Best 1 BHK flats in HSR Layout / BTM / Koramangala fringe
6 RERA-registered 1 BHK flats in HSR Layout / BTM / Koramangala fringe, ranked by investment score, not by advertising. Every project links to its full analysis, cost sheet and due-diligence report.
Top pick: SNN Estates Duomont by SNN
SNN Estates Duomont in HSR Layout / BTM / Koramangala fringe scores 71/100 with projected price growth of 10.4% a year, net-wealth CAGR 7.0% and cash-flow IRR 12.4%; the 1 BHK costs about ₹2.35 Cr (price modelled from comparables). Across all 6 1 BHK flats in HSR Layout / BTM / Koramangala fringe the median score is 63, median growth 9.5% a year, median price ₹14,050 per sq ft and median ticket ₹2.00 Cr; 1 are ready to move in.
Top 6
All 6, ranked
| Project | Score | Growth / yr | Net-wealth CAGR | Cash-flow IRR | Price / sq ft | Price | Status |
|---|---|---|---|---|---|---|---|
| SNN Estates Duomont SNN · HSR Layout / BTM / Koramangala fringe | 71 | 10.4% | 7.0% | 12.4% | ₹13,650 est. | ₹2.35 Cr 1 BHK | Under construction Dec 2030 |
| SNN Raj Etternia SNN · HSR Layout / BTM / Koramangala fringe | 70 | 8.8% | 6.9% | 8.7% | ₹14,500 est. | ₹71.0 L 1 BHK | Ready |
| Raj Etternia E Block (building 4) SNN · HSR Layout / BTM / Koramangala fringe | 63 | 9.4% | 5.4% | 7.0% | ₹14,050 est. | ₹6.08 Cr 1 BHK | Under construction Apr 2026 |
| Purva Westend Puravankara · HSR Layout / BTM / Koramangala fringe | 63 | 9.8% | 6.2% | 7.8% | ₹14,050 est. | ₹96.9 L 1 BHK | Under construction Dec 2018 |
| Signature Splendor Signature Dwellings · HSR Layout / BTM / Koramangala fringe | 60 | 9.2% | 6.1% | 7.5% | ₹10,350 est. | ₹53.3 L 1 BHK | Under construction Dec 2025 |
| SNN Raj Grandeur SNN · HSR Layout / BTM / Koramangala fringe | 57 | 9.5% | 5.5% | 7.0% | ₹14,050 est. | ₹2.00 Cr 1 BHK | Under construction Sep 2025 |
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Scores and projections are model outputs built from dated public evidence (Karnataka RERA filings, promoter quarterly updates, complaint registers, public ratings) and stated assumptions. They are research, not investment advice. How the numbers are built.