Prefab ADU in San Diego
Want your ADU built faster without sacrificing quality? Let’s talk about what prefab ADUs can do for your San Diego property.

Why Smart San Diego Families Are Choosing Prefab ADUs
Let’s clear up some misconceptions right away. Modern prefab ADUs aren’t mobile homes or cheap trailers. They’re high-quality buildings manufactured in controlled factory environments with better quality control than most site-built construction.
Here’s what prefab gives you that traditional construction can’t:
Faster timeline – While stick-built ADUs take 4-6 months, prefab ADUs are generating rental income in 2-3 months.
Predictable costs – No weather delays, no change orders, no surprise expenses. The price we quote is the price you pay.
Better quality control – Factory construction means consistent quality, precise measurements, and no weather damage during construction.
Less disruption – Your backyard is a construction zone for weeks, not months. Your family life stays normal.
Proven designs – Every prefab model has been built dozens of times before. All the bugs are worked out.
But here’s the most important part: a quality prefab ADU rents for exactly the same amount as a stick-built ADU. Your tenants don’t care how it was built – they care about how it looks and functions.
- Prefab ADU selection and customization – We work with the best manufacturers, not the cheapest
- Site preparation and foundation work – Every prefab ADU needs a perfect foundation
- Crane delivery and placement – Professional installation with proper equipment
- Utility connections and hookups – Electrical, plumbing, gas, internet – all connected properly
- Permit applications and inspections – City approvals for your specific prefab model
- Interior finishing and customization – Make your prefab ADU feel like home
- Exterior landscaping integration – Blend your new ADU seamlessly into your yard
What Makes Our Prefab ADU Service Different
Anyone can order a prefab building. Not everyone can install it correctly. That’s where years of San Diego construction experience really matters.
Proper foundation work – Prefab ADUs need perfectly level, precisely measured foundations. Get this wrong and nothing else works right.
Professional crane installation – We’ve done enough prefab installations to know exactly how to position your ADU for optimal placement.
Code-compliant utility connections – Factory-built doesn’t mean the utilities connect themselves. Everything must meet San Diego’s electrical and plumbing codes.
Seamless permit process – We know which prefab models the city approves quickly and which ones cause delays.
Here’s what you get with Classic Home Contractors:
- Upfront pricing with no surprises – Site prep, delivery, installation, utilities, permits – all included
- Direct manufacturer relationships – We work with proven prefab companies, not random online sellers
- Full insurance and licensing – Your prefab installation is fully covered and city-approved
- Post-installation support – We’re here to help long after your ADU is generating income

Ready to Fast-Track Your ADU Income?
Curious about whether prefab is right for your property? We’ll come out and give you honest advice about your options – prefab, stick-built, or hybrid solutions.
Contact Us today to explore your prefab ADU options. Let’s get your rental income started months sooner than you thought possible – without sacrificing quality or cutting corners.
Your Prefab ADU Questions (With Honest Answers)
- Are prefab ADUs really as good as stick-built? In many ways, they’re better. Factory construction means better quality control, more precise measurements, and materials that never get rained on during construction. The only difference is speed and cost – both favor prefab.
- What about customization options? Most prefab manufacturers offer extensive customization – different exterior finishes, interior layouts, kitchen configurations, and flooring options. You can still get exactly what you want, just faster.
- Do prefab ADUs increase property value as much? Absolutely. Appraisers look at size, quality, and rental potential – not construction method. A well-designed prefab ADU adds just as much value as stick-built.
- What happens if something goes wrong with my prefab ADU? That’s why you work with experienced installers. We handle any issues that come up, and prefab manufacturers typically offer better warranties than site-built construction.
The Smart Economics of Prefab ADUs
Let’s talk numbers, because that’s what really matters for your investment.
Traditional stick-built ADU:
- Construction time: 4-6 months
- Lost rental income during construction: $12,000-$18,000
- Weather delays and change orders: Common
- Final cost overruns: 15-25% typical
Quality prefab ADU:
- Construction time: 2-3 months
- Lost rental income: $6,000-$9,000
- Weather delays: Minimal (factory construction)
- Final cost overruns: Rare with experienced installers
Bottom line: Prefab ADUs typically start generating rental income $6,000-$12,000 sooner than stick-built. Over a 10-year period, that earlier income more than pays for the entire project.
The Prefab Advantage: Speed Without Compromise
Here’s what most people don’t understand about prefab construction: it’s not about cutting corners – it’s about eliminating inefficiencies.
Factory construction means no weather delays, no material deliveries sitting in the rain, no waiting for different trades to coordinate their schedules. Everything happens in a controlled environment with predictable results.
Your prefab ADU gets the same city inspections, meets the same building codes, and qualifies for the same financing as stick-built construction. The only difference is speed and consistency.
REAL STORIES FROM SATISFIED CUSTOMERS



Family-owned and proudly serving san diego
With our expertise, backed by decades of experience in home remodel and project management, you’re never alone on this journey.
We understand the details of the field and the importance of effective communication, and the importance of respecting your budget and timeline.
Together, we’ll turn your dream home into reality with less stress and more joy.
Our goal is to ensure your journey is not only successful but also an exciting and fulfilling experience every step of the way.


We believe every home has a story and a vision waiting to be realized. Our motto, “Dreams Come True” represents our commitment to turning your ideas into reality.
We are here to help you create the home you’ve always dreamed of.
Contact Us
Reach out today to discuss your ideas and how we can assist you in creating the home of your dreams.