it has been handed over to the utility or is still privately held.

What is specific to Serena del Mar

What to verify, step by step

1. Ask the curaduría urbana (the private permitting office) for the licencia de construcción and the approved plans, and check what use, area and height that permit actually authorised against what you are being shown. Anything built beyond it is not cured by the deed.
2. What the report has to address point by point for a dúplex (two-level unit): whether both levels sit on a single matrícula inmobiliaria (registry folio) or on two, since that decides whether it conveys as one property or as two; whether the internal staircase appears on the plans approved with the licencia de construcción or was cut later to join two units and how the coeficiente de copropiedad was restated after the merger, because if the reglamento was never amended the dues may still be billed twice.
3. And what the same report should pick up for the sector in Serena del Mar: which stage of the master plan the property sits in, because the development obligations and infrastructure timelines differ between them; which amenities are actually built and which are merely approved, a distinction the sales office does not always draw and how the master-community dues work alongside the individual complex's dues, which are two separate charges that add up.
4. Engage the visit with an engineer or architect you hire yourself, not the one the seller offers, and require a written report with dated photographs, a signature and the professional's licence number. Ask Camacol Bolívar who carries out technical surveys in the region and ask for references you can check.
5. Agree in writing with the seller on the date of the visit and on access to the property before signing the promesa, and attach the report to the promesa together with the agreed repairs and who pays for them.
6. Ask the District whether any administrative proceeding is open against the property for building without a permit or for breaching planning rules, because that follows the property and not the seller.

Mistakes that cost money

• Accepting the report the seller or the developer hands over. The useful report is the one the buyer commissioned and can question.
• Leaving the inspection until after the promesa, when the price is already agreed. Whatever surfaces then is argued from the weaker position.
• Confusing the technical inspection with the title review. One looks at the construction and the other at the chain of ownership; you need both, and not from the same person.

Frequently asked questions

Can the inspection be done without being in Cartagena?

Yes, and it usually is: you hire the professional, arrange access with the seller and receive the signed report. What you should not delegate is choosing who does it.

Does the inspection change with the type of property?

In substance, yes. What has to be verified on a dúplex (two-level unit) comes from the nature of the property —what is privately owned, what is common property, what the permit authorises— and not from a general list of finishes.

Who pays for repairs the report turns up?

Whoever agreed to in writing. If the report is attached to the promesa with the fixes and who owes them, you have something to enforce; if it lives in an email, you do not.

Where to check it

• Curadurías Urbanas de Cartagena — whether a current building or subdivision permit exists and exactly what it authorises
• Camacol Bolívar — the industry's own figures on housing starts and launches in Bolívar
• Alcaldía Mayor de Cartagena de Indias — property tax, betterment levies and District procedures
• Cartagena de Indias — the rules of the municipality Serena del Mar belongs to

Official bodies. Specific figures are requested there, not copied from a listing.

Updated 2026-11-06