वास्तु मण्डन (मण्डन सूत्रधार - गृह, राजप्रासाद, दुर्ग एवं नगर-वास्तु सटीक)

Ch. I – Miśrakādhyāyaḥ 17
48. If the Sun is in Cancer (Karka), Leo (Siṁha), Capricorn(Mṛga) and
Aquarius(Ghaṭa), one can start construction of a house facing
the East and West, and if the Sun is in Libra, Scorpio, Aries and
Taurus, one can construct a house facing the South and North.
49. Due to mistakes, if anybody builds a house in other than the
prescribed form, he will have disease, affliction, loss of wealth and
death.
50. In a year, when the Sun moves towards the East, and rests in
Virgo³ and in two other zodiac signs, the lower and forepart of a
door should not be constructed as it brings death, but the
construction of the sides(of the door) is auspicious.
Thus ends the result of months and the passage of the Sun from
one sign to the next.
51. In the dual nature of the zodiacs and in the fixed Lagna and
auspicious auguries it is said that the construction of a house
would be favourable.
52. With 3, 6, 12, Krūra, centres and with three favourable cor-
ners, the building of the house is auspicious, but the 8th posi-
tion brings in death.
53. According to the good signs of five planets and in the
auspicious Lagna- palaces, marriage centers and temples should
be constructed according to the science of the omens and one
should not think otherwise.
3. Three Zodiac signs are Virgo, Libra, and Scorpio.