Estudio geotécnico: conoce la pregunta bajo el terreno
Watch the explanation and read its transcript on Estudio geotécnico: conoce la pregunta bajo el terreno. To continue your review, also read Riesgo natural en un lote: mapas, estudios y condiciones para decidir and Levantamiento topográfico antes de comprar: alcance, entregables y límites de la medición.
Video, transcript and related readingThe report must address the project and show its limits; define questions and deliverables before comparing prices or promising a foundation solution.
Ask what you need to know to make the decision
Before searching for a soil study, explain the decision you want to make. You may need an initial review of a purchase alternative, information for siting or a study supporting a specific project. NSR-10 Title H distinguishes preliminary and definitive studies; that distinction supports commissioning a phase with an explicit purpose instead of a generically named document. Our editorial proposal starts with a short meeting identifying questions, background and expected outputs. Ask the professional what can be concluded within the scope and what would require later investigation. Do not purchase a promise that land suits anything whatsoever. Equally, a study cannot complete the legal, planning or environmental review of the property. Each question needs its own evidence. When several parcels remain under comparison, staged investigation can organise expenditure, provided uncertainty is retained and the initial phase is not presented as a definitive answer for foundations that have not yet been designed.
Supply a project brief that can be reviewed
Prepare the location, available background, topography if it exists and a description of what you imagine building. Distinguish preliminary ideas from dimensions or loads already supplied by another professional. Title H relates subsurface investigation to project characteristics, so changing the proposal may alter the relevant questions. Our editorial brief records the programme version and date to prevent a report answering for one house while the buyer already envisages several units. Include interventions that might form part of the idea, such as excavations or external structures, without prescribing their solution here. Ask the responsible person which information is missing and who should provide it. Where no design exists, avoid inventing precision merely to accelerate a quotation. A scope declaring assumptions and an update mechanism is preferable. Check that a commercial proposal identifies the same parcel and brief you supplied, rather than comparing assignments that appear equivalent only because both are called soil studies.
Define responsibilities and check the offered scope
Request identification of the person responsible for the report, background relevant to the assignment and an explanation of team roles. COPNIA Concept 44 of 2020 discusses professional practice and refers to training and regulation when considering tasks; it should not be read as individual certification of every bidder's competence. Our commissioning recommendation asks specifically who directs, who performs exploration, who interprets results and who signs the material you will receive. Consult the applicable professional register through the relevant official channel and retain necessary confirmation without circulating unnecessary personal information. Compare proposals by the questions answered and deliverables as well as price. Visual inspection, an exploration programme and design support have different scopes. Exclusions should be stated before commissioning. A sales presentation containing many photographs does not demonstrate sufficient experience for the particular circumstances or include subsequent reviews that were never agreed in writing for the work under consideration.
Ask how the investigation will be justified
Do not select a package merely because it advertises an impressive number of boreholes. Ask the professional how location, depth, methods and testing are defined against the project and existing information. Title H contains investigation and characterisation criteria; this article avoids converting them into a universal recipe for every parcel. Our comparison sheet requests an explanation of scope changes if conditions differ from the assumptions. Clarify equipment access, owner authorisation, existing features needing identification and how affected locations will be left after completion under the agreed assignment. These questions do not require the buyer to direct unfamiliar technical procedures. Your role is to understand what is being purchased and what could remain unanswered. If the site prevents adequate execution of the proposed programme, the responsible professional should explain alternatives and limits. Record that decision before accepting that reduced exploration is automatically equivalent to the scope originally commissioned for the property and project.
Read conclusions alongside assumptions and limitations
When the report arrives, request an explanation of the property studied, brief considered, work performed and conclusions affecting your decision. Distinguish test results, professional interpretation and recommendations for later phases. Title H organises investigation, analysis and recommendations; a buyer's reading should preserve those relationships instead of extracting one figure as a universal guarantee. Our editorial proposal uses a table of practical consequences: what changes in preliminary siting, what the designer must investigate and which budget item requires a quotation. Do not expect the report to answer questions excluded from the assignment. If a conclusion depends on a future condition, record it as a condition and ask how it should be verified. Seek clarification of unfamiliar terms before negotiating on their basis. A comprehensible document need not remove technical language; the responsible professional should explain its meaning for the particular brief and the limits on using the information supplied for other purposes.
Avoid absolute rules about small houses
MinVivienda's official answer concerning one and two storey houses under Title E describes a conditional situation: where site conditions are adequate, the specified minimum investigation is provided; if it finds conditions unsuitable for stability, the corresponding Title H geotechnical study is required. Do not turn that answer into a claim that every small house is exempt or that every parcel requires exactly the same document set. The professional and authority must review the framework applicable to the particular project and its amendments. Our purchase recommendation asks which evidence is needed to support the proposed alternative before debating a procedure. Advertising that promises easy construction does not answer questions about site conditions. Where size, system or siting changes, request a review of assumptions. This article helps formulate relevant questions while preserving the distinction between technical investigation, documents required for an application and any official decision applicable to the individual case being considered.
Test the budget against a hypothetical alternative
Suppose two parcels are being compared for a preliminary home. The first has a report addressing the current brief; the second provides a neighbour's study and an assertion that the soil is the same. The immediate task is not to copy a foundation recommendation but to ask whether that background helps and what remains to be investigated on the actual property. Title H connects analysis with the project and subsurface; our editorial comparison preserves that difference in evidence. Separate investigation costs, potential design changes and works without a defined scope. Mark an item unknown where nobody has established it. If one alternative works only by assuming the cheapest imaginable solution, its advantage still depends on missing information. A proportionate decision may be to investigate before committing, revise the brief or leave the option. You need not promise complex works or price them to recognise that uncertainty could exceed your tolerance for the purchase.
Keep the report within a sequence of decisions
Close the review with the project version, report used, clarifications received and subsequent tasks. Ask when to consult the responsible professional again: a location change, revised brief or unforeseen conditions are matters for the team rather than decisions the buyer should resolve alone. The decree adopting NSR-10 technical requirements and related documents form a framework that must be reviewed with applicable amendments. Our editorial proposal keeps a follow up record beside the budget so recommendations are not lost as the project moves from purchase into design. Identify who needs the report and which deliverables remain outstanding. If you later sell the land, explain the study's scope and date without offering it as a permanent guarantee for every possible structure. The work is useful because it reduces specific uncertainty and guides responsible decisions while leaving explicit what still needs design, evaluation or a response from the competent authority for the proposed project.
Fictional scope extract and change control
Example questions for commissioning and reading an investigation, with no actual ground results or foundation recommendations. The professional defines investigation and design for the particular site and project.
| Part of the fictional file | Scope that should be clear | Change or limitation requiring enquiry |
|---|---|---|
| Reference project | Assumption: a single-storey home in a preliminary location. Supply available loads and information without inventing them. | If a storey or construction system changes, ask the responsible professional whether the investigation remains sufficient. |
| Commissioned investigation | Description of proposed reconnaissance and exploration, with locations, deliverables and reasons for the scope. | Do not substitute a universal borehole count chosen by the buyer; ask about uninvestigated areas. |
| Recommendation received | The report should relate findings and recommendations to the project actually assessed. | Request an explanation of assumptions, restrictions and later design tasks; do not copy a solution from another parcel. |
| Fictional spatial limitation | Teaching assumption: one siting was assessed while an alternative platform lies outside that scope. | Before moving the home, enquire about extending or reviewing the investigation; do not extrapolate conclusions automatically. |
| Works and follow-up | Record who receives the report, which versions the designer uses and which observations must be reported during works. | If conditions differ from those considered, pause the affected decision and consult the competent professional. |
Sources & bibliography
Read the full document, its date, amendments and scope. The editorial review date describes this page; it does not establish an authorisation or a specific answer about your plot or financing.
- 01NSR-10 Título H: estudios geotécnicos, copia oficial IDRDwww.idrd.gov.co · Chapters H.2 and H.3: types of investigation, project information and site investigation; this article does not prescribe boreholes or foundations.
- 02COPNIA: Concepto 44 de 2020relatoria.copnia.gov.co · Institutional response on professional practice; it does not certify an individual provider's competence.
- 03MinVivienda: estudio de suelos en casas de uno y dos pisos del Título Eventanilla.minvivienda.gov.co · Official response modified 15 July 2025; the situation is conditional on minimum investigation and ground conditions, not a universal exemption.
- 04MinVivienda: Decreto 0926 de 2010minvivienda.gov.co · Official reference page for the decree establishing NSR-10 technical requirements; check amendments and rules applicable to the project.