6.1% below the model's estimate

Korppaantie 4 A

00300 · Pikku Huopalahti · Helsinki

Asking price
€139,000
€4,633/m²
Model estimate
€148,076
€4,936/m²
Size
30 m²
1 room
Year
1964
Floor 1/2
Monthly fee
€405/mo
€195 maintenance + €210 capital · 28 Sep 2026
Gross yield
6.2%
vuokra-arvio · rent ÷ asking

Data updated 28 Sep 2026.

Price comparison

How the asking price compares with the price model's estimate and the price level of 00300.

Asking 6.1% below the estimate
Asking price
€139,000
€4,633/m²
Model estimate
€148,076
€4,936/m²
Gap to the model's estimate
−€9,076
asking price minus estimate

Asking price and the model's estimate

The model's average error on new listings is ±10.5%. This listing's gap to the estimate is smaller than that, so it is ordinary model error. The estimate is an asking price, not a sale price: realised sales in 00300 closed on average 0.6% below the asking price (6 sales to the end of 2025).

The median asking price of listings for sale in 00300 is €4,350/m²; this flat asks €4,633/m².

Recent quarterly €/m² trend · 00300

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

Market context

How this listing compares with realised sales in 00300 Pikku Huopalahti (to the end of 2025) and with other listings for sale.

Days on market
91 days
Counted from when we first observed the listing, capped at our tracking window. Median for 00300: 111 days (n=23).
Sale price vs. asking in this postcode
−0.6%
Mean of 6 realised sales in 00300 to the end of 2025, the same figure the sales archive shows. At the same gap this listing would sell for about €138,139.

Comparable realised sales · 00300

4 newest sales between 21 and 42 m²
Sold by Size Asked Sold price €/m² vs ask
2025Q4 24 m² €155,000 €150,000 €6,250/m² −3.2%
2025Q4 27 m² €168,000 €162,000 €6,000/m² −3.6%
2025Q3 31.5 m² €175,000 €217,288 €6,898/m² +24.2%
2025Q3 42 m² €235,000 €222,500 €5,298/m² −5.3%

What the model considered

27 inputs · XGBoost · v2.5

The estimate comes from a tree model trained on the asking prices of Helsinki listings. It is not a postcode average plus adjustments; the model uses all inputs together. Below are the values the model received for this flat, and each input group's weight in the model.

Model estimate
€148,076
€4,936/m²
Postcode reference
Median asking price in 00300 Pikku Huopalahti: €4,350/m² · this unit asks €4,633/m²
The median asking price of the listings still online in this postcode, after each postcode’s outliers are trimmed back to its interquartile fence. It is a reference, not a model input: the model reads its own training encoding of the postcode, which is clamped and can differ.
Input group
This flat
Weight in the model
Size
30 m² · 1 room
44.0%
Location
00300 Pikku Huopalahti
29.9%
Amenities
Elevator: No · Sauna: No · Balcony: No
7.8%
Condition
Satisfactory
6.2%
Pipe renovation
Not reported
4.6%
Land
Own plot
2.6%
Fees
€405/mo
1.9%
Year built
1964
1.7%
Floor
1 / 2
1.3%

Weight is the input group's share of the model's gain in training. It shows what the model generally relies on, not how much each value moved this flat's estimate.

Pipe renovation

A pipe renovation (linjasaneeraus) is the largest building-systems project a housing company undertakes, and its status often shows in the asking price.

No pipe renovation reported

The listing doesn't mention a recent or planned renovation. Check the housing-company report (isännöitsijäntodistus) for confirmation.

Building & title

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

Apartment

Floor
1 / 2
Condition
Satisfactory
Energy class
—
Balcony
No
Sauna
No

Building

Year built
1964
Total floors
2
Elevator
No

Title

Land
Own 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.

Selling price
€105,030
myyntihinta — paid to seller
+
Debt share
€33,970
lainaosuus — co-op loan
=
Debt-free price
€139,000
velaton hinta — true total cost
Cash at signing · assume the loan€
Selling price €105,030
Transfer tax (1.5%) · on debt-free €2,085
Admin / drafting fee (est.) €380
Cash needed €107,495

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 €139,000
Transfer tax (1.5%) €2,085
Admin / drafting fee (est.) €380
Cash needed €141,465

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

Likely sale price. In 00300, sales closed on average 0.6% below the asking price (6 sales to the end of 2025). At the same gap this listing would sell for about €138,139 (cash including transfer tax and fees: €140,591).
Estimated monthly rent
€716
€650–€847 · vuokra-arvio.fi
Gross yield
6.2%
estimated rent ÷ asking
Implied annual rent
€8,592
estimate × 12
Refine the rent estimate on vuokra-arvio.fi → Property-specific rent model, accounts for furnishing, amenities, and floor.

Mortgage estimate

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

20 % · —
—
25 years
Loan amount
—
debt-free price minus down payment
Monthly principal + interest
—
— a month with the housing-company fee
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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