Briefly About Conditions
It usually takes 2-3 working days to finalize a project’s renderings set.
To provide you with preliminary estimation we need the project’s info like:
ACAD files
PDF files
Sketches
Photos of actual site
Materials' descriptions
Samples photos and links to producers’ specific pages.
How many camera views? Day and night? Before and after? Plans? 
Finalize your design and then start the rendering.
Or you can get preliminary rendering and then experiment with your design having almost instant visual control. 
We cannot cover all the situations, of course. Every project is different. 
For start email any questions to torockov1@gmail.com