17.3% below the model's estimate

Oksasenkatu 3 a

00100 · Helsinki keskusta - Etu-Töölö · Helsinki

Asking price
€498,000
€6,036/m²
Model estimate
€602,434
€540,264–€678,930
Size
82.5 m²
3 rooms
Year
1924
Floor 4/6
Monthly fee
€462/mo
total housing co-op fee · 28 Sep 2026
Gross yield
3.9%
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 00100.

Asking 17.3% below the estimate
Asking price
€498,000
€6,036/m²
Model estimate
€602,434
€7,302/m²
Gap to the model's estimate
−€104,434
asking price minus estimate

Asking price and the model's estimate

€540,264model's 80% range€678,930

The model expects 80% of flats like this to ask €540,264 to €678,930. The asking price is below that range, so it is low even after allowing for the model's error. The estimate is an asking price, not a sale price: realised sales in 00100 closed on average 6.4% below the asking price (53 sales to the end of 2025).

The median asking price of listings for sale in 00100 is €8,017/m²; this flat asks €6,036/m².

Recent quarterly €/m² trend · 00100

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

Market context

How this listing compares with realised sales in 00100 Helsinki keskusta - Etu-Töölö (to the end of 2025) and with other listings for sale.

Days on market
44 days
Counted from when we first observed the listing, capped at our tracking window. Median for 00100: 58 days (n=67).
Sale price vs. asking in this postcode
−6.4%
Mean of 53 realised sales in 00100 to the end of 2025, the same figure the sales archive shows. At the same gap this listing would sell for about €465,966.

Comparable realised sales · 00100

8 newest sales between 58 and 115 m²
Sold by Size Asked Sold price €/m² vs ask
2025Q4 69.5 m² €572,000 €522,500 €7,518/m² −8.7%
2025Q4 68.5 m² €529,000 €475,000 €6,934/m² −10.2%
2025Q4 62 m² €512,000 €445,000 €7,177/m² −13.1%
2025Q4 72 m² €498,000 €462,000 €6,417/m² −7.2%
2025Q4 70.5 m² €498,000 €473,000 €6,709/m² −5.0%
2025Q4 72.7 m² €429,000 €400,000 €5,502/m² −6.8%
2025Q4 79 m² €598,000 €565,500 €7,158/m² −5.4%
2025Q4 85.5 m² €620,000 €580,000 €6,784/m² −6.5%

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
€602,434
€7,302/m²
Postcode reference
Median asking price in 00100 Helsinki keskusta - Etu-Töölö: €8,017/m² · this unit asks €6,036/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
82.5 m² · 3 rooms
44.0%
Location
00100 Helsinki keskusta - Etu-Töölö
29.9%
Amenities
Elevator: Yes · Sauna: No · Balcony: No
7.8%
Condition
Satisfactory
6.2%
Pipe renovation
Completed 2010
4.6%
Land
Own plot
2.6%
Fees
€462/mo
1.9%
Year built
1924
1.7%
Floor
4 / 6
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.

Pipe renovation completed 2010

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
4 / 6
Condition
Satisfactory
Energy class
—
Balcony
No
Sauna
No

Building

Year built
1924
Total floors
6
Elevator
Yes

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.

Cash at signing€
Selling price €498,000
Transfer tax (1.5%) €7,470
Admin / drafting fee (est.) €380
Cash needed €505,850
Monthly running costs€/mo
Total housing-company fee €462
Implied annual €5,544
Likely sale price. In 00100, sales closed on average 6.4% below the asking price (53 sales to the end of 2025). At the same gap this listing would sell for about €465,966 (cash including transfer tax and fees: €473,335).
Estimated monthly rent
€1,627
€1,274–€2,121 · vuokra-arvio.fi
Gross yield
3.9%
estimated rent ÷ asking
Implied annual rent
€19,524
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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