A condominium sold in the same building may appear to be the clearest possible benchmark for another apartment. It shares an address, a location and, often, a broadly similar format. But a sale next door is not automatically the most relevant comparable transaction for an owner, buyer, valuer or investor.
The issue is market definition: the process of deciding which properties genuinely compete for the same pool of buyers. A recent examination of condo appraisal practice by HousingWire highlights the gap between simply having property data and using it to form actionable market intelligence.
Similar address, different market position
Two apartments in one development can occupy different positions in the market. Their appeal may vary because of layout, condition, floor level, outlook, parking, outdoor space or the timing and terms of a transaction. A recorded sale price captures an outcome, but it does not by itself explain which features influenced that outcome or whether another unit would attract the same buyers.
This distinction matters in Latvia's apartment market, where building-level comparisons can be tempting in developments with limited public transaction evidence. A single nearby sale may be a useful data point, but it should be considered alongside the property’s specific characteristics and the broader group of homes competing for demand.
For sellers, the practical lesson is to avoid treating the latest sale in a stairwell or neighbouring building as a definitive asking-price signal. Buyers should also be cautious about assuming that a nearby transaction proves value for a particular unit. The better question is whether the two homes are substitutes from the perspective of an informed buyer.
Comparable sales remain central to property analysis. Their value, however, depends less on how close they are on a map than on whether they belong to the same relevant market. Defining that market first can turn a list of transactions into a more disciplined basis for pricing discussions and valuation decisions.