Case · Test analysis before launch (anonymised)

Two houses, almost the same price — why they're not the same purchase

Two real properties from a test analysis we did before launching BoligCheck, same town, same budget, only 8-9% apart in price. Addresses and identifiable details have been removed — but the numbers and findings are genuine. Not a paid client report.

Same budget, two completely different products

Property A is a newly built terraced house from 2021, 100 m², on the edge of the town centre. Property B is a fully renovated townhouse from 1880, 80 m², right in the centre. The price difference was only around 8-9% — but that's essentially the only thing the two properties had in common.

Test analysis before launchThe numbers and findings here come from a test analysis we did before launch — two real properties for sale, analysed with our own method. Not a paid client report.
ParameterProperty A (new build)Property B (historic, renovated)
Price per m² (calculated)Lower — under 35,000 kr/m²36-39% higher than Property A
Condition report / electrical reportStill missing at the time of listingFully available: 2× RED (minor, cheap to fix), the rest GREY/YELLOW
Energy labelTop rating — but see the heating-cost section belowGood, but a lower rating than A
Price vs. public valuationValuation higher than the price (~5-6%)Valuation lower than the price (~27%)
Special conditionConfirmed soil contamination (knowledge level 2) on the plot itselfRegistered as heritage-protected — limits future changes to the facade

Finding 1: the energy label's number applied to the whole block, not the home

Property A's energy label had been prepared for the whole building block it was part of — several homes together. The heating cost stated on the front page therefore covered all the units combined, not the individual home. The sales particulars mentioned this in small print, but without recalculating the real share — we did that in the analysis, and the real cost for this specific home was markedly lower than the figure that was highlighted.

Why it mattersAn attractive number on the front page of an energy label isn't automatically "your" number if the home is part of a larger building. Always check whether the energy label was issued for the individual home or for a whole block/building.

Finding 2: missing reports isn't the same as no risk

Property A was listed before the condition report and electrical installation report were ready — entirely legal, as long as they're available before the purchase agreement is signed. But it means that at the time of the decision, you're effectively bidding without knowing the technical condition. Property B, conversely, had a complete set of documents ready — the buyer knew exactly what they were bidding on.

Finding 3: the same "base data", opposite conclusions on price

The public valuation pointed in opposite directions for the two properties: for Property A the valuation was above the price (a rare and, on the face of it, positive signal), for Property B it was markedly below the price. Neither is a definitive answer on its own — the valuation is often provisional under the ongoing property-tax reform — but both are relevant questions to raise before you bid.

Finding 4: heritage-protected status — a hidden constraint, not a fault

Property B was registered as a heritage-protected building. That's not a fault or a warning in itself — but it typically means that changes to the facade, windows and roof must be approved by the municipality, even where an ordinary homeowner would normally just go ahead. The seller had themselves mentioned that the facade's render wasn't in the best condition — a future cost that's now subject to an approval process the buyer should know about in advance.

What does it mean for you as a buyer?

Neither property was a "bad buy" — but they represent two completely different risk profiles for the same budget: known condition at a price premium, or unknown condition at a lower price per square metre. That's exactly the kind of choice a BoligCheck is designed to make clear before you bid — not after.

Should we run the same numbers on your property?

A BoligCheck reviews the documents, the energy label and the price against the public valuation — and tells you what type of risk you're actually facing. In English, Ukrainian, Arabic or Danish.

Order a BoligCheck — 299 kr
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Also read: How to read the condition report · The electrical installation report translated · Ejerudgift — what the listing doesn't tell you