Buildings in Sims FreePlay are split into three groups: Community, Workplace, and Houses. Building another community building will increase the price for the next community building but won't change the price for your next workplace or house. Building a house will increase the price for your next house but won't change the price for your next community building or workplace.
Recently FM has changed it so that the length of time for workplace buildings that are required for quests remain the same for those locations no matter how many workplace buildings you have already while the price and sim requirement increases.
Workplace Buildings
Fire Station - will always be 2 minutes 30 seconds; §500; 1 sim because of the tutorial
Real Estate Agency - will always be 6 hours 30 minutes
Simtown Elementary - will always be 14 hours 15 minutes
Town Hall - will always be 20 hours 30 minutes
Stadium
Art Gallery
Science Lab
Recording Studio
Simtown High
Movie Studio
Police Station
Hospital
The lowest requirements:
The current highest requirements:
Workplace Buildings: Requirements
0 Workplace Buildings (the tutorial):
- 2 minutes 30 seconds; §500; 1 sim
- 2 hours; §500; 1 sim
- 4 hours; §600; 4 sims
- 8 hours; §2,500; 5 sims
- 12 hours; §2,500; 6 sims
- 16 hours; §5,000; 8 sims
- 1 day; §10,000; 10 sims
- 1 day 4 hours; §20,000; 12 sims
- 1 day 8 hours; §100,000; 14 sims
- 1 day 12 hours; §150,000; 16 sims
- 1 day 12 hours; §600,000; 18 sims
- 1 day 12 hours; §1,000,000; 18 sims