Helsinki · 41,000+ apartments analysed

Property Market Data and Analysis.

Browse realised transaction prices and find undervalued apartments across Helsinki — powered by machine learning.

Top Property Markets

Most active postcodes in the last quarter.

Source: Statistics Finland · loading… · latest published

Browse by neighbourhood

Undervalued apartments and realised sales by Helsinki postcode.

Central
Töölö & west
Sörnäinen & Kallio
North & east
See all Helsinki postcodes in Finder →

What You Can Do

Two powerful tools to understand the Finnish property market.

Find Undervalued Properties

Discover properties priced below their predicted market value using our targeted machine learning model.

Explore deals →

Browse Market Transactions

Search real, recorded home sales in your area with detailed price, size, and location data.

View transactions →

How It Works

1

Enter Details

Input a postcode, property size, rooms, and features.

2

Get AI Analysis

Our ML model analyses market data for price estimates.

3

Make Decisions

Use data-driven insights to find deals and trends.

Methodology

What the model
looks at.

Every prediction is a gradient-boosted regression over 24 features, learned from a rolling 365-day window of Helsinki listings. Size and location dominate, as you'd expect — but pipe renovations, land ownership and the housing-company fee structure move prices more than most buyers realise.

24
features
17%
realised-sale MAPE
23,267
training rows
Category Share
Size floor area + room count
30.9%
Location postcode median €/m²
12.6%
Condition parsed condition label
7.6%
Pipe renovation stage + year + signals
7.0% ~
Building age year built
6.0% ~
Maintenance fees service charge + capital fee
5.5% ~
Floor level + total floors
4.5% ~
Land ownership own vs. leased plot
4.0% ~
Amenities elevator, sauna, balcony
3.5% ~
Exact: top three. ~ grouped from the latest feature-importance report.