Sims 2 Mansion Blueprints This Is A Question For People Who Play The Sims And/or The Sims 2 Only:?

This is a question for people who play the Sims and/or the Sims 2 only:? - sims 2 mansion blueprints

Before the construction of a house in The Sims or The Sims 2, no plans are drawn up first? As usual.
In addition, you want houses standard size for your Sims or how they build houses?

PS
There is a problem with my Sims 2 game, I think. How to book a holiday, but he said little later, there is something wrong, and we have to cancel your holiday. Can someone tell me how to solve this problem and what is the problem?