This animation was created in blender 2.64.
I used rendering engine with Cyckes and Hdri map weighs 150 mb is free. All textures downloaded in cgtextures.com. Whole the scene contains an 10 milions verticles and file size 1.2 GB.
Kitchen was modeled by me and the rest of the equipments of the house I downloaded 3darchive.com then I had to apply a texture to them and arrange mutandis. The character created in Makehuman.
This image rendered Cycles 2500 sampels rendering time 1 hour
One frame renderings in about 4 minutes and some even 6 minutes of 800 samples per frame. To render it took about 9 GB of ram. Trees have the highest verticles. Some noise that arise when rendering I was able to remove the help of composition, but in some frames you can see is light noise. Water created on my workstation 30 minutes with resolution 200.
Some test renders
Cycles 800 sampels rendering time 4 minutes
Cycles 800 sampels rendering time 3 minutes
Test render without composition, rendering time 1000 sampels 5 minutes
Kitchen Cycles 1000 sampels rendering time 8 minutes
No materials rendering with cycles 1000 sampels 3 minutes
100 sampels 4 minuter
200 sampels 8 minutes