3BHK House Plan — Architect-Designed Layouts for Indian Families
Three bedrooms, hall, and kitchen — India's most popular family home. PlanMyPlot designs Vastu-compliant 3BHK house plans for 30x40, 40x60, and custom plots. Ground floor, G+1, and duplex configurations. Registered architects. 7-day delivery from ₹4,999.
Executive Summary
A 3BHK house plan includes three bedrooms, a hall, and a kitchen — the most popular residential configuration for Indian families of 4–5 members. The minimum plot size for a functional 3BHK on the ground floor is 30×40 (1,200 sq ft), yielding approximately 950–1,050 sq ft of built-up area. For a spacious 3BHK with a garden and double car parking, a 40×60 plot (2,400 sq ft) is ideal.
A complete 3BHK house plan includes a master bedroom (12×14 ft), two additional bedrooms (10×10 ft minimum), living room (14×16 ft), separate dining, modular kitchen, 2–3 bathrooms, utility room, and covered parking. In Bangalore, the 3BHK is the single most-requested house configuration — accounting for over 60% of PlanMyPlot's delivered floor plans. Every design is Vastu-reviewed and BBMP/BDA plan-approval-ready.
Key Specifications
Section 01
What's Included in a 3BHK House Plan
A properly designed 3BHK is a carefully balanced arrangement of private, semi-private, and public spaces. Here is a room-by-room breakdown:
Min: 12×14 ft | Ideal: 14×16 ft
Attached bathroom + walk-in wardrobe
Min: 10×10 ft | Ideal: 10×12 ft
Children's room or home office
Min: 10×10 ft | Ideal: 10×12 ft
Guest bedroom, elderly parents
Min: 14×16 ft | Ideal: 16×18 ft
Separate from dining, glazed front
Min: 10×10 ft | Ideal: 10×12 ft
Adjacent to kitchen
Min: 8×10 ft | Ideal: 8×12 ft
L-shape + utility passage behind
Min: 4×6 ft each | Ideal: 5×8 ft (master)
1 attached master, 1 attached bed 2, 1 common
Min: 9×18 ft (1 car) | Ideal: 20×18 ft (2 cars)
Covered; 2 cars on 40×60
Section 02
3BHK House Plan by Plot Size
| Plot Size | Area | Built-Up Area | Configuration | Best For |
|---|---|---|---|---|
| 30x40 (G) | 1,200 sq ft | ~950–1,050 sq ft | Compact 3BHK + 1 parking | Standard urban family home |
| 30x40 (G+1) | 1,200 sq ft | ~2,100–2,200 sq ft | 3BHK per floor = 6BHK total | Duplex / family + rental |
| 40x60 (G) | 2,400 sq ft | ~1,800–2,100 sq ft | Spacious 3BHK + garden + 2 parking | Bungalow / senior-friendly |
| 40x60 (G+1) | 2,400 sq ft | ~4,200–4,400 sq ft | 4BHK home (3BHK + 1 on FF) | Premium family residence |
| 50x80 (G+1) | 4,000 sq ft | ~5,500–6,000 sq ft | 5BHK luxury home | Luxury / legacy residence |
30x40 Ground Floor
The most common 3BHK in Bangalore. Approximately 950–1,050 sq ft built-up — three bedrooms, living-dining, modular kitchen, two bathrooms, and one covered parking. Compact but fully functional. Columns can be cast from day one for a future G+1 addition.
30x40 G+1 Duplex
Two full 3BHK units stacked on one plot. Total ~2,100–2,200 sq ft. PlanMyPlot's most-delivered configuration in Bangalore — one unit for the family, one as a rental unit generating ₹15,000–₹25,000/month.
40x60 Ground Floor
A genuine bungalow experience. With 1,800–2,100 sq ft of built-up area, room sizes are generous (master up to 12×16 ft), double car parking, a rear garden, and a utility yard. Most popular for families with elderly members.
40x60 G+1
The quintessential Bangalore family home. Parents on the ground floor, children and master suite on the first floor, with a large shared kitchen and living area. Total built-up area ~4,200–4,400 sq ft for a family of 6–8.
Section 03
3BHK Duplex House Plan — The Smart Investment
The 3BHK duplex — two independent 3BHK units on a single plot — is the most popular investment configuration among PlanMyPlot's Bangalore clients. The family lives on one floor and earns rental income from the other.
On a 30×40 site, a 3BHK duplex yields two units of approximately 950–1,050 sq ft each. Each unit has its own independent external staircase, its own main entrance, its own kitchen, and at least two bathrooms. The ground-floor unit gets garden access and covered parking; the first-floor unit gets a private balcony or terrace.
On a 40×60 site, the 3BHK duplex is even more compelling. With ~2,000 sq ft per unit, the generous 40-foot frontage accommodates two separate entrances and two dedicated car parking spaces without a shared driveway. Each unit essentially rivals a high-end 3BHK apartment.
Rental Yield Math — Bangalore 2026
₹18,000–₹35,000
Per unit / month
BDA layout 3BHK rental
₹36,000–₹70,000
Gross / month
From one 30×40 or 40×60 plot
10–14%
Gross rental yield p.a.
vs 6–7% for FDs
Design Essentials for a 3BHK Duplex
- • Independent external staircase — architecturally designed, not merely functional
- • Separate electrical meters from day one
- • Independent water sumps for each unit (eliminates billing disputes)
- • Sound attenuation: concrete slab + 50mm screed between floors
- • First-floor kitchen not directly above ground-floor bathroom
Construction Premium Over Single G+1
- • Second kitchen: ₹80,000–₹1.5L
- • Independent electrical panel: ₹40,000–₹60,000
- • Separate sump: ₹60,000–₹80,000
- • External staircase (designed): ₹1L–₹2L
- • Total premium: ₹2.5L–₹5L, yielding ₹40,000–₹70,000/month additional income
Section 04
Vastu for 3BHK House Plans
In a 3BHK, the additional bedroom creates more design flexibility and more Vastu complexity compared to a 2BHK. Here is the optimal room-by-room Vastu layout:
Master Bedroom
Southwest
Head pointing south/west. Attached bathroom in south/west. Must not be in northeast.
Children's Bedroom
Northwest / West
Vayu zone — movement, energy, growth. Ideal for children and teenagers.
Guest Bedroom
West / North
Guest rooms in the north attract positive social energy. West is also acceptable.
Living Room
North / East / NE
Most welcoming, light-filled zone. First room visible from the main entrance.
Kitchen
Southeast
Cook facing east. Alternative: northwest. Never northeast or southwest.
Pooja Room
Northeast
Dedicated room (8×8 ft+) on larger plots. Wall niche acceptable on 30×40.
Staircase
South / West / SW
Clockwise ascending. Never in the Brahmasthan (centre of house).
Bathrooms
South / West / NW
Never in the northeast — the single most common Vastu defect in Indian house plans.
Section 05
3BHK vs 4BHK — Should You Upgrade?
| Factor | 3BHK | 4BHK |
|---|---|---|
| Minimum comfortable plot | 30x40 (1,200 sq ft) | 40x60 (2,400 sq ft) G, or 30x40 G+1 |
| Ideal family size | 3–5 persons | 5–7 persons |
| Construction cost — Bangalore G | ₹20L–₹30L | ₹30L–₹42L |
| Resale demand | Highest overall | High, premiumised |
| Construction timeline | 10–14 months | 12–16 months |
| Rental income (duplex) | ₹36,000–₹70,000/month | ₹50,000–₹90,000/month |
Choose 3BHK If
- • Family has 3–5 members
- • Plot is 30×40 or 30×50
- • Budget for construction is ₹20L–₹35L
- • Building a duplex rental investment (3BHK has best occupancy rates)
Choose 4BHK If
- • Family has 5+ members needing dedicated private spaces
- • Plot is 40×60 or larger
- • Two generations living together and needing full privacy
- • Building in a premium location where 4BHK significantly outperforms on resale
Section 06
3BHK House Plan Construction Cost — Bangalore 2026
| Item | Cost |
|---|---|
| Architectural drawings (2D floor plan + 3D elevation) | Get Best Quote |
| Structural drawings (RCC design) | Get Best Quote |
| Working drawings for contractor | Get Best Quote |
| BBMP / BDA plan approval documentation | ₹20,000 – ₹50,000 |
| Civil construction (₹1,800–₹2,000/sq ft, ground floor ~1,000 sq ft) | ₹18L – ₹20L |
| Civil construction (G+1 duplex, ~2,100 sq ft) | ₹38L – ₹42L |
| Interior finishing (basic to mid-range) | ₹5L – ₹12L |
3BHK Ground Floor (30×40)
Total from drawings to ready-to-move: ₹22L – ₹32L depending on finishing quality.
3BHK G+1 Duplex (30×40)
Total from drawings to ready-to-move: ₹45L – ₹55L including both units fully fitted.
See all plans at PlanMyPlot Pricing →
Section 07
How to Get Your 3BHK House Plan Online — 5 Steps
Fill Your Design Brief
Share your plot size, facing direction, number of floors, special requirements (duplex, Vastu, rental unit, parking needs), and preferred timeline. Takes 5 minutes on our website.
Architect Call Within 24 Hours
A registered CoA architect reviews your brief and calls within 24 hours to discuss requirements, site constraints, and budget before design begins.
Concept 2D Floor Plan — Days 2–4
Initial concept floor plan delivered with all room placements, circulation paths, parking, setbacks, and the Vastu zone overlay. You review and give feedback via call or WhatsApp.
3D Elevation Design — Days 5–6
After 2D approval, the 3D front elevation is generated — facade design, external materials, window/door arrangements, parapet, and compound wall.
Complete Delivery — Day 7
All files — 2D floor plan, site plan, 3D elevation — delivered as PDF + DWG. BBMP/BDA-ready and contractor-ready. Complete package in 7 working days.
Design Tips from
Professional Architects
On a 30×40 3BHK, cast the ground-floor columns for G+1 loading from day one — the additional cost is ₹1.5L–₹2.5L at construction and saves ₹8L–₹15L if you add a floor later.
Design the master bedroom as a true suite — bedroom + bathroom + walk-in wardrobe in a continuous zone. On a 40×60 site, add a private balcony. This is the single feature that increases resale value most on a 3BHK.
Use an open-plan kitchen-dining layout — removing the wall between the kitchen and dining room in a 3BHK saves 40 sq ft and makes the entire public zone feel cohesive and modern.
Position all three bedrooms on the same floor if building G+1 — avoid splitting bedrooms across floors in a family home. Put social and parents' spaces on the ground floor, children and master on the first.
Invest in a proper utility room (5×8 ft) behind the kitchen — on a 3BHK without a utility room, washing machines, mops, and storage invade the kitchen over time.
In Bangalore, plan for at least one east-facing window in every bedroom — morning sun is a natural body-clock regulator and reduces the need for artificial lighting in the morning hours.
Commonly Asked Questions
Technical insights and project advice for this category.
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India's most-loved home configuration deserves the best floor plan. PlanMyPlot's registered architects design 3BHK house plans for plots of all sizes — ground floor, G+1, and duplex — Vastu-reviewed, BBMP/BDA-compliant, and delivered in 7 working days from ₹4,999.
Book your free consultation today and get your design brief reviewed within 24 hours.