Website Portfolio Description
Rolen Construction successfully completed the Sequoia ADU Development at 4122 E Sequoia Street in Los Angeles, California. The project transformed an existing multifamily residential property through the construction of three new Accessory Dwelling Units (ADUs), including one attached ADU created through a garage conversion and two newly constructed detached ADUs.
The development maximized the property’s housing potential through a combination of adaptive reuse and new construction, increasing residential density while maintaining the character of the existing community. The project included site improvements, utility infrastructure upgrades, structural work, life-safety enhancements, and modern residential finishes designed for long-term occupancy.
Completed in August 2025, the project demonstrates Rolen Construction’s expertise in multifamily property improvements, ADU construction, urban infill development, and housing expansion solutions.
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Los Angeles ADU Builder | 4122 E Sequoia Street Multifamily ADU Development
Completed in August 2025, the Sequoia ADU Development added three new residential units to an existing multifamily property located at 4122 E Sequoia Street in Los Angeles, California.
The project included the conversion of an existing garage into a new attached ADU and the construction of two detached ADUs with associated site and utility improvements. By utilizing both adaptive reuse and ground-up construction methods, the development increased housing capacity while enhancing the long-term value of the property.
Rolen Construction specializes in ADU construction, garage conversions, multifamily property improvements, adaptive reuse projects, and urban infill housing developments throughout Southern California.
Project Facts
- Project Name: Sequoia ADU Development
- Address: 4122 E Sequoia Street, Los Angeles, CA 90039
- Project Type: Multifamily ADU Development
- General Contractor: Rolen Construction
- Construction Start: September 2024
- Completion Date: August 2025
- Status: Completed
- Existing Multifamily Residential Property
- One Attached ADU (Garage Conversion)
- Two Detached ADUs (New Construction)
- Urban Infill Housing Development
- Adaptive Reuse and Ground-Up Construction
Construction Highlights
- Garage conversion into a new attached ADU
- Construction of two new detached ADUs
- Site development and infrastructure improvements
- Structural and foundation work
- New electrical, plumbing, and mechanical systems
- Building code and life-safety compliance upgrades
- Stormwater and site drainage improvements
- Residential density increase within an existing property
- Property value enhancement and long-term asset improvement
- High-quality residential finishes throughout
Project Update
Project Status: Completed
The Sequoia ADU Development was successfully completed in August 2025. The project expanded the housing capacity of an existing multifamily property by delivering three new residential units through a combination of garage conversion and new detached ADU construction.
Major Milestones Achieved:
- Design and permitting completed
- Site preparation completed
- Foundation and structural work completed
- Utility installations completed
- Framing completed
- Roofing and exterior finishes completed
- Mechanical, electrical, and plumbing systems completed
- Interior finishes completed
- Final inspections completed
- Project closeout and turnover completed
Project Outcome:
The completed project added three new residential units while maximizing the use of the existing property, improving overall asset performance, and contributing additional housing opportunities within an established Los Angeles neighborhood.
Project Duration:
September 2024 – August 2025