Home 360 Construction did three different projects at my house. 1. Retaining walls, concrete work, and a large shed. 2. Guest bathroom, new flooring, repiping and sewer line replacement. 3. Master bath remodel. Excellent work in all areas. I would highly recommend this company for any of you upcoming projects, remodels and new builds.
ADU Construction in San Diego, CA
Home 360 Construction builds permitted ADUs for San Diego homeowners who want added living space or rental income.
- Adds a fully independent living unit to your existing San Diego property without purchasing new land
- Creates a potential long-term rental income stream in one of California's highest-demand housing markets
- Supports multigenerational living by giving family members a private space with a separate entry
- Increases assessed property value by adding permitted, livable square footage to your lot
- Converts underused garage or backyard space into a code-compliant, income-producing structure
- Reduces project risk through a contractor who knows San Diego city and county submittal requirements
Expert ADU Construction in San Diego, CA
Home 360 Construction handles ADU construction for San Diego homeowners from the ground up. We manage detached new builds, attached additions, and garage conversions on single-family lots across the city. Our work covers site evaluation, plan preparation, city submittal, and full construction through final inspection. San Diego's ADU rules have shifted significantly in recent years. The City now caps units per lot under its updated Bonus Program, and properties in the Coastal Overlay Zone face separate review requirements. Knowing which rules apply to your specific address before breaking ground saves time and money. We work with homeowners who want a private space for family members, a long-term rental unit, or a flex space that can serve both purposes over time. If your property is in the city or unincorporated county, we can assess what your lot allows and walk you through each step. Call Home 360 Construction to talk through your ADU project in San Diego.
What's included
- Adds a fully independent living unit to your existing San Diego property without purchasing new land
- Creates a potential long-term rental income stream in one of California's highest-demand housing markets
- Supports multigenerational living by giving family members a private space with a separate entry
- Increases assessed property value by adding permitted, livable square footage to your lot
- Converts underused garage or backyard space into a code-compliant, income-producing structure
- Reduces project risk through a contractor who knows San Diego city and county submittal requirements
More General Contractor Services
Need this service?
Get a clear roof assessment before you commit.
ADU Construction FAQ
Common questions about adu construction in San Diego, CA.
Yes, most San Diego residential lots with an existing single-family home are eligible for at least one detached ADU. The exact size and placement depend on your zone, lot dimensions, and whether your property falls inside the Coastal Overlay Zone.
We build detached new construction ADUs, attached ADUs, and garage conversions on San Diego properties. Each type has different size limits and site requirements, so we assess your lot before recommending an approach.
A detached ADU in San Diego can be up to 1,200 square feet, and an attached ADU can be up to 50% of the primary home's floor area, also capped at 1,200 square feet. ADUs up to 800 square feet are protected under California state law regardless of local lot coverage limits.
In most San Diego cases, you are not required to replace off-street parking spaces when a garage is converted or demolished to build an ADU. Exceptions apply in certain areas such as the Beach Impact Area of the Parking Impact Overlay Zone.
Yes, San Diego homeowners can rent out a permitted ADU as a long-term rental unit. State law removed owner-occupancy requirements for ADUs permitted between 2020 and 2024, and current city rules continue to allow rental use.
San Diego ADU regulations have changed multiple times in recent years, and rules differ between the City of San Diego and unincorporated county areas. A contractor familiar with local submittal processes helps avoid costly redesigns and keeps your project moving through plan check.
Still have questions?
Call us directly. Real answers, no scripts.
What San Diego County homeowners say.
Worked with us?
Leave a ReviewProudly Based in San Diego, CA
Stop by, call, or book online — we're always nearby when you need us.
Phone
(858) 315-9669Hours
- Monday 8:00 AM - 5:00 PM
- Tuesday 8:00 AM - 5:00 PM
- Wednesday 8:00 AM - 5:00 PM
- Thursday 8:00 AM - 5:00 PM
- Friday 8:00 AM - 5:00 PM
- Saturday Closed
- Sunday Closed