20×30 House Construction Cost in Bangalore
A 20×30 ft site is 600 sq.ft. At roughly 550 sq.ft built-up per floor, turnkey construction runs from about ₹9.0 lakh for a ground-floor house to ₹60.7 lakh for a G+3 building, depending on floors, package and finishes.
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A 20×30 ft plot is 600 sq.ft. Turnkey construction cost ranges from about ₹9.0 lakh for a ground-floor house to ₹60.7 lakh for a G+3 building, driven mainly by the number of floors and the package (₹1,799–₹2,529/sq.ft, GST included). Configuration-wise costs, planning notes, rental options, timeline and FAQs are below. For the city-wide picture see construction cost in Bangalore or use the construction cost calculator.
20×30 Plot = 600 Sq Ft: What It Means for Cost
A 20×30 ft plot measures 600 sq.ft. After the front, rear and side setbacks in your sanctioned plan, we use about 550 sq.ft of built-up area per floor as a planning figure (a range of 500–600 sq.ft). The approved drawing gives the exact number.
Construction is costed on built-up area × package rate, so the two levers that move a 20×30 budget most are the number of floors and the package (₹1,799–₹2,529/sq.ft, GST included).
20×30 is commonly called a half site in Bangalore (see full site and half site in square feet). It is the smallest common layout site, so every square foot of planning counts. The usual choices are a G+1 family home or a G+2/G+3 building with rental units on the lower floors.
20×30 Construction Cost by Configuration
| Configuration | Approx. Built-up Area | Estimated Cost Range (incl. GST) | Typical Use |
|---|---|---|---|
| Ground floor only | 500–600 sq.ft | ₹9.0 lakh – ₹15.2 lakh | Compact 1–2 BHK home |
| G+1 house / duplex | 1,000–1,200 sq.ft | ₹18.0 lakh – ₹30.3 lakh | 2–3 BHK family home |
| G+2 (owner + rental) | 1,500–1,800 sq.ft | ₹27.0 lakh – ₹45.5 lakh | Owner floor + rental unit(s) |
| G+3 rental building | 2,000–2,400 sq.ft | ₹36.0 lakh – ₹60.7 lakh | Rental income focus (check FAR/approval) |
Ranges apply the Dream Value (₹1,799) to Signature Home (₹2,529) rates. Civil construction only — approvals, compound wall, borewell and external works are separate. Whether a G+2 or G+3 is permitted on your plot depends on road width, FAR/FSI and parking norms. Check your own numbers with the construction cost calculator.
Bar length scaled to the upper figure of each range. Civil construction only, before approvals and external works.
20×30 G+1 Cost — Package by Package
Using ~1,100 sq.ft built-up for a 20×30 G+1:
| Package | Rate / Sq Ft | Approx. Cost (1,100 sq.ft) |
|---|---|---|
| Dream Value | ₹1,799 | ₹19.8 lakh |
| Dream Home | ₹1,919 | ₹21.1 lakh |
| Luxury Home | ₹2,129 | ₹23.4 lakh |
| Premium Home | ₹2,329 | ₹25.6 lakh |
| Signature Home | ₹2,529 | ₹27.8 lakh |
Adjust for your actual built-up area. Full specification comparison: house construction packages in Bangalore.
Planning a House on a 20×30 Site
- Frontage: with a 20 ft front, the staircase, parking and entrance compete for space. Placing the staircase along one side keeps rooms regular.
- Parking: plan ~180 sq.ft per car and ~40 sq.ft per two-wheeler. On a 20×30, one car usually fits in the front setback or under a stilt floor.
- Light and ventilation: narrow plots often have only the front and rear open, so plan a duct or open-to-sky space for the middle rooms.
- Room sizes: keep kitchens and bathrooms to workable minimums and use upper floors for bedrooms.
- Going up: the foundation is designed for the final number of floors, so decide on G+2 or G+3 before construction starts.
Floor plans are prepared for your specific plot, orientation and family requirement. These are common patterns, not a fixed design. See architectural design.
20×30 Rental Building Configuration
For rental income on a 20×30, owners usually build G+2 or G+3 with one 1BHK or 2BHK unit per floor. Key points: one compact staircase, separate electrical meters, enough water storage (sump and overhead tank) for all units, and parking that meets the norms for the number of units. Confirm FAR/FSI and parking rules for your plot before finalising drawings.
See also: rental building construction in Bangalore.
20×30 Construction Timeline
| Stage | Indicative Duration |
|---|---|
| Design, drawings & approval | 4–10 weeks (approval varies by authority) |
| Foundation & plinth | 3–5 weeks |
| Superstructure (per floor) | 5–7 weeks per floor |
| Masonry, plastering, waterproofing | 4–6 weeks |
| Flooring, doors, windows, painting, finishing | 8–12 weeks |
Total time depends mostly on the number of floors: each additional floor adds about 5–7 weeks of structure plus its share of finishing. Approvals, design finalisation, weather and material selection also affect the schedule.
What Changes a 20×30 Construction Cost
- Number of floors (the biggest lever) and actual sanctioned built-up area
- Package / material specification (₹1,799–₹2,529/sq.ft)
- Soil condition — soft or filled-up soil, rock or water at excavation
- Number of bathrooms and kitchens (rental units add both)
- Elevation design beyond basic plaster and paint
- Compound wall, gate, borewell, BESCOM/BWSSB, rainwater harvesting
- Approval and betterment charges for the jurisdiction
See the full breakdown on construction cost in Bangalore, or compare with the 30×40 house construction cost. To build with us, see house construction in Bangalore.
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