An important part of doing things well is picking the right time to do it. Muhurthas have been used since times immemorial to find a period of time, even pin-point of time that is uniquely suited to you.
Astrology readily lends itself through the study of Vaasthu to help you build (or correct) spaces to give the best outcomes. This is an ancestral study that stays true despite the passage of time.
It is a simplistic representation of what astrology can do for you when I say Muhurtha and Vaasthu help you bring out the best for your situation. The method of arriving at these guide-points is a deeply scientific, procedurally-rich one. I use several computations and tools (aided by a state-of-the-art computer), and my considerable experience to point out conditions and logistical mandates that are in keeping with your situation.
For this very reason, using Muhurtha and Vaasthu to your advantage is no antiquated approach.