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