Okeroinen 15820

Hollola · Realised detached house sale prices and the area's population profile from open data of the National Land Survey of Finland and Statistics Finland · updated 28 October 2026.

Detached house sale prices 2017–2026

Postcode area 15820 had 19 detached house sales in 2024–2026, at an average sale price of €189,895. Prices have changed by +4.5% a year on average. The figure is the total property price, plot and building together, and is not adjusted for house size. How the detached house figures are calculated (in Finnish) →

Year	Average price	Sales
2026*	181,800	5
2025	145,000	6
2024	228,625	8
2023	143,750	4
2022	134,000	6
2021	215,000	10
2020	179,455	11
2019	151,857	7
2018	117,855	9
2017	120,600	5

The average price is in euros per property and the number of sales is a count. The register has no floor area for the building, so a price per m² cannot be calculated and the figures are not standardised for house size: large and small houses share the same average. Sales of detached houses on leased plots are not property sales, so they are missing from the register entirely. Year 2026* is still in progress and will be completed later, so it is left out of the annual change.

Area profile

Population declining, middle-aged population.

Population residents	974	▼ −11.2% / 10 yrs
Mean age years	41	▼ −3 yrs vs. all of Finland
Median income €/yr, residents	29k	▲ +10% vs. all of Finland
University-educated share of residents	22%	▼ −7 pp vs. all of Finland
Employment rate of the labour force	93%	▲ +5 pp vs. all of Finland
Rental homes of households	4%	▼ −34 pp vs. all of Finland
Average home size m²	118	▲ +50% vs. all of Finland

▲/▼ compare the value with the national level (Paavo 2024): median income €26k, university-educated 29%, employment rate 88%, mean age 44 yrs, rental homes 38%, average home size 79 m².

Population trend 2010–2024

Source: Statistics Finland, Paavo (open postcode-level data). The latest statistical year is 2024: postcode-level population data is published with a delay of 1–2 years.

Other areas: Hollola

Hollola: prices for all areas and the citywide price trend →

Frequently asked about 15820

How much does a detached house cost in 15820?

In Okeroinen (Hollola), detached house properties have cost an average of €189,895 in completed sales over the last 3 years (19 sales, National Land Survey of Finland's register of property prices). The figure is the total property price and is not adjusted for house size, so large and small houses share the same average.

Are detached house prices rising or falling in 15820?

The area's average detached house price has risen by about 4.5% a year (sales-weighted trend from 2017–2025). The current year is incomplete and not included in the trend.

What kind of area is 15820 Okeroinen?

The area has 974 residents (2024), the mean age is 41 and the median income of residents is €28,881 a year. The share of university-educated residents is 22%. The population has decreased by 11% in ten years.

Sources and method

Apartment prices: Statistics Finland, prices of housing company apartments (StatFin 13mt). Updated 17 August 2026. The average price per m² is a sales-weighted average of completed sales over the last four quarters, shown only if there are at least 6 sales.
Detached house prices: National Land Survey of Finland, register of property prices (detached house properties, built plots). Updated 28 October 2026. The average price is a sales-weighted average of completed sales over the last 3 years, shown only if there are at least 8 sales. The figure is the total property price: the register has no floor area for the building, so no price per m² is calculated.
Population, income and education: Statistics Finland, Paavo: open data by postcode area (12f7). Statistical year 2024.
Limitations: the figures are area averages. They do not tell you the value of an individual apartment and are not investment advice. In areas with few sales a single sale moves the average.