Along this coast the ground is sand, fill and a high water table, and the foundation is the one part of a property you cannot see and cannot fix cheaply. The estudio de suelos —the geotechnical report— is the document that speaks to it, and what you should ask for depends on what you are buying.
A geotechnical engineer prepares the estudio de suelos with borings and laboratory testing, and it feeds the structural design filed with the licencia de construcción, the building permit. For a dúplex (two-level unit) that turns into different questions: asking for the report that will support work not yet built is not the same as asking for the one that supported a building put up years ago. The report states what the exploration found and what foundation the engineer recommended; it does not certify that the work was built to that recommendation, it does not replace the environmental permit where mangrove, a water setback or a ciénaga is involved, and it does not assert that the property is sound today. Where no report exists, what remains is rebuilding the file: approved drawings, the filed permit, and the history of repairs the owners' association has voted.
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.
In Manzanillo del Mar the difficulty is not reading a registry record: often there is none to read. Much of what is offered never entered the registry at all, and what the counterparty holds is possession documented in private papers, with an acta de colindantes, a neighbors' boundary statement, and sometimes a sworn declaration before a notary, none of which is title of ownership. That moves the process to authorities absent in the other sectors: the Agencia Nacional de Tierras, the national land agency, where the soil belongs to the Nation; IGAC, the cadastral institute, and the district cadastre to identify the parcel; and the corregidor or the police inspector when occupation is disputed. Verification becomes a matter of fieldwork and mapping before notarial work: comparing the survey against the cadastral record and against what is actually fenced, because the same lot has been sold under different descriptions. The counterparty is usually a local family or a go-between with no written mandate, and that mandate has to be requested. Infrastructure is not handled by any single utility: a well or tanker water, a septic pit, and a side road whose upkeep is not always assigned to anyone.
What is specific to Manzanillo del Mar
A beach village north of Serena del Mar, where the original town still sits alongside the new complexes. A mixed market: social housing, beach condominiums and unserviced lots. Access is via the Manzanillo road off the Anillo Vial; the final stretch is not always paved to the same standard.
- whether the lot is public wasteland of the Nation, in which case it is allocated rather than sold and no private deed can cure it
- whether there is a right of way to the beach and where it runs, a constant source of litigation between neighbours
- the land use the POT assigns it, because much of what is marketed as residential is still classified otherwise
What to verify, step by step
- Ask who signed the estudio de suelos and request the full report with its boring logs, not the cover sheet.
- Confirm with the curaduría urbana —the private office that issues building permits— whether that report is in the permit file, and whether the approved drawings match what stands on site.
- Ask Cardique whether the land is affected by mangrove, a water setback or a ciénaga, since that governs what can be founded there.
- Review what belongs to dúplex units and is not covered by the report alone: 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.
- Add what the ground in Manzanillo del Mar imposes: whether the lot is public wasteland of the Nation, in which case it is allocated rather than sold and no private deed can cure it; whether there is a right of way to the beach and where it runs, a constant source of litigation between neighbours and the land use the POT assigns it, because much of what is marketed as residential is still classified otherwise.
- If no report exists because the building is old, commission an engineer to assess its present condition and ask the District for whatever risk information it holds on the property.
Mistakes that cost money
- Accepting the neighbouring lot's report. Exploration is site-specific, and in coastal fill it changes from one property to the next.
- Reading the report as a certificate that the building was properly built. It records what the engineer recommended, not what the builder did.
- Buying with a visible crack and a verbal promise that the administración will repair it. What counts is the minute in which the owners voted the work and how it is paid for.
Frequently asked questions
- Can the soil study for a dúplex (two-level unit) be sent to me by email?
- Yes, it is a file and can be reviewed from abroad. The person who has to read it with judgement is an engineer, not the broker.
- What if the seller says the report was lost?
- Ask the curaduría for the permit file, where it was filed, and in parallel order an assessment of present condition.
- Does the soil study cover beach erosion?
- No. That is a separate question, put to the environmental and maritime authorities rather than to the geotechnical engineer.
Where to check it
- Curadurías Urbanas de Cartagena — whether a current building or subdivision permit exists and exactly what it authorises
- Cardique, autoridad ambiental del Canal del Dique — environmental permits, water setbacks and mangrove or wetland constraints
- Alcaldía Mayor de Cartagena de Indias — property tax, betterment levies and District procedures
- Cartagena de Indias — the rules of the municipality Manzanillo del Mar belongs to
Official bodies. Specific figures are requested there, not copied from a listing.
Updated 2026-11-06
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