Nice game
I have found two bugs:
1. I had 120 seconds of 50% discount on housing. Nice and working, but for some time I could see price of 7500 (discounted) but the real cost was 15000 (as usual). I don't know if it was during 120 seconds period or a bit longer time. After long time after that, housing cost was displayed correctly.
2. The Cafe should be buffed a bit. It provides high profit without any housing around. Building some doesn't apply to total income.