Method
How we estimate
An estimate is a range, not a contractor quote. Here is everything it is made of.
1. Quantities from the model
Every design has a 3D model. From it we take the external wall area net of windows and doors, partition area, roof area along the slope, window area, room areas and perimeters. That is why two houses of the same floor area can cost differently: longer walls, bigger windows and a more complex roof show up in the estimate.
2. Assembly recipes
Every assembly (for example “AAC 300 + mineral wool 150 + render”) has a unit price: materials and labour separately, from minimum to maximum. When you change the wall in the calculator, only the recipe changes, and the quantities stay.
For now the estimate counts materials only. Labour rates are in the price database but left out of the totals until they are checked against contractor quotes.
3. Finishes by class
Floor, wall and ceiling finishes are priced by room area and the chosen class. External wall, partition and ceiling recipes carry no interior finish: it belongs to the finishes stage. Wet rooms get waterproofing and tiles on top; a sauna gets timber lining on walls and ceilings and benches instead of a finish class.
- Economy: €21 – €43 per m²
- Standard: €32 – €66 per m²
- Premium: €52 – €109 per m²
4. Delivery, range and contingency
We add 4–7% for delivery of materials and offcut disposal.
Every line has a low and a high price, but no project gets every line at its cheapest or at its dearest. So the total is not the sum of the minimums and the maximums: the midpoints add up and the deviations combine as partly related (one supplier and one crew move many prices the same way, not all of them). The range is what the market can realistically quote.
The 10% contingency is shown next to the total, not inside it, so the total compares with a builder’s quote.
Not included
- construction labour;
- plot, soil investigation, topographic survey;
- design, reviews, building board fees;
- connections to power, water and sewer;
- landscaping, fence, driveway;
- furniture, kitchen, appliances.
Price date and sources
Prices include 21% VAT, Latvia, as of 2026-09. Material prices come from builders’ merchants and manufacturers. The price database is updated every quarter.
The price database is currently in demo mode: wall assembly prices are based on a September 2026 study; the rest is still being checked against supplier and contractor quotes.