Expand Your Home With Custom ADUs & Home Additions in San Diego

Ritz Design Build creates functional, beautiful living spaces that add value, flexibility, and comfort to your property. Serving San Diego homeowners, we design and build custom accessory dwelling units (ADUs) and home additions tailored to your needs, budget, and lifestyle while ensuring compliance with local building requirements.

Our services include:

• Detached and attached ADUs

• Garage conversions

• Guest houses and casitas

• Custom home additions

• Second-story additions

• Primary suite expansions

• Kitchen and living space expansions

• ADU design and construction

• Permit coordination and approvals

• Complete design-build services

• Turnkey construction

Whether you're creating rental income, making room for a growing family, or adding private guest accommodations, Ritz Design Build can help bring your vision to life.​

Create More Space Without Leaving the Home You Love

Adding square footage is one of the best ways to improve your home's functionality and long-term value. Ritz Design Build helps homeowners throughout San Diego navigate every stage of the process, from initial planning and 3D design to permits, construction, and final occupancy.

Our approach helps you:

• Maximize your property's potential

• Increase your home's value

• Create flexible living arrangements

• Generate potential rental income

• Improve comfort and functionality

• Meet local building and zoning requirements

• Streamline ADU permits and approvals

• Minimize construction delays

• Enjoy a seamless design-build experience

• With a focus on quality craftsmanship

Homeowners choose Ritz for: 

Full-service ADU design and construction

• Custom 3D designs before construction

• Complete building plans and permit coordination

• Licensed general contracting

• Personalized project management

• Quality materials and craftsmanship

• On-time, on-budget construction

• Clear communication throughout the process

• Solutions tailored to your property and budget

Our team is committed to delivering exceptional results while respecting your home, your time, and your investment. From concept to completion, Ritz Design Build makes expanding your San Diego home easier.