For Justin Diem, a strong work ethic and penchant for over-achieving are practically second nature.
Justin Diem’s work ethic began early. “I was outfitting fishing and ski gear at 12, became a ski technician at 14, picked up a second job as a line cook at 15, and caddied at Montreux Golf Club during college while interning in my first finance role.” These formative experiences instilled a strong foundation of discipline, adaptability, and client service.
Justin began his professional career as a mortgage loan officer. “After navigating years of banking compliance, I developed a desire to transition into the tangible side of real estate, and the complexities of the commercial market immediately intrigued me.”
In 2018, Justin joined Radius, gaining exposure to the Santa Barbara region while contributing to more than $850 million in commercial sale and lease transactions alongside Bob Tuler, Paul Gamberdella, and Gene Deering. This experience provided him with broad market insight across all asset classes and a nuanced understanding of the regional economy.
After seven years with the team, Justin leveraged his expertise in property sales and leasing, valuation and investment analysis, contract negotiation, and marketing to step into a solo role as Vice President at Radius.
Now in his ninth year with the firm, Justin has developed a diverse and well-rounded skill set that delivers meaningful value to his clients, colleagues, and the community. His consistent performance and market knowledge have earned him a strong reputation within the Santa Barbara commercial real estate market.
Outside of work, Justin finds solace through backcountry skiing and hiking with his dogs in his hometown of June Lake, as well as playing golf in Santa Barbara. “These pursuits provide both relaxation and humbling moments that help reset and maintain balance in my career.”
Education
Bachelor of Science degrees in Finance, Economics | University of Nevada, Reno
Memberships & Associations
- Radius Group Economic Forecast, Speaker
Former Memberships:
- Board of Directors, Downtown Santa Barbara
- Children’s Cancer Association, Chemo-pal Mentor
- YPN Committee, Santa Barbara Association of Realtors
An avid adventurer and outdoorsman, Justin grew up skiing and backpacking in his hometown of June Lake. “But my go-to is golf. The inconsistency of the game and the focus needed really helps me keep clear-minded and balanced.”
Sales
- 250–270 Storke Rd. Goleta: Retail/Office — $10.5 Million
- 1200 Coast Village Rd. Montecito: Development Site — $5.6 Million
- Montecito Vacant Land: Development Site — $6.85 Million
- 1025 Cindy Ln. Carpinteria: Industrial — $4.495 Million
- 109 Bath St. Santa Barbara (Franciscan Inn): Hotel — $22 Million
- 22 Castillo St. Santa Barbara (Castillo Inn): Hotel — $9.25 Million
- 301 E. Yanonali St. Santa Barbara: Development Site — $9.375 Million
- 117, 133 & 135 E. Ortega St. Santa Barbara: Development Site — $8.55 Million
- 1913–1921 State St. Santa Barbara: Medical Office — $9.275 Million
- 800 Miramonte Dr. Santa Barbara: Class A Office — $14 Million
- 624 E. Haley St. Santa Barbara: Industrial — $1.65 Million
- 1315 State State St. Santa Barbara: Retail — $2.7 Million
- 921 State St. Santa Barbara: Retail — $1.75 Million
- 1013 State St. Santa Barbara: Retail — $1.29 Million
- 16 W. Mission Santa Barbara: 23 Apartments — $11.825 Million
- 1731 & 1735 Laurel Ave. Solvang: 6 Apartments — $5.25 Million
Leasing
- 3845 State St. Santa Barbara: 70,000 SF Retail (Landlord Rep)
- 191 N. Fairview Ave. Goleta: 25,348 SF Retail (Tenant Rep)
- 25 E. Mason St. Santa Barbara: 14,053 SF Creative Office (Tenant Rep)
- 26 Castilian Dr. Goleta: 81,099 SF Multitenant Office/Industrial Building (Landlord Rep)
- 125 Cremona Dr. Goleta: 9,921 SF Tech Office (Tenant Rep)
- 333 E. Haley St. Santa Barbara: 6,000 SF Creative Office (Tenant Rep)
- 82 Aero Camino Goleta: 5,239 SF Industrial R&D (Tenant Rep)
- 621 Chapala St. Santa Barbara: 6,376 SF Office (Landlord Rep)
- 10 E. Yanonali St. Santa Barbara: 19,906 SF Multitenant Office (Landlord Rep)
- 224 Helena Ave. Santa Barbara: 1,933 SF Restaurant (Tenant Rep)
- 1110 Coast Village Rd. Montecito: 4,173 SF Office/Retail (Landlord Rep)
- 1298 Coast Village Rd. Montecito: 2,703 SF Medical Retail (Tenant Rep)
- 1309 State St. Santa Barbara: Retail 2,360 SF Retail (Tenant Rep)
- 1021 State St. Santa Barbara: Retail 2,500 SF Retail (Landlord & Tenant)