−34.3% under predicted ● Offline

Niemenmäenkuja 1

00350 · NiemenmäkiNiemenmäenkuja 1 · Helsinki

Selling price
€728,000
€2,978/m²
Predicted
€1,107,743
€4,531/m²
Size
244.5 m²
6 rooms
Year
1962
Floor 1/2
Monthly fee
€1,191/mo
total housing co-op fee
Gross yield
rent ÷ asking

Price comparison

How this unit prices vs. the model and the surrounding 00350 market.

Asking is 34.3% below predicted
Asking price
€728,000
€2,978/m²
Predicted price
€1,107,743
€4,531/m²
Implied savings
−€379,743
vs. model estimate

Where this listing sits in the market

00350 · asking vs. predicted €/m²
Asking €2,978/m²
Predicted €4,531/m²
€3,325/m² €5,115/m² (postcode median) €7,417/m²

Recent quarterly €/m² trend · 00350

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

Market context

How this listing compares to recent activity in 00350 NiemenmäkiNiemenmäenkuja 1 — actual sold prices, typical seller flexibility, and how long listings sit before they close.

Days on market
318 days
Median for 00350: 166 days (n=222). Stale — seller likely more flexible.
Typical negotiation in this postcode
-6.1%
Average sold-vs-asking gap across 39 matched sales in 00350. Implied close on this listing: €683,717.

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
€1,107,743
€4,531/m²
Postcode reference
Median in 00350 NiemenmäkiNiemenmäenkuja 1: €5,115/m² · this unit asks €2,978/m²
Postcode median is one of 24 inputs (~12% of model importance) — not a baseline that adjustments are layered on.
Floor area
244.5 m²
Very high
Room count
6 rooms
Very high
Postcode
00350 · NiemenmäkiNiemenmäenkuja 1 (median €5,115/m²)
High
Condition
Good
High
Year built
1962
High
Pipe renovation
Completed 2009
High
Maintenance fee
€1,191/mo
High
Floor in building
1 / 2
High
Land ownership
Leased plot
Moderate
Elevator
No
Moderate
Sauna
Yes
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 2009

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
1 / 2
Condition
Good
Energy class
C
Balcony
No
Sauna
Yes

Building

Year built
1962
Total floors
2
Elevator
No

Title

Land
Leased plot
Pre-emption
Not reported

Deal economics

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

Cash at signing
Selling price €728,000
Transfer tax (1.5%) €10,920
Admin / drafting fee (est.) €380
Cash needed €739,300
Monthly running costs€/mo
Total housing-company fee €1,191
Implied annual €14,296
Realistic close estimate. Sales in 00350 settle 6.1% off ask on average (39 matched sales). At that rate, this listing closes near €683,717 (cash incl. tax + admin: €694,353).
Gross yield
rent ÷ asking
Implied annual rent
back-computed from yield
Implied monthly rent
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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