Miniwojna gives you their thoughts on the cardboard building range from Baltazar Games in this review article.
From the post:
Baltazar Games is a small Polish company, producer of card games and cardboard wargaming buildings.
The cardboard buildings which I’m writing about today were received from publisher, specifically for reviewing purposes. Package was very sturdy – cards were inside rigid cardboard envelope, additionally protected by a foil. Nine sheets of A4 cardboards contains – watchtower (two sheets), two different designs of wooden crates (two sheets again), tenement house (two sheets) and small cottage. Last two cards are printed with cobblestones and may be used as bases for assembled buildings. Very similar set is available at the producer’s webstore as a “Trade outpost” for about 10 EUR.