800 Sq Ft House Plan in India: 2 BHK Layouts, Duplex Option, Cost

What an 800 sq ft house plan gives you

An 800 sq ft house plan gives you a proper 2 BHK: two bedrooms that each take a double bed and a wardrobe, a hall where six people can sit, a kitchen with an L counter and at least one toilet. At this size, clients in our Indore studio stop asking us to shave inches off every wall.

Most people searching this size own a 20x40 plot, which is exactly 800 sq ft. After the front and rear setbacks that most municipal bylaws require, the built-up area on one floor is about 620 to 700 sq ft. If you want the full 800 sq ft inside the house, you either build on a slightly larger plot like 25x40 or go to a first floor.

The jump from 600 to 800 sq ft is the most valuable 200 sq ft in small house design. Compared with a 600 sq ft house plan, you gain a second real bedroom, a dining space and a chance at an attached toilet. The pillar on how to choose the right house plan explains how to weigh these gains against budget.

Room sizes for an 800 sq ft 2 BHK

These are the sizes we use when we draw an 800 sq ft 2 BHK house plan. They are not generous, but every room does its job.

The remaining 130 to 140 sq ft goes into walls and a short passage. Walls alone take 9 to 11 percent of a small plan, which is why free plans that promise a 3 BHK in 800 sq ft never add up on site.

20x40 single floor layout that works

A 20x40 house plan on a single floor runs front to back in three bands. The front band holds the verandah and two wheeler bay. The middle band holds the hall with the main door on one side and the master bedroom on the other. The rear band holds the second bedroom, the kitchen and the toilets.

1. Front 6 ft: open verandah with a 3 ft ramp for scooters and the main door set back from the road.
2. Next 15 ft: hall on the entry side, master bedroom beside it with the attached toilet tucked behind.
3. Next 11 ft: second bedroom on one side, kitchen on the other, common toilet between them.
4. Rear 3 to 4 ft: utility strip for washing, the gas cylinder and a rear door for the kitchen.

The one thing this layout cannot do is give both bedrooms a side window if the neighbour builds to the boundary. We solve this with a 3 ft side strip, or a 3x4 ft internal light well between the kitchen and the second bedroom. The 20x40 house plan ideas post shows three variants of this band layout.

800 sq ft duplex house plan: the 400 plus 400 option

An 800 sq ft duplex house plan splits the same area over two floors, roughly 400 sq ft each. The ground floor takes the car bay, hall, kitchen and a common toilet. The first floor takes two bedrooms and an attached toilet. It is the plan we recommend when a car is non negotiable and the plot is only 20x40.

The trade offs are real. The staircase takes 50 to 60 sq ft on each floor, so usable area drops to about 700 sq ft, the structure costs more, and older parents climb stairs every night. In return the duplex gives a car bay, a terrace and better privacy than any single floor 800 sq ft plan.

• Ground floor: 9x16 ft car bay, 11x13 ft hall, 8x9 ft kitchen, 4x6 ft toilet, staircase.
• First floor: 11x12 ft and 10x11 ft bedrooms, 4x7 ft attached toilet, 5x8 ft balcony over the car bay.
• Terrace above for the water tank, solar panel and drying.

Our structural engineer insists on an M25 concrete frame with isolated footings for any duplex on a 20 ft wide plot, because the slender footprint has little room for error. The post on duplex versus single storey houses goes deeper into the cost and lifestyle comparison, and our duplex house plans collection shows what the elevation can look like on a 20 ft front.

Parking in an 800 sq ft house plan

An 800 sq ft house plan with car parking on a single floor is possible on a 20x40 plot, but only if you accept a smaller hall. A 9x16 ft car bay at the front takes 145 sq ft, which pushes the hall down to about 11x12 ft and removes the verandah.

In practice, families with a car and a 20x40 plot go duplex. Families without a car keep the single floor plan and park two wheelers in the verandah. On a 25x40 or wider plot the car fits in the side setback and the single floor plan stays intact.

Vastu notes for 800 sq ft plans

Vastu guidance for an 800 sq ft house is the same as for any home, just with less room to move things around. Put the main door in the north east portion of a north or east face, the kitchen in the south east, the master bedroom in the south west and the toilets in the north west or west. On a 20x40 plot facing east, this means the master bedroom sits at the rear right and the kitchen at the front right behind the hall.

This is Vastu guidance, not engineering. Where Vastu and ventilation disagree, we tell clients to keep the cross ventilation and fix the Vastu with colour and small changes instead of moving a wall.

800 sq ft house construction cost in 2026

In 2026 an 800 sq ft house costs Rs 1,750 to 2,100 per sq ft in tier 2 cities like Indore, Bhopal or Jaipur, and Rs 2,200 to 2,500 per sq ft in Mumbai, Bangalore, Pune or Delhi NCR. That gives Rs 14 to 20 lakh for a finished single floor house with standard finishes, excluding land and boundary wall.

A duplex version costs 8 to 12 percent more because of the extra slab, stair and columns, so budget Rs 15.5 to 22 lakh. Add Rs 1 to 1.5 lakh for a compound wall and gate, which most first time builders forget. The post on what it costs to build a 1,000 sq ft house breaks the bill into structure, finishing and services.

Next step: get your 800 sq ft plan drawn

Decide on single floor or duplex based on the car, one toilet or two based on budget, and keep the hall at 11x15 ft whatever else moves. Browse the 800 sq ft house plans in our gallery to see both single floor and duplex versions with elevations.

Send us your plot size, facing and budget through the floor plan design service and we will prepare two or three plan options for your site. The first consultation is free. Call +91 73165 33888 or write to contact@housedesignindia.com.