House size decides layout, cost, and comfort. In 2025, families in Bangalore, Patna, and Lucknow are choosing compact 800 sq ft homes, practical 1200 sq ft 2BHKs, and spacious 2000 sq ft 3BHKs. This guide shows the best size options, cost, and design tips.
800 sq ft house plan
- Works well for a 2BHK on a 20×40 ft plot
- Layout: two bedrooms, hall, kitchen, one or two bathrooms
- Ideal for couples or nuclear families
- Average cost:
- Bangalore: ₹19.2 lakh
- Patna: ₹15.2 lakh
- Lucknow: ₹16 lakh
1000 sq ft house plan
- Best for compact 2BHK with more living space
- Fits on a 25×40 ft plot
- Layout: two bedrooms, hall, kitchen, dining corner, two bathrooms
- Cost in 2025:
- Bangalore: ₹24 lakh
- Patna: ₹19 lakh
- Lucknow: ₹20 lakh
1200 sq ft house plan
- Works for 2BHK or small 3BHK
- Fits on a 30×40 ft plot
- Layout: three bedrooms possible if planned smartly
- Cost in 2025:
- Bangalore: ₹28.8 lakh
- Patna: ₹22.8 lakh
- Lucknow: ₹24 lakh
1500 sq ft house plan
- Standard for a full 3BHK
- Fits on a 30×50 ft or 40×40 ft plot
- Layout: three bedrooms, hall, kitchen, dining, and parking space
- Cost in 2025:
- Bangalore: ₹36 lakh
- Patna: ₹28.5 lakh
- Lucknow: ₹30 lakh
2000 sq ft house plan
- Suits large families with luxury needs
- Fits on a 40×50 ft or 40×60 ft plot
- Layout: four bedrooms, two living rooms, modular kitchen, study, parking, and open space
- Cost in 2025:
- Bangalore: ₹48 lakh
- Patna: ₹38 lakh
- Lucknow: ₹40 lakh
Planning tips by size
- 800–1000 sq ft: keep open layouts, avoid too many partitions
- 1200–1500 sq ft: balance between rooms and storage
- 2000 sq ft: add study, puja room, or guest room for future needs
Looking for a house plan by size? Share your plot dimensions with Build On Click. Get a free layout with cost estimate today.
FAQs
What is the cheapest house size to build in 2025?
An 800 sq ft house is the cheapest, with costs starting around ₹15 lakh in Patna.
Which is the best size for a small family?
A 1000–1200 sq ft 2BHK works well for couples or families with one child.
How much does a 1500 sq ft 3BHK cost in Bangalore?
Around ₹36 lakh at current 2025 construction rates.
Can I build a duplex on a 1200 sq ft plot?
Yes, you can build a duplex 3BHK on a 30×40 ft (1200 sq ft) plot with smart design.
Which size is best for future resale value?
1200–1500 sq ft homes balance cost and demand, making them easier to resell.