Answer8 - As far as possible it is better to avoid them especially in a residential building, since the houses should always be on a higher level than that of the road. In olden days palaces generally built on hillocks used to enjoy strength, stability and luxuries of life. However when the residential as also commercial activities are carried out in the same complex,basement in the East, North and the N-E sector can be made and used for storage and parking. If only base-ment is used for business, only 60% benefits are ob-tained in spite of good star position coupled with best of efforts.