Land in Konstancin-Jeziorna
Municipality in piaseczyński county, mazowieckie voivodeship.
This local-data view is translated for navigation and data interpretation. Polish administrative names remain official.
No price meeting the comparison criteria.
Data coverage and ranking eligibility
How prices are calculatedKonstancin-Jeziorna is a urban-rural municipality in piaseczyński county, mazowieckie voivodeship.
Recorded RCN transactions in this municipality show an agricultural-land median of 306 PLN/m², with agricultural median: 90 deeds. Data date: 2026-09-04T10:45:00+02:00. These are transaction prices, not listing prices or a valuation of a specific parcel.
Transaction-price indicators
Too few transactions to report a municipality price.
View the available observations (3)
Median of this small sample: 1 389 PLN/m². Period: 2025-09-04–2026-09-04. This describes only these transactions and does not establish a municipality-wide price.
Undeveloped land — local median
Insufficient local data (3 qualifying transactions · latest 2026-03-16)Agricultural land — median
306 PLN/m²90 qualifying transactions · latest 2026-06How to read the price and data coverage
The median is the middle transaction price for undeveloped land sold over the last 12 months. We include full-property sales on the open market and exclude roads, shares and packages without a price allocated to the plot. An exact ranking position requires at least 30 deeds, at least 80% coverage, a relative 95% confidence-interval width of at most 50%, and no quality flags. From 10 deeds we show a comparison band; 1–9 deeds give an informational price only. Missing prices are not estimated. Agricultural land has a separate median. Check planning documents for the permitted use of a specific plot. 2026-09-04T10:45:00+02:00.
Other local data availability
🗺️ Municipal general plan and new development rules
The Urban Register is temporarily unavailable. This is not treated as evidence that no plan exists.
Gmina Konstancin-Jeziorna w liczbach
Population over time
Annual population, GUS Local Data Bank.
Annual data and download
| Year | Residents |
|---|---|
| 2010 | 24 839 |
| 2011 | 24 820 |
| 2012 | 24 895 |
| 2013 | 24 805 |
| 2014 | 24 788 |
| 2015 | 24 763 |
| 2016 | 24 773 |
| 2017 | 24 776 |
| 2018 | 24 721 |
| 2019 | 24 726 |
| 2020 | 25 294 |
| 2021 | 25 165 |
| 2022 | 25 151 |
| 2023 | 25 088 |
| 2024 | 25 012 |
| 2025 | 24 865 |
Source: GUS BDL, variable 72305. Census revisions and boundary changes may affect comparisons.
Local context — Konstancin-Jeziorna
Konstancin-Jeziorna had 24 865 residents in 2025 (GUS BDL). Compared with 2015, the recorded population increased by 102 (0.4%). The area calculated from PRG boundaries is approximately 77.9 km², giving about 319 residents per km².
Population comparisons may include census revisions and administrative boundary changes.
Recent anonymised transactions
Scroll the table horizontally to view every column.
| Month | Type | Area | PLN/m² |
|---|---|---|---|
| 2026-06 | rolno-budowlana | 1 968 m² | 132 |
| 2026-06 | rolno-budowlana | 37 212 m² | 494 |
| 2026-06 | rolna | 677 m² | 100 |
| 2026-05 | rolna | 1 343 m² | 588 |
| 2026-05 | rolno-budowlana | 1 500 m² | 1 180 |
| 2026-05 | rolna | 1 598 m² | 272 |
| 2026-05 | rolna | 642 m² | 296 |
| 2026-05 | rolno-budowlana | 933 m² | 643 |
| 2026-05 | rolna | 1 940 m² | 696 |
| 2026-05 | rolno-budowlana | 3 343 m² | 778 |
| 2026-05 | rolna | 857 m² | 525 |
| 2026-05 | rolna | 1 361 m² | 182 |
| 2026-04 | rolna | 5 600 m² | 89 |
| 2026-04 | rolna | 7 600 m² | 89 |
| 2026-04 | rolna | 2 900 m² | 683 |
| 2026-04 | rolna | 17 341 m² | 104 |
| 2026-02 | rolna | 1 277 m² | 687 |
| 2026-02 | rolno-budowlana | 1 897 m² | 1 318 |
| 2026-02 | rolna | 1 000 m² | 820 |
| 2026-01 | rolna | 379 m² | 1 298 |
Confirm planning, legal and technical matters with the competent office and an appropriate professional. Data may be incomplete or delayed at the source.