JSN Construction

JSN Construction is a family-owned, licensed, bonded, and insured general contractor based in Los Angeles, California, serving homeowners throughout the Greater Los Angeles area since 2016. The company specializes in Accessory Dwelling Units (ADUs), custom homes, home additions, kitchen and bathroom remodeling, garage conversions, roofing, tenant improvements, and commercial construction. With a reputation for quality craftsmanship, transparent communication, and reliable project management, JSN Construction delivers residential and commercial projects from concept through completion.

Operating under a design-build model, JSN Construction manages every phase of an ADU project, including feasibility studies, architectural design, engineering, permit acquisition, construction, inspections, and certificate of occupancy. Their experienced team coordinates every trade under one roof, ensuring projects are completed efficiently, comply with California building codes, and maximize both property value and functionality. The company is particularly experienced with Los Angeles ADU regulations and the LADBS permitting process.

Services

• Accessory Dwelling Units (ADUs)
• Detached ADUs
• Attached ADUs
• Junior ADUs (JADUs)
• Garage Conversion ADUs
• Basement ADUs
• Above-Garage ADUs
• ADU Architectural Design
• ADU Plans & Permits
• Feasibility Studies
• Custom Home Construction
• Home Additions
• Kitchen Remodeling
• Bathroom Remodeling
• Whole-Home Remodeling
• Roofing
• Masonry
• Retaining Walls
• Patio Construction
• Commercial Construction
• Tenant Improvements
• Multi-Family Construction
• Design-Build Services
• Project Management

Why Choose JSN Construction?

• Family-owned Los Angeles contractor
• Licensed, bonded, and fully insured (CSLB #1020134)
• Complete in-house design-build services
• Specialists in custom ADUs and garage conversions
• Handles design, permits, engineering, and construction
• Extensive experience with LADBS permitting and California ADU regulations
• Top 2% of California licensed contractors according to BuildZoom
• Dedicated project management from concept to completion
• High-quality workmanship with premium materials
• Free consultations and project estimates