How much does an apartment in ul. Mickiewicza 89 cost?

The cheapest unit in the asking-price register costs 575 000 zł, and the median price is 10 159 zł/m². These are the developer asking prices, not transaction prices.

How many apartments are still for sale in ul. Mickiewicza 89?

Of 1 priced units, 1 are not marked as sold in the register. Developers update the status with a delay, so treat this as indicative.

Who is the developer behind ul. Mickiewicza 89?

The development is run by Erte Invest Robert Trześniewski. Data comes from the developer asking-price register.

Are prices here higher than nearby?

The median here is 10 159 zł/m², against 10 071 zł/m² across 20 developments within 1,5 km.

Primary market - developer investment

ul. Mickiewicza 89

ul. Mickiewicza, Kobyłka, woj. mazowieckie

ul. Mickiewicza 89 is a development by Erte Invest Robert Trześniewski in Kobyłka. Prices start at 575 000 zł, with a median of 10 159 zł/m². Difference against 20 nearby developments within 1,5 km: +0,9%.

575 000 zł

price from

10 159

median zł/m²

56,6 m²

floor area

units for sale

With a mortgage (20% down): instalment from ~2936 zł/mo. An estimate, not a credit offer.

Development plot · 2725 m² total (ULDK cadastre)

Price movement

In the last 90 days the developer raised the price of 1 unit(avg +0,9%)

We have tracked this investment since 07.2026.

Units in this investment

1 residential units with a listed price

1 · 56,6 m²
575 000 zł10 159 zł/m²

No.	Area	Rooms	Floor	Price	zł/m²	Reservation
1	56,6 m²	—	—	575 000 zł	10 159

Developer - registry facts

Erte Invest Robert Trześniewski

Registered: 2017
Phone: +48 515 793 226
Developer website: erteinvest.pl

Investment information prospectus ↗

Mortgage

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Down payment from 0 zł

Nearby developments

20 developments within 1,5 km, median 10 071 zł/m². This investment: +0,9% vs neighbours.

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Other developments by Erte Invest Robert Trześniewski

ul. Mickiewicza 85, Kobyłka9411 zł/m² ul. Mickiewicza 93, Kobyłka10 066 zł/m² ul. Mickiewicza 95, Kobyłka9182 zł/m² ul. Mickiewicza 81, Kobyłka10 227 zł/m² ul. Mickiewicza 91, Kobyłka9973 zł/m² ul. Mickiewicza 83, Kobyłka9761 zł/m²

Frequently asked questions

How much does an apartment in ul. Mickiewicza 89 cost?: The cheapest unit in the asking-price register costs 575 000 zł, and the median price is 10 159 zł/m². These are the developer asking prices, not transaction prices.
How many apartments are still for sale in ul. Mickiewicza 89?: Of 1 priced units, 1 are not marked as sold in the register. Developers update the status with a delay, so treat this as indicative.
Who is the developer behind ul. Mickiewicza 89?: The development is run by Erte Invest Robert Trześniewski. Data comes from the developer asking-price register.
Are prices here higher than nearby?: The median here is 10 159 zł/m², against 10 071 zł/m² across 20 developments within 1,5 km.

Eyeing a specific apartment? Paste the listing link - we will compare its price against this investment, its neighbours and notarial-deed transactions.

Check a listing

Data comes from the developer asking-price registry (dane.gov.pl, housing price transparency act) and official registries (KRS, MF). Asking prices - not transaction prices. History covers the period since Mieszk.pl started tracking this investment. This is not investment or real-estate advice.