The future of real estate investing: Pretium’s Don Mullen on the rapidly changing asset class

Founding Context & Motivation

• Don Mullen founded Pretium in 2012 with $57 billion in assets under management (AUM) following a decade at Goldman Sachs.
• Mullen predicted the post-2008 era would necessitate shifting 10 million Americans from homeownership to rentership while assets traded at a discount.
• He identified single-family homes and mortgages as a generational investment opportunity driven by systemic regulatory changes.
• Mullen's departure from Goldman Sachs was self-initiated, citing a preference for entrepreneurship over corporate hierarchy and a desire to add value outside the firm.

Market Dynamics & Demographics

• The US faces a persistent housing shortage projected to last until at least 2040 due to a construction halt during the post-crisis period against a backdrop of millennial demographic growth.
• Institutional investment currently controls only 3–4% of the single-family rental market, compared to long-standing dominance in multi-family housing.
• Homeownership rates in the US historically fluctuate modestly between 62% and 69%, but recent policy shifts have increased the renter population.
• 41% of US residents currently rent, with 70% of them preferring single-family homes over apartments but lacking the capital to buy.

Pretium's Business Model & Operations

• Pretium operates as the largest private owner-operator of single-family homes and the fourth-largest manager of residential assets (homes and apartments) in the US.
• The firm functions as a top non-qualified mortgage (Non-QM) lender, serving self-employed professionals, artists, and small business owners excluded from standard underwriting boxes.
• Pretium is a major lender for "fix and flip" renovations and a primary buyer of distressed mortgages to re-perform them for homeowners.
• The firm emphasizes owning the operating company to manage high complexity across ~150,000 units (valued $300k–$400k each) rather than just acting as a passive capital provider.

Interest Rates & Supply/Demand Mechanics

• Mullen argues that the rapid rise in interest rates destroyed the supply function (70–80% fewer homeowners selling) more than the demand function, paradoxically driving home prices up.
• He predicts that once interest rate direction becomes clearer following policy shifts on tariffs and immigration, real estate trading will become more aggressive.
• Mullen notes it is currently cheaper to rent a house than to own one, citing tax code changes (standard vs. itemized deductions) and high debt loads among potential buyers.
• Higher interest rates have temporarily slowed labor mobility, though Mullen views long-term renter growth as beneficial for GDP via increased workforce flexibility.

Future Growth & International Expansion

• Pretium plans to expand significantly into lending to home builders, land developers, and lot financiers as traditional banks exit these sectors.
• The firm intends to go international, targeting housing shortages in the UK, Canada, and Australia where local banking systems cannot meet demand for residential credit and renovation loans.
• Mullen anticipates a new era of unprecedented labor productivity driven by AI adoption, which he believes will boost GDP per person and offset concerns regarding federal debt.
• The firm will continue to roll up fragmented asset classes into investable global institutions, focusing on multi-family and single-family assets globally.

Leadership & Organizational Philosophy

• Mullen identifies his core investment strength as "long-arc pattern recognition" regarding regulatory and economic trends rather than short-term market timing.
• He distinguishes between "optimism" (a critical cultural driver) and "pessimism" (a risk management tool), noting Bear Stearns failed partly due to excessive pessimism.
• Mullen advocates for high work ethic, optimism, and growth-oriented missions to maintain employee engagement, contrasting this with "working hard to go sideways."
• He prioritizes work-life balance, negotiating a 2-week rotation with Goldman Sachs CEO Lloyd Blankfein to ensure he was home every night for his daughters.

Personal Insights & Interests

• Mullen was instrumental in establishing the High Line public park in New York City, eventually fully sponsoring its art program after initially sponsoring a garbage collection project.
• He maintains a contemporary art collection and reads extensively on AI and future productivity trends to inform his investment strategy.
• Mullen credits his father's rule that children must attend college and a colleague's advice not to doubt his "pattern recognition" skills as pivotal life lessons.
• Despite a dream in his 40s to retire to St. Barths, Mullen finds greater enjoyment at 66 working 60 hours a week in the real estate sector.