As we know that 4th house and Mars is karak of property. For Purchase a property we have to needs to expense our accumating wealth so 2nd and 12th house is also involved. 11th house is indicating profit so purchase of land is indicating profit of Property. If you purchase a property on loan then 6th house is also involved. So Timming of purchase of Property
By Dasha
1)Look 4th house and 4th house lord and Mars and 4th from Mars.
2) Planet associated with above either via placement or aspects or Conjunction may be able to give Property. So during their Dasha or Antardsha, native may purchase or sell Property according to their indication in chart.
By K.P.
1) When during Dasha- Antardsha- Pratyantar Dasha you will find 4th, 11th, 12th house relationship then you can purchase a home.
2)When during Dasha – Antardsha- Pratyantar Dasha you will find relationship of 4th,6th, 11th, 12th house you can purchase home via loan.
3)When during Dasha- Antardsha- Pratyantar Dasha you will find relationship of 4th,2nd, 11th, 12th then you can Purchase a property via your accumulated wealth.
4)When during Dasha- Antardasha- Pratyantar Dasha you will find relationship between 3rd, 4th, 5th,11th then Native will sell his Property with good value.
5)When during Dasha Antardsha Pratyantar Dasha you will find relationship between 3rd, 4th, 6th, 8th, 12th then he lost Property.
By Transit
1)When Saturn and Jupiter both are either aspected 4th house, 7th house or 4th house lord or Mars then native may purchase Property.
2)When Saturn Jupiter both are aspected 3rd house and Mars then loss of Property is possible if 4th house lord is also not well placed during transit.
3) Transit of Ketu over natal Mercury or natal Mars or trine from above may be indicating loss of land.
4) Transit of Jupiter over natal Mars or Mercury or trine from any above may be indicating gain of land.
5) When Jupiter is transit over that sign where Mars has maximum AV then native may be purchased a land but Jupiter also have good AV and SAV that time.
6)When Mars is transit over that sign where Mars has maximum AV then that time is good for purchase or sell land for making profit.