−4.7% under predicted ● Online

Pietarinkatu 15 A

00140 · Helsinki

Selling price
€199,000
€8,292/m²
Predicted
€208,893
€8,704/m²
Size
24 m²
1 room
Year
1937
Floor 6/6
Monthly fee
€251/mo
total housing co-op fee
Gross yield
4.1%
rent ÷ asking

Price comparison

How this unit prices vs. the model and the surrounding 00140 market.

Asking is 4.7% below predicted
Asking price
€199,000
€8,292/m²
Predicted price
€208,893
€8,704/m²
Implied savings
−€9,893
vs. model estimate

Where this listing sits in the market

00140 · asking vs. predicted €/m²
Asking €8,292/m²
Predicted €8,704/m²
€5,330/m² €8,200/m² (postcode median) €11,890/m²

Recent quarterly €/m² trend · 00140

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Postcode median €/m² This listing's asking €/m²

Market context

How this listing compares to recent activity in 00140 — actual sold prices, typical seller flexibility, and how long listings sit before they close.

Days on market
33 days
Median for 00140: 166 days (n=91). Fresh — seller likely firmer.
Typical negotiation in this postcode
-5.6%
Average sold-vs-asking gap across 27 matched sales in 00140. Implied close on this listing: €187,795.

Price changes during this listing

2026-04-23 €210,000 €199,000 -5.2% (-11,000 €)

Comparable realised sales · 00140

6 matched within ±30% size
Sold Size Asked Sold price €/m² vs ask
2025-12-17 27 m² €198,000 €194,400 €7,200 -1.8%
2025-12-17 26 m² €254,000 €225,000 €8,654 -11.4%
2025-10-18 25 m² €237,000 €230,000 €9,200 -3.0%
2025-09-20 27 m² €240,000 €219,000 €8,111 -8.8%
2025-06-25 29.5 m² €295,000 €280,000 €9,492 -5.1%
2025-05-16 24 m² €190,000 €175,000 €7,292 -7.9%

Matched against ARA realised-sale records within the same postcode and ±30% of this unit's size, sorted by sale date.

What the model considered

24 features · gradient-boosted regression

Predictions come from a non-linear XGBoost ensemble trained on a rolling 365-day window of Helsinki listings — not a postcode median with per-feature adjustments. Below are the values the model received for this unit, with each feature group's typical training-set importance.

Predicted
€208,893
€8,704/m²
Postcode reference
Median in 00140: €8,200/m² · this unit asks €8,292/m²
Postcode median is one of 24 inputs (~12% of model importance) — not a baseline that adjustments are layered on.
Floor area
24.0 m²
Very high
Room count
1 room
Very high
Postcode
00140 (median €8,200/m²)
High
Condition
Good
High
Year built
1937
High
Pipe renovation
Completed 1989
High
Maintenance fee
€251/mo
High
Floor in building
6 / 6
High
Land ownership
Own plot
Moderate
Elevator
Yes
Moderate
Sauna
No
Moderate
Balcony
No
Moderate

Importance is the typical share of model gain attributed to each feature group across the training set. The actual contribution to this specific prediction would require running SHAP on the live model.

Pipe renovation

Linjasaneeraus is the largest building-system replacement a Helsinki housing company performs — typical cost €25–55k per unit and often shifts the asking price.

Pipe renovation completed 1989

No imminent assessment expected; the cost is already absorbed into the asking price.

Building & title

Quick reference for things that move the price beyond size and location.

Apartment

Floor
6 / 6
Condition
Good
Energy class
Balcony
No
Sauna
No

Building

Year built
1937
Total floors
6
Elevator
Yes

Title

Land
Own plot
Pre-emption
No clause

Deal economics

What you actually pay, what a realistic close looks like, and what a buyer can expect to earn from rent.

Selling price
€207,161
myyntihinta — paid to seller
+
Debt share
€2,839
lainaosuus — co-op loan
=
Debt-free price
€210,000
velaton hinta — true total cost
Cash at signing · assume the loan
Selling price €207,161
Transfer tax (1.5%) · on debt-free €3,150
Admin / drafting fee (est.) €380
Cash needed €210,691

You take over the housing company's loan share and service it via the monthly capital fee (rahoitusvastike).

Cash at signing · pay off the loan
Debt-free price €210,000
Transfer tax (1.5%) €3,150
Admin / drafting fee (est.) €380
Cash needed €213,530

You pay the loan share upfront — the monthly capital fee disappears, only the maintenance fee remains.

Realistic close estimate. Sales in 00140 settle 5.6% off ask on average (27 matched sales). At that rate, this listing closes near €187,795 (cash incl. tax + admin: €190,992).
Gross yield
4.1%
rent ÷ asking
Implied annual rent
€8,099
back-computed from yield
Implied monthly rent
€675
annual ÷ 12

Mortgage estimate

Quick estimate of monthly principal + interest. Move the sliders for your situation.

20% · €
4.0%
25 years
Loan amount
debt-free price minus down payment
Monthly principal + interest
plus housing-company fee €— all-in
Total interest paid
over the full term

Illustrative only. Real offers depend on your credit, ECB / Euribor at draw-down, and the bank's margin.

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