ADU Construction in El Cajon
Want to make your El Cajon home worth more money AND get extra space? Let’s build you an awesome ADU that does both!

Want to add a cozy guest suite or rental unit at your El Cajon home? We make it simple! Our team helps design and build ADUs—handling permits, construction, and everything in between. Plus, we’ll help you look into El Cajon’s ADU Loan Program, so you might be able to borrow funds to build with friendly repayment terms.
Check out the city’s ADU funding page to learn more about this great program. Let’s bring your extra living space dreams to life—smoothly, affordably, and with full approval!
Why Build an ADU at Your El Cajon Home?
ADUs are like magic for your home! They make your property worth more money and give you so many cool ways to use the extra space.
Here’s the exciting news: A well-built ADU can make your home worth up to 30% more! Plus, you can rent it out for extra cash every month, or give family members their own special place to live.
We handle everything from the first drawing to the final walkthrough. We know all of El Cajon’s rules, and we make sure your ADU follows every single one. No stress, no surprises – just beautiful results!
Right now, California and El Cajon make it easier than ever to build ADUs. The state wants more housing, so they’re helping families like yours make it happen. Perfect timing for your ADU dream!
- Garage Makeovers – Turn that garage you barely use into a cozy home
- Stand-Alone ADUs – Build a separate little house on your property
- Connected ADUs – Attach new space to your main house with its own entrance
- Small ADUs (JADUs) – Perfect tiny units that fit right inside your existing home
- ADU Fix-Ups – Make an old ADU beautiful and modern again
- Multiple ADUs – If your property is big enough, we can build more than one!
Why El Cajon Families Choose Us
We know El Cajon inside and out. Every neighborhood has different rules, and we know them all! We stay up-to-date with every new California ADU law and every El Cajon requirement.
We handle everything so you don’t have to worry. From checking if your property can have an ADU to getting all the permits to building your dream space – we’ve got you covered.
Remember what makes us different? We believe in being honest from day one. No hidden costs. No missed deadlines. Just clear talking and fair prices, exactly like we promise every El Cajon family.
Your ADU will be built to last in El Cajon’s weather, and it will look amazing with your main house.

Start Your ADU Project in El Cajon Today!
Ready to maximize your property value and living options with a custom ADU? El Cajon homeowners trust Classic Home Contractors for expert design, permitting, construction, and outstanding results.
Call Now or Fill Out Our Form for a Free El Cajon ADU Construction Consultation and Estimate!
Frequently Asked Questions
How much does an ADU cost in El Cajon? Every ADU is different! The cost depends on size, style, and what you want inside. We’ll give you an honest price quote with no surprises. Most families find that the money their ADU makes (or saves) helps pay for itself over time.
How long does it take to build an ADU? Most ADUs take 3-6 months from start to finish. Garage conversions are usually faster, while brand new ADUs take a bit longer. We’ll give you a clear timeline and stick to it!
Do I need permits for my El Cajon ADU? Yes, and we handle all of that for you! We know exactly which permits you need and how to get them quickly. You don’t have to deal with any confusing paperwork.
Can I rent out my ADU? Absolutely! Many El Cajon families rent their ADUs for extra income. We make sure your ADU has everything it needs to be a perfect rental space.
Will an ADU really increase my home value? Yes! ADUs typically increase property value by 20-30%. Plus, you get the rental income or family space right away. It’s like getting paid twice!
What if my lot is small? Don’t worry! We’re experts at fitting ADUs on all sizes of properties. We’ll find the perfect solution that works with your space and follows all the rules.
Do ADUs have their own kitchens and bathrooms? Full ADUs have complete kitchens and bathrooms. Junior ADUs (JADUs) might share some facilities with your main house. We’ll help you decide what works best for your family.
How do I know if my property can have an ADU? Great question! We’ll come look at your property for free and tell you exactly what’s possible. Every property is different, and we love finding creative solutions.
REAL STORIES FROM SATISFIED CUSTOMERS



Family-owned and proudly serving El Cajon
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.