Marked increase in sales and prices of detached homes in Q1 The biggest market price increase was seen in municipalities with 20,000 to 59,999 residents. Nearly 18 percent more old detached houses were sold during the first quarter than the same time last year. Image: Mostphotos The prices of old, single-family detached homes grew by 7.6 percent year-on-year in Finland during the first quarter of this year, according to Statistics Finland. Sales volumes of these types of houses during January-March also increased by 2.7 percent compared to the previous quarter. Nearly 18 percent more old detached houses were sold during the first quarter than the same time last year, with as many as 45 percent more home sales in greater Helsinki and just over 16 percent more across the rest of the country.