The dataset is freely available, while licence policy is respected
The dataset is available under the Open Data Commons Open Database License (ODbL) licence in a geopackage format.

You must give appropriate credit, provide a link to the license, and indicate if changes were made.(for example, "© how-old-is-this.house, 2020")

ShareALike means If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.

Petersburg version from 07.10.2021, 1633 user corrections, log

Moscow, version from 07.10.2021, 1613 user corrections, log
Kaliningrad, version from 07.10.2021, 274 users' corrections, log

Kazan, version from 01.05.2021, 241 user corrections, log

Kirov, version from 11.10.2021, 42 users' corrections, log

Nizhny Novgorod, version from 07.10.2021, 119 users' corrections, log
Penza, version from 17.08.2021, log

Vladimir, version from 25.10.2020, 125 user corrections, log

Voronezh, version from 08.04.2021
Yekaterinburg, version from 01.05.2021, 402 user corrections

Data used for project:
Open data by The Federal Service for State Registration, Cadastre and Cartography (Rosreestr)
a collaborative project to create a free editable map of the world.
Open data by the Ministry of Culture of the Russian Federation
a multilingual open-content collaborative map, where anyone can create place tags and share their knowledge.
website about the architecture of houses in Saint Petersburg.
the machine-readable open data portal of Saint-Petersburg