RC Thornton
Partner · Construction & Development
A distinguished luxury developer who has built some of the Hollywood Hills’ most impressive homes, and an early participant in SB 684 development.
Roy Carson “RC” Thornton has completed more than $100 million in developments over his career. Known for exceptional craftsmanship and visionary design, he has built notable homes in the Hollywood Hills, including 7115 Macapa, 7123 Macapa, 7932 Woodrow Wilson and 8070 Laurelmont / Oceanus.
More recently, RC has expanded into multifamily across Los Angeles, applying his luxury-home experience to cost-effective new-construction rental housing. Through his agency practice he has also sold more than $350,000,000 in real estate.
RC is Co-CEO of Hollywood Estates and, with Oliver Thornton, leads Thornton Development Group, the development firm through which they acquire, entitle, design and build luxury single-family and small-lot residential projects in Los Angeles. Its model is comparable to larger infill home builders, with a more luxurious end product, higher-quality finishes, and the ability to build on hillside sites as well as flat infill lots. Thornton Development Group has completed or managed approximately 21 projects since 2005.
RC is a California-licensed general contractor, providing general contracting through Thornton Design Group Inc. (CSLB License No. 1159219). He oversees construction on the firm’s projects, including budgeting, scheduling, subcontractor management and quality control.
He has been an early participant in SB 684 development in the Los Angeles area. Through Thornton Holdings LLC, which he owns and manages, he is developing 1949 17th Street in Santa Monica (“SAMO IX”), a nine-home fee-simple SB 684 subdivision with an approved tentative tract map, for which he obtained a construction loan of approximately $7,100,000 in May 2026, and he serves as its general contractor. Thornton Holdings LLC also owns a stabilized 14-unit multifamily property in Los Angeles. RC has personally guaranteed the construction financing on the principals’ projects, including The Culver VI and SAMO IX.
Leads at Assemble Capital
- Construction, design and delivery
- Budgets, schedules and subcontractors
- Site and construction risk on every project
Background
- Co-CEO, Hollywood Estates
- Co-leads Thornton Development Group
- Owner and manager, Thornton Holdings LLC
- Outside work: family, great food, travel and the latest in real estate design
Thornton Development Group · Under Construction
- Pyramid MCM
- Mulholland Residence
- Kentwood Farmhouse
- VC Modern
- VC IV
- Tree Haus
Thornton Development Group · In Entitlement
- SAMO IX
- SAMO IV
- The Culver VI
- Harter V
- The Helms VI
- Verdugo IV
- Gardner II
Pipeline as of October 2026; status subject to change. SAMO IV, The Culver VI, Harter V and The Helms VI are Assemble Capital projects developed by Thornton Development Group. The other projects belong to Thornton Development Group, Thornton Holdings LLC or other affiliates, which are separate from Assemble Capital, and are not Assemble Capital offerings.