Guides & insights
ADU Articles
ADU
How to research your San Diego property before building an ADU
How to research your property before building an ADU: find your sewer lateral, parcel map, fire zone, and building records with official San Diego sources.
By The Nucave Team · September 15, 2026
ADU
How long does it take to build an ADU in San Diego?
A San Diego builder explains how long it takes to build an ADU, phase by phase from design and permits to keys, and how to keep your project on schedule.
By The Nucave Team · September 11, 2026
ADU
Garage Conversion vs. Detached ADU: How to Choose
A San Diego builder compares garage conversions ($150k to $230k) with detached ADUs: cost, setbacks, the 5-foot fire-rating rule, and how to pick the right path for your lot.
By The Nucave Team · August 30, 2026
ADU
How Much Does an ADU Cost in San Diego? (2026 Numbers)
Real 2026 ADU costs from a San Diego builder: $385 to $475 per sq ft for detached units, $150k to $230k garage conversions, plus the property-specific costs that move your price.
By The Nucave Team · August 19, 2026
ADU
Building an ADU: Financing Options in Retirement
ADU financing in retirement, HELOC or 401(k) withdrawal: weigh taxes, monthly payments, and lost investment growth using a $100,000 ADU example.
By Ryan Bittner · October 1, 2024
ADU
The Future of Housing: How ADUs Are Changing the Landscape
How ADUs are changing housing: more supply without altering neighborhoods, affordable rentals, multigenerational living, and sustainable infill growth.
By Ryan Bittner · March 11, 2024
ADU
Understanding ADUs: A Comprehensive Guide
A beginner's guide to accessory dwelling units: the three ADU types, what they are used for, and what to plan before building one in San Diego County.
By Ryan Bittner · February 17, 2024
ADU
Financing Your ADU Project: Options and Advice
ADU financing options: home equity loans, personal loans, HELOCs, construction loans, and government grants, plus tips for picking one that fits you.
By Ryan Bittner · January 18, 2024
ADU
The Benefits of Site-Built ADUs Over Prefab ADUs
Site-built ADU vs prefab ADU: why building on site means more design freedom, a better match to your home, tighter quality control, and easier permits.
By Ryan Bittner · August 23, 2023
ADU
How Can an ADU Make You Money?
How an ADU can make you money: renting to tenants, short-term guests through Airbnb, a home office, or a guest suite, and the factors that shape income.
By Ryan Bittner · January 4, 2023
ADU
Understanding the Different ADU Codes and Costs
ADU codes and costs in San Diego: permits at $1,000 to $5,000, construction at $300 to $450 per square foot, and four steps from research to building.
By Ryan Bittner · November 9, 2022
ADU
Granite Vs Quartz
Granite vs quartz countertops compared on durability, stains, heat, sealing, and cost: granite runs $2,000 to $4,500 installed, quartz $3,000 to $7,500.
By Ryan Bittner · June 24, 2022
ADU
Garage Conversion
Garage conversion basics: permits, parking rules, plumbing and electrical needs, realistic costs of $100,000 to $150,000, and ways to stay on budget.
By Ryan Bittner · June 2, 2020
ADU
2020 ADU Laws Are In Effect!
California ADU laws for 2020 drop lot size minimums, size limits, utility fees, and owner-occupancy rules. A break for homeowners adding rental income.
By Ryan Bittner · February 3, 2020
ADU
Don’t Build an ADU Without Reading This: Essential HVAC Tips Revealed!
HVAC for an ADU in San Diego County: sizing, efficient mini-splits, ventilation, noise limits, and the codes and inspections your system must pass.
By Ryan Bittner
ADU
Expert Sewer Connections for ADUs in North County San Diego
ADU sewer connection in North County San Diego: Nucave is licensed and approved for public right of way work, handling permits, trenching, and inspection.
By Ryan Bittner
ADU
Your Ultimate Guide to Building an ADU in San Diego County: DIY or Hire a Pro?
Building an ADU in San Diego County: permit steps from zoning check to final approval, a 30 to 60 day review, and whether to DIY or hire a contractor.
By Ryan Bittner