What is the correct position of a Master bedroom is placed in a house as per vastu floor design?

For master bedroom, it is said to be at South West portion (Kuber corner)

In vastu, believed as this corner is meant for prosperity & best position of master bed room in house design,

You may try for similar plans in our website (HousePlansCenter.com) and if you wish you can ask them to do it for you at best house concept.

Can we build a ground floor 2 BHK house in a 22’x54’ square feet plot? What are some example plans and designs I need?
2BHK house in a 2254 plots in the segment of building are 2045 following are referring plans.. you can get more also there..

35X45 HOUSE PLAN 4BHK DUPLEX | House Plans Center
House Plans Center 35’x45′ HOUSE PLAN – 4BHK DUPLEX HOUSE Ground Floor PlanSitout, Foyer, Living, Pooja, Staircase, Dining, Common Bath, Bed Room with Attached bath room,
http://houseplanscenter.com/35×45-house-plan-west-face/

35X45 HOUSE PLAN 4BHK DUPLEX | House Plans Center
House Plans Center 35’x45′ HOUSE PLAN – 4BHK DUPLEX HOUSE Ground Floor PlanSitout, Foyer, Living, Pooja, Staircase, Dining, Common Bath, Bed Room with Attached bath room,
http://houseplanscenter.com/35×45-house-plan-west-face/

30×50 house plan | House Plans Center | 2 BHK House Plan, 3 BHKPlan
House Plans Center 30’x50′ HOUSE PLAN – Ground floor 2BHK & 1st Floor 3BHK Flat floor concept Ground Floor Plan – 2 BHK Flat2 BHK House Plan consist of 2 Car parking, 30×50 house plan |
https://houseplanscenter.com/30×50-house-plan/

What should be the pillar size for a residential building on a 30 x 40 site, and how many pillars are required for g+3 floor building?
Generally for 30×40 site if you have further plan also means up to G+3 floors. Total around 12 to 13 is required. Size of the columns for house & number of columns is dependent on SBC (Soil bearing capacity), load distribution of dead load, Live load, soil types, seismic zone, factor of safety (FOS) like many factors will be considered during structural analysis, based on the structural analysis the structural drawings are prepared. To be serious, It is not lucky number as we observed many of us in practice at house construction site some are randomly gives ideas without technical knowledge is extremely unfortunate. For structural Design drawings requirements you may contact HousePlansCenter.com. we will happy to help you on this.