When I would leave a villa out before modelling the return

A villa can be attractive enough to fill an investment spreadsheet before anyone has examined the premise behind the revenue. The asking price is clear. The location appears desirable. An operator offers to handle guests. The brochure includes an annual income estimate. Then the buyer asks an apparently inconvenient question: what establishes that this particular property can be used in the way the rental forecast assumes?

If that question is still materially unanswered, the yield comparison should stop there. Not because the seller must be wrong, or because every property with incomplete public documentation is defective. The reason is simple: the proposed income depends on an underlying condition that has not yet been substantiated. A precise return calculation cannot replace that condition.

An investment case has a premise before it has a percentage

Consider a deliberately hypothetical Bali offer involving an interest in a villa priced at USD 280,000. The marketing model suggests annual gross rental receipts of USD 48,000 from short guest stays. It budgets USD 22,000 in preliminary expenses, leaving USD 26,000 before other costs that may not have been included. These figures are examples, not a prediction, a verified property budget or evidence of any typical market return.

The arithmetic could be carried further. A buyer might compare optimistic and pessimistic occupancy, vary the room rate or add a reserve for equipment replacement. None of those refinements settles the more fundamental question if the documents supporting the intended short-stay operation have not been supplied or reviewed. The model continues to produce numbers even when the real-world activity behind them remains unconfirmed.

Suppose a salesperson says that neighbouring properties take short-term guests, therefore this one will be able to do the same. That assertion is a reason to investigate the specific legal and operating position. It is not proof that a particular buyer, under the proposed arrangement, has the required rights or permissions. The relevant documents and their interpretation must concern this property and the way the buyer expects to use it.

This is different from uncertain occupancy. A range of occupancy assumptions can describe possible trading outcomes for a permitted operation. Whether the proposed activity is available to the buyer at all is an earlier gate. If the intended activity cannot be supported, changing the occupancy figure from 70% to 50% does not repair the financial comparison. The underlying product may need to be redefined.

Missing information and adverse information are not the same

Property advertisements rarely contain every document that an independent adviser needs to review. That does not make every incomplete listing suspicious. The seller may have the document but not have provided it yet. A package might need to be assembled from several sources. A conflict between records may require clarification by the appropriate authority or professional.

I find it helpful to distinguish three situations. In the first, the required evidence has been supplied and can be assessed for this property. In the second, the information is promised but still outstanding. In the third, the documents reveal an unresolved inconsistency material to the proposed use. Those situations should not receive the same label. The first allows informed scrutiny. The second may justify waiting. The third calls for an explanation and perhaps a change in the proposed transaction.

Public maps help frame the question, but their limits should be respected. Indonesia's Ministry of Agrarian Affairs and Spatial Planning/National Land Agency, ATR/BPN, explains in its BHUMI guidance that public geospatial information may be incomplete, inaccurate or out of date. Information needed for official reliance must be obtained through the appropriate public information processes. A favourable-looking map therefore cannot by itself certify the rights or authorisations associated with a villa investment.

Nor is this article an attempt to provide a one-sentence rule covering Indonesian land law, construction permissions and accommodation activity. Those are distinct questions, and the applicable answer depends on the real documents, parties and proposed structure. A qualified independent Indonesian professional should assess the material legal conditions in the transaction. The marketing forecast is not a substitute for that assessment.

The buyer's purpose determines whether the gap is fatal

Imagine two buyers considering the same property. One intends to live in the villa and treats occasional rental income as a possible extra. Another would not buy unless the proposed short-stay business were viable and properly supported. An unresolved question about that business has a different significance for each person. It might remove an optional feature from the first buyer's plan and the central reason for the second buyer's purchase.

For the second, my screening rule would be simple: the property should not be ranked against others on predicted short-stay yield until there is sufficient evidence, reviewed in the appropriate way, that the proposed operation is available within the buyer's intended legal and commercial arrangements. This is a decision rule for an investment analysis, not a public accusation that a particular villa lacks permission.

Inventing a probability of approval would add precision without evidence. A model that assigns a 90% chance to a missing legal conclusion without a proper basis looks sophisticated while remaining arbitrary. It would be more informative to say that the question is open, describe why the answer matters and identify the evidence that would allow the buyer to proceed.

The temptation to skip that stage can be strongest when the seller imposes a deadline. Perhaps a reservation deposit is requested, a promotional price is ending or another buyer is said to be interested. Commercial pressure does not create the required documents. Whether a buyer can recover money or withdraw later depends on the agreement they sign. No responsible universal assurance can make an early commitment safe in every case.

Returning to the property should be possible

A threshold does not have to become a permanent verdict. The missing evidence may arrive. An independent review may establish that the proposed use is supported, subject to conditions the buyer can accept. In that case, the villa can re-enter the comparison, and its rental assumptions can be assessed with appropriate caution.

There may be a different outcome: the property is suitable for the owner's personal use or a different letting model but not for the specific business presented. That calls for a new decision and a new financial model. It does not justify leaving the original revenue forecast in place while quietly changing the intended activity.

If the required evidence cannot be obtained or a material conflict remains unresolved, excluding the villa from the investment shortlist is the cleaner decision. That judgement says something about the buyer's decision threshold and the information available, not about the seller's character. A buyer may miss a potentially attractive opportunity, but continuing with a return calculation built on an unestablished premise would not make the opportunity more knowable.

Some uncertainties properly belong in a financial model: booking rates, periods without guests, maintenance increases, replacement costs and an eventual resale price. A fundamental unresolved condition for using the property is not simply another number to move up or down. It is a reason to ask whether the model describes an activity the buyer can carry out at all.

I would prefer an investment analysis that clearly says “not ready to compare” to one that ranks every beautiful villa by the precision of an unsupported percentage. Once the property rights, intended use and contractual position are sufficiently established, the income question becomes meaningful. Until then, the most valuable calculation may be the one we decide not to perform.

Sources

• Indonesia's Ministry of Agrarian Affairs and Spatial Planning/National Land Agency (ATR/BPN), BHUMI help page “Landing”: limitations of publicly displayed geospatial information and the procedure for obtaining information for official use; accessed 15 October 2026.
• ATR/BPN, JDIH official legal information portal: repository of land-related regulations for review by qualified professionals; accessed 15 October 2026. Neither source independently establishes the legal position of a specific villa.