Carmel Partners is a privately held multifamily real estate investment, development, and asset management firm founded in 1996 by Ron Zeff. The firm employs a vertically integrated platform that encompasses acquisitions, development, construction management, asset management, and debt investments. Carmel targets supply-constrained markets with high barriers to entry, focusing exclusively on multifamily assets across select U.S. metro areas including Northern and Southern California, New York, Seattle, Boston, Denver, Washington D.C., Dallas, and Hawaii. The firm executes three primary value creation strategies: ground-up development, value-add renovation of existing properties, and opportunistic debt investments. Since inception, Carmel has bought, renovated, or developed over 57,000 apartment units with a combined estimated gross value of $23.7 billion. Through its fund series launched in 2003, the firm has raised over $8.5 billion from institutional investors including U.S. and international pension funds, endowments, foundations, and family offices. In April 2026, Carmel closed its ninth fund at $1.35 billion. The firm operates regional offices in San Francisco, Los Angeles, New York, Seattle, Denver, and Washington D.C., and maintains in-house teams covering all aspects of the investment lifecycle including a five-person data science and research team that provides proprietary rent growth forecasting. Carmel's portfolio is concentrated in West Coast markets, particularly California, and in the New York metro area, creating geographic concentration exposure.