***UPDATE*** You can tear these duplexes down and rebuild them as duplexes and each unit could be about double their current size. MUST confirm with the City of Encinitas. First time on market in 27 years! Incredible investment opportunity to own TWO duplexes side by side! 931-933 Regal Rd also for sale. MLS #190030533. Huge lot, single story building with numerous opportunities. Unit 921 has been nicely updated and has a huge backyard. Unit 921 has some upgrades with a nice side/backyard.