The ground floor consists of a built-up area of 600 sq. ft. as well as a 2' utility area for basic daily chores. In addition, 15'x40' West-facing G+1 duplex house plan features an open level design with free flowing space in combination with ease of access and comfort through out the house. There is a lavish parking space that is strategically located at the front section of the house. It is 13’11” x 15’9” and it is more than sufficient for almost any vehicle. The stairs that are located in the southwest section of the house have a north-south orientation and lead towards the upper floor. For better accessibility the main entrance has been placed in the north west section of the house. The living hall measuring 7’2” x 10’6” (second floor) serves as the main area of relaxation also referred to as the core relaxation space, the open kitchen in the southeast also known as the self serving kitchen model has an approximate measurement of 6' x 5" and is optimized for efficiency. On the ground floor there’s a southwest bedroom measuring (6' x 8'10") and a common bathroom with WC (3’2” x 6”) that completes the essential privacy and comfort needs on that level.

The first floor has been reduced to a 570 sq. ft. built-up area and is quite cleverly split up into two pairs of compact, self-sufficient units that can be lived in or rented out, depending on what the owners wish to do. Movement and separation between the two spaces is aided by the shared 2’ utility strip as well as a central passage (4’5’’ x 9’10’’). The east facing unit has a living space containing a northwest entrance that has a . Furthermore, there are a style fixed bed/sitting desk in the southwest facing corner which is roughly 6’ x 8’10 and a closet Fitt's room as well as a bathroom (3’2” x 6’). In comparison, the west facing unit also has a living space fused with a hawaiin style kitchen in the northeast featuring a slightly larger (7’2” x 11’2”) living room. In addition, there is a corresponding bedroom southwest (6’ x 9’5”), adjoined with a northwest facing bathroom (7’2” x 3’4’’).

What makes the plan unique is the efficient and almost mirrored dual independent house configurations at the first floor, serving extended families or maximizing rental income. The building is set to face west and utilizes premade Vastu guidelines regarding architecture concerning pooja corner placement, ventilation windows, lights and other access points. Each space, albeit small, provide precise functionality with respect to stretches of unusable design space.

In essence, the design is versatile, economical, and compliant with vastu requirements, making habitation easy and modification flexible over time. Regardless of whether it is functioned as a full duplex or partially as separate rental units, the RB0021 plan guarantees a balanced integration of living, functionality, and growth opportunities.