5-star ADU Construction Service for Riverside County Homes
Turn your extra house space into a beautiful, functional home
Why Riverside homeowners choose ADUs
Whether you’re dreaming of hosting aging parents in comfort, creating a private space for adult children, or generating steady rental income, an ADU transforms those dreams into reality. These aren’t just extra rooms – they’re complete, independent living spaces that add serious value to your property while giving you the flexibility you’ve been wanting.
The numbers speak for themselves: A well-designed ADU can increase your property value by 20-30% while generating $1,500-$3,000+ in monthly rental income. But beyond the financial benefits, ADUs give you options.
Which ADU type fits your property specs?
Detached ADUs
Size Range: Up to 1,200 square feet.
Best For: Maximum rental income potential and complete privacy.
Property Requirements: Adequate backyard space with 4-foot setbacks from property lines
These standalone units offer the highest rental rates because they provide complete independence. Perfect for properties with larger lots where you want to maximize both living space and rental income without any shared walls or utilities.
Attached ADUs
Size Range: Up to 1,200 square feet or 50% of main dwelling.
Best For: Multi-generational living and cost-effective expansion.
Property Requirements: Existing home with available wall space for attachment
Share one wall with your main home while maintaining separate entrances and utilities. These units cost less to build than detached options and work perfectly when family members want proximity but independence.
Detached Garage Conversions
Size Range: Limited by existing garage footprint, expandable up to regulations
Best For: Quick conversion with existing structure foundation
Property Requirements: Standalone garage in good structural condition
Transform your detached garage into a complete living space. Most cost-effective option since you're working with existing walls and foundation. Perfect for properties where the garage sits separately from the main house.
Attached Garage Conversions
Size Range: Determined by garage dimensions, can often expand outward.
Best For: Seamless integration with main house utilities.
Property Requirements: Attached garage with adequate ceiling height (minimum 7 feet)
Convert your attached garage while maintaining easy utility connections to your main home. These conversions often cost less than new construction and work great for properties with limited yard space.
Interior Conversions (Junior ADUs)
Size Range: Maximum 500 square feet within existing home footprint.
Best For: Minimal construction impact and budget-conscious additions.
Property Requirements: Basement, attic, or large room suitable for conversion
Create a complete living unit within your existing home structure. These projects require owner occupancy but offer the least expensive path to adding rental income or family housing to your property.
Attached-to-Garage ADUs
Size Range: Up to 1,200 square feet as new construction attached to the garage.
Best For: Properties with garages that need additional living space expansion.
Property Requirements: Existing garage with space for adjacent new construction. Build a new ADU that shares a wall with your existing garage. This option preserves your garage parking while adding substantial living space. Works well when you need more square footage than garage conversion allows.
The Manos ADU Advantage
How we make ADU construction simple
- We assess your property during a free consultation to determine the best ADU type for your space and goals.
- Our design team creates custom plans that maximize your square footage while meeting all local regulations.
- We handle all permitting and regulatory approvals using our established relationships with local officials.
- Our construction team builds your ADU with regular progress updates and quality checkpoints throughout the process.
- We conduct a final walkthrough to ensure everything meets your taste before we sign out.
Ready to transform your Riverside property?
Your ADU project deserves experts who understand both the technical requirements and the lifestyle benefits you’re seeking. Whether you’re planning for family, income, or future flexibility, we’ll help you create a space that exceeds your expectations.
During your consultation, we’ll assess your property, discuss your vision, and provide a clear roadmap for bringing your ADU dreams to life
Your ADU questions answered
Most projects are completed in 6-9 months from design to move-in, including permitting. Our streamlined process and experienced team often deliver faster than industry averages.
ADU construction typically ranges from $150,000-$400,000 depending on size, finishes, and complexity. We provide detailed estimates early in the process so you can make informed decisions.
Absolutely. Well-designed Riverside County ADUs typically add 20-30% to property values while generating significant rental income potential. Many homeowners see full return on investment within 5-7 years.
Yes, but we handle everything. ADU permitting can be complex, but our team manages all regulatory requirements and works directly with local officials to ensure smooth approvals.
Yes, ADUs are designed as independent living units that can be rented out separately from your main home. Depending on the side of Riverside County your home is, you can talk to city officials, to help you understand rental requirements in your area.
ADUs require their own kitchen, bathroom, and living space with proper utilities. These can be shared connections with your main house or completely separate systems depending on your property setup and preferences.
Most areas require 4-foot setbacks from side and rear property lines for detached ADUs. Our site assessment determines the optimal placement that maximizes your space while meeting all local requirements.