Here are some Vastu tips:

As a part of Vaastu advice, it is considered good to place a water body at the corner in the northeast direction of the house.
For constructing a plot, the best directions are South, west and southwest.
Vaasthu remedies suggest that the construction should be done in such a manner that there is more of open space in Northern and Eastern directions.
The designing of the house should be done keeping in mind that it must provide for ample space for cross ventilation and sunlight.
No trees are recommended in the north, east or northeast direction. If you still want to grow plants here, then only opt for small plants.
Plant trees taking care that their shadow does not fall on the house.
Any photo that depicts violence in any form should not be placed in the house.

Vastu Purusha

Vastu Purusha is the god for construction of structures and buildings. Once upon a time, an unknown person came into existence and he obstructed the earth and the sky with his huge body. The Devtas suddenly caught the person and threw him below with his face down, and whichever part of the body of the person was held by different Devtas, the Devtas became presiding deities of that part of the body. The creator, Brahma, had made the person as “god of the house” - ‘Vastu Purusha.’
There is another interesting story of Vastu Purusha in Matsya Purana. It narrates the birth of Vastu Purusha. In an encounter with a Rakshasa called Andhikasur, Lord Shiva became tired and exhausted, and he began to sweat profusely. A man was born out of the drops of Lord Shiva’s sweat. He looked very cruel. He was very hungry and began to make penance to appease Lord Shiva and to get a boon from him. Lord Shiva was pleased with his penance and appeared before him. The devotee prayed to Lord Shiva, “Oh Lord! Please permit me to eat away all the three worlds.” Lord Shiva granted his prayer. He got possession of all the three worlds and was about to eat the terrestrial world. The celestial beings, Brahma, Shiva, and the demons were terrified and they caught hold of the devotee and encircled him. Forty-five deities caught hold of the devotee and pressed him down. This Devotee has been in that position ever since that time. Lord Brahma blessed him and said that he would be the deity of all the plots and constructions, and offerings would be made to him. In return Vastu Purusha is said to be taking care of the inmates of the building.

Knowledge OF Directions

According to Shastras,if we worship,revere and respect the lords of these eight directions,they will shower on us their blessings and benefits.
Esshan ie Ishwar(North-east) - He grants us wisdom,knowledge and serve all comforts and relieves us from sufferings.

Indra(East) - He is the king of angels. He gives wealth and all pleasures of life.

Agni/Fire(South-east) - He gives us beautiful personality and all the best of life.

Yamaa or Yamaha(South) - He is god of death.He is embodiment of dharma.He eradicates evils and grants all good things.

Nissan or Niruti (South-west) - He vanishes fear about our enemies.

Varun(West) - He is god of rain. He showers his blessings through rain and brings prosperity and pleasure in life all round.

Vayu/Wind(North-west) - He bestows on us long life,health and strength.He is the basic of all life.

Kuber (North) - He is god of wealth.He grants us wealth and all comforts of life.