Detached Two-Story ADU Project – Irving Blvd, Los Angeles 90004

This project represents a modern, space-efficient solution in the heart of Los Angeles. Designed and approved in 2024, this two-story detached ADU replaced an aging garage and introduced a fully code-compliant structure into a multifamily zoned lot near Hancock Park.

Project Overview

• Location: Near Irving Blvd, Los Angeles, CA 90004
• Lot Zoning: R3-1 (Multi-family residential)
• Structure Type: Two detached ADUs — ground floor + second floor
• Height: 18 feet (within 45 ft allowable height)
• Lot Size: 4,590 sq ft
• Total ADU Area: 3,321 sq ft (under 7,776 sq ft FAR limit)
• Permit Status: Approved by City of Los Angeles in 2024
• Sprinklers: Not required under code
• Demolition: Existing garage removed
• Design Team: I ARC Designers + S&Z Engineering

Planning Notes

This project highlights Golden ADU’s ability to transform a compact urban lot into a highly efficient two-unit ADU solution. By utilizing a clean flat-roof modern design, we maximized the allowable floor area and height within R3 zoning requirements.

The design includes detailed elevation views, grading quantities, and complete structural documentation to comply with the 2019 California Building Code, Green Code, and local municipal guidelines. A smooth permit process was executed with final approval in October 2024.