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Data Lake vs Data Warehouse vs Lakehouse The Definitive, Practical Guide

Data architecture breakdown: when each model wins (and when it doesn’t)

Sharon Sahadevan's avatar
Sharon Sahadevan
Oct 20, 2025
∙ Paid

  • Warehouses = governed BI at speed.

  • Lakes = any data at low cost, ML-friendly, governance is on you.

  • Lakehouses = ACID tables on object storage, unify BI + ML, but require engineering maturity.

  • Most orgs run hybrids; the trick is getting governance, cost, and interoperability right.

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© 2025 Sharon Sahadevan
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