Projects Category: Multifamily

Website Portfolio Description

Rolen Construction successfully completed the development of two new Accessory Dwelling Units (ADUs) within an existing multifamily residential property located on Magnolia Boulevard in Sherman Oaks, California. The project transformed underutilized parking structures into modern residential units, creating additional housing opportunities while maximizing long-term property value and performance.

Designed as a strategic urban infill development, the project required careful planning, coordination, and construction management to integrate the new residences within an occupied multifamily environment. The completed ADUs provide efficient living spaces that complement the existing community while contributing additional housing inventory in a highly desirable Los Angeles neighborhood.

Through adaptive reuse, efficient site utilization, and quality construction execution, Rolen Construction successfully delivered a multifamily property enhancement project that demonstrates the value of innovative housing solutions and thoughtful residential development.

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Sherman Oaks ADU Builder | 14707–14715 W Magnolia Blvd ADU Development

Completed in June 2024, the 14707–14715 W Magnolia Boulevard ADU Development transformed existing carport and garage structures into two new residential ADUs within an established multifamily property in Sherman Oaks, California.

The project increased housing capacity while maximizing underutilized site areas through strategic urban infill development and adaptive reuse construction. By converting existing parking structures into modern residential spaces, the development improved property value, enhanced asset performance, and created new long-term housing opportunities.

Rolen Construction specializes in ADU construction, multifamily property improvements, adaptive reuse projects, garage conversions, and urban infill development throughout Southern California.

Project Facts

• Project Name: 14707–14715 W Magnolia Blvd ADU Development
• Location: Sherman Oaks, California
• Project Type: Multifamily ADU Development
• General Contractor: Rolen Construction
• Owner: Alex Shlafman
• Construction Start: October 2023
• Completion Date: June 2024
• Status: Completed
• Existing Multifamily Residential Property
• Two New ADUs Constructed
• ADU #14707: Approximately 378 SF
• ADU #14715: Approximately 639 SF
• Adaptive Reuse of Existing Parking Structures
• Urban Infill Residential Development

Construction Highlights

• Conversion of existing parking structures into residential ADUs
• Multifamily property enhancement
• Urban infill housing development
• Adaptive reuse construction
• Efficient site utilization
• Increased residential density
• Property value enhancement
• Modern residential layouts and finishes
• Utility infrastructure upgrades
• Electrical service modernization
• Fast-track project delivery

Project Update

Project Status: Completed

The 14707–14715 W Magnolia Boulevard ADU Development was successfully completed in June 2024. The project transformed underutilized parking structures into two fully functional residential units, creating additional housing opportunities while maximizing the development potential of the property.

Working within an existing multifamily community required detailed coordination, careful scheduling, and efficient management of site logistics. The completed ADUs integrate seamlessly with the existing property and provide long-term value through increased rental capacity and enhanced property performance.

Key Milestones Achieved

• Design and permitting completed
• Site preparation completed
• Structural modifications completed
• Utility infrastructure upgrades completed
• Framing completed
• Roofing completed
• Mechanical, electrical, and plumbing installations completed
• Interior finishes completed
• Final inspections completed
• Project turnover completed

Project Outcome
The project successfully delivered two new residential units through adaptive reuse construction, creating additional housing opportunities while improving overall property value and maximizing site efficiency.

Project Duration
October 2023 – June 2024

Website Portfolio Description

Rolen Construction successfully completed the development of three Accessory Dwelling Units (ADUs) within an existing multifamily residential property in Long Beach, California. Designed to increase housing capacity while maximizing the property’s development potential, the project transformed underutilized site areas into modern residential units that enhance both livability and long-term asset value.

The development includes three residential ADUs delivered through a combination of adaptive reuse and new construction, creating additional housing opportunities while maximizing the property’s development potential. Two of the units feature two-bedroom, two-bathroom layouts, while the third unit provides a two-bedroom, one-bathroom configuration, creating a diverse housing mix within the property.

Delivered through strategic planning, coordinated construction management, and efficient execution, the project demonstrates Rolen Construction’s expertise in multifamily property improvements, urban infill housing, and ADU development throughout Southern California.

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Long Beach ADU Builder | 4200 E 10th Street & 930 Roswell ADU Development

Completed in October 2025, the 4200 E 10th Street & 930 Roswell ADU Development expanded the residential capacity of an existing multifamily property through the delivery of three new housing units. Utilizing a combination of adaptive reuse and new construction, the project maximized site efficiency while creating valuable new housing opportunities in Long Beach, California.

The development includes three thoughtfully designed residential units, offering a mix of two-bedroom floor plans that support modern living while enhancing overall property performance. Through effective planning, utility coordination, and quality construction management, Rolen Construction delivered a successful multifamily housing expansion that increased density and long-term property value.

Rolen Construction specializes in ADU development, multifamily property improvements, urban infill housing, adaptive reuse projects, and residential construction throughout Southern California.

Project Facts

• Project Name: 4200 E 10th Street & 930 Roswell ADU Development
• Location: Long Beach, California
• Project Type: Multifamily ADU Development
• General Contractor: Rolen Construction
• Construction Start: August 2024
• Completion Date: October 2025
• Status: Completed
• Three ADUs Delivered
• Two Units: 2 Bedrooms / 2 Bathrooms
• One Unit: 2 Bedrooms / 1 Bathroom
• Combination of Adaptive Reuse and New Construction
• Urban Infill Housing Development

Construction Highlights

• Multifamily property enhancement
• ADU development
• Combination of adaptive reuse and new construction
• Urban infill housing development
• Increased residential density
• Property value optimization
• Utility infrastructure improvements
• Site redevelopment
• Modern residential layouts
• Fast-track project delivery
• Long-term asset enhancement

Project Update

Project Status: Completed

The 4200 E 10th Street & 930 Roswell ADU Development was successfully completed in October 2025. The project expanded the residential capacity of an existing multifamily property through the delivery of three new housing units utilizing a combination of adaptive reuse and new construction strategies.

The completed development provides modern housing accommodations while improving site efficiency, increasing residential density, and enhancing the long-term value of the property. Through careful planning, utility coordination, and efficient construction management, the project was delivered as a high-quality multifamily housing expansion within an established urban neighborhood.

Key Milestones Achieved

• Design and permitting completed
• Site preparation completed
• Structural construction completed
• Utility infrastructure improvements completed
• Framing completed
• Roofing completed
• Mechanical, electrical, and plumbing installations completed
• Interior finishes completed
• Final inspections completed
• Project turnover completed

Project Outcome
The project successfully delivered three new residential units, increasing housing capacity while maximizing property value and site efficiency.

Project Duration
August 2024 – October 2025

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

Website Portfolio Description

Rolen Construction is currently completing the transformation of an existing garage within a six-unit multifamily property into a new Accessory Dwelling Unit (ADU) in Santa Monica, California. This adaptive reuse project is designed to increase housing capacity while maximizing the value of an existing multifamily asset through efficient use of underutilized space.

The new residential unit has been carefully integrated into the existing property and incorporates modern building systems, upgraded infrastructure, and high-quality residential finishes. By creating additional housing without expanding the building footprint, the project demonstrates a practical and sustainable approach to urban infill development.

Despite inspection-related challenges during construction, the project has continued to move forward successfully and remains on track toward completion. Once finished, the development will provide additional housing opportunities while enhancing the long-term performance and value of the property.

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Santa Monica ADU Builder | 1417 17th Street Garage Conversion ADU

The 1417 17th Street ADU Development is a multifamily housing improvement project currently under construction in Santa Monica, California. The project converts an existing garage structure into a new residential ADU, creating additional housing inventory through adaptive reuse and strategic urban infill development.

Construction began in December 2025 and is currently in the drywall, taping, and mudding phase. The project includes structural upgrades, utility improvements, modern building systems, and high-quality interior finishes designed for long-term residential occupancy.

Rolen Construction specializes in ADU construction, garage conversions, multifamily property improvements, adaptive reuse developments, and urban infill housing projects throughout Southern California.

Project Facts

• Project Name: 1417 17th Street ADU Development
• Location: Santa Monica, California
• Project Type: Multifamily ADU Development
• General Contractor: Rolen Construction
• Construction Start: December 2025
• Estimated Completion: August 2026
• Current Status: Drywall, Taping & Mudding Phase
• Delivery Method: Garage Conversion / Adaptive Reuse
• Existing Multifamily Property: 6 Units
• New Residential Unit Added Through ADU Development
• Urban Infill Housing Project

Construction Highlights

• Conversion of an existing garage into a new residential ADU
• Adaptive reuse of existing building structures
• Multifamily property enhancement
• Structural framing upgrades
• New electrical, plumbing, and mechanical systems
• Life-safety and code compliance improvements
• Increased housing density without expanding the building footprint
• Utility infrastructure upgrades
• Urban infill housing development
• Long-term property value enhancement

Project Challenges & Progress

During construction, the project experienced a significant delay related to the inspection process. Following framing inspections, the project team proceeded with drywall installation based on field direction indicating that the work was approved. Subsequent review required additional framing verification after drywall had already been installed.

To facilitate reinspection, portions of the completed drywall were carefully removed, allowing inspectors access to framing components for review and approval. The corrective work has been completed, and final approval is anticipated shortly, allowing the project to continue progressing toward completion.

The project is currently in the drywall, taping, and mudding phase and is expected to transition into finish work upon receipt of final inspection approvals.

Project Update

Project Status: Drywall, Taping & Mudding

Major structural work, framing, roofing, utility rough-ins, and inspections have been completed. The project team is currently focused on drywall finishing activities while coordinating final inspection approvals.

Key Milestones Achieved:

• Design and permitting completed
• Demolition completed
• Structural framing completed
• Utility rough-ins completed
• Roofing completed
• Insulation completed
• Initial drywall installation completed
• Framing reinspection process completed

Current Activities:

• Drywall finishing
• Taping and mudding
• Inspection closeout coordination
• Preparation for interior finish installations

Expected Completion:
August 2026

Project Duration:
December 2025 – August 2026

Website Portfolio Description

Rolen Construction is currently completing the transformation of existing garage spaces into two new Accessory Dwelling Units (ADUs) at a multifamily residential property located at 1135 E 4th Street in Long Beach, California.

The project consists of the adaptive reuse of underutilized garage structures to create two modern residential units within an established apartment community. By converting existing parking areas into housing, the development increases residential capacity while maximizing the value and efficiency of the property without expanding the building footprint.

The project required extensive coordination with local agencies, design professionals, and inspectors to satisfy evolving code requirements throughout construction. As work progressed, additional electrical and plumbing corrections requested by the City resulted in schedule adjustments that extended the inspection and closeout process.

Currently in final inspection phase, the project represents another successful example of urban infill housing development and adaptive reuse construction, providing additional housing opportunities in one of Long Beach’s established residential neighborhoods.

Project Facts

• Location: Long Beach, California
• Construction Start: March 2024
• Status: Final Inspections
• Existing Garage Conversion
• Two New ADUs
• ADU 1: Approximately 352 SF
• ADU 2: Approximately 361 SF
• Existing Property Expanded from 11 to 13 Residential Units

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