Elevate Your Home: Custom Casitas & ADU Construction
Why Choose Keystone Construction for Your Casita or ADU Project?
- Custom Designs: Keystone Construction creates personalized casita and ADU plans that match your property’s style while maximizing usable space and functionality.
- Design Expertise: With our experienced design team, every aspect of your casita or ADU is carefully planned and artfully executed for seamless integration with your home.
- Comprehensive Design Services: From your first consultation to detailed plans, permitting, and material selection, Keystone Construction guides you through every stage of creating your casita or ADU.
- Sustainable Approach: By using eco-friendly building practices and energy-efficient solutions, we help you expand your home responsibly while embracing modern sustainability standards.
Why Choose Us For Your Estimate
Getting an estimate is a critical first step in your construction project. We aim to make this process smooth, informative, and tailored to your needs.
- Licensed B-2 Professionals: Our company is licensed (License #0092379), ensuring top-notch expertise and reliability in every project we undertake.
- Free and No Obligation: Complimentary, no-obligation consultation.
- Same-Day Estimate: We strive to offer same-day on-site estimates for your convenience.
- Expertise: Accurate, reliable estimates tailored to your needs. We find innovative solutions, improve your ideas, and offer new features to enhance your living experience
- Detailed and Transparent: We take the time to clearly explain your options, ensuring you understand the best solutions for your project.
- Customer-Centric Approach: Personalized service prioritizing your needs and preferences, ensuring a tailored and satisfying experience.
- Satisfaction Guaranteed: Satisfied clients and positive testimonials attest to our reliability and excellence.

The Keystone Construction Difference
Casitas & ADU Construction Process
Consultation:
Discuss your vision, goals, and budget with our experienced team. We’ll evaluate your property and zoning requirements to explore the best options for your casita or ADU.
Design and Planning:
Collaborate on a custom layout and architectural design that complements your home and meets your needs. Choose materials, finishes, and features with our expert guidance.
Project Coordination:
We handle permits, scheduling, and coordinate with licensed contractors to ensure your project progresses smoothly. You’ll receive regular updates so you’re always informed.
Final Walkthrough:
Review every detail of your new casita or ADU to confirm it aligns perfectly with your vision before final sign-off.

Casitas & ADU Trends in 2025
Flexible Living Spaces: Design multi-purpose casitas and ADUs that can function as guest suites, home offices, or rental units.
Smart Home Integration: Incorporate smart lighting, security systems, and energy-efficient features for a modern, connected living space.
Outdoor Connectivity: Large windows, sliding doors, and outdoor patios blur the line between indoor and outdoor living.
Mixed Materials: Combine wood, stone, and modern finishes for a balanced, contemporary aesthetic.
Sustainable Building: Use eco-friendly materials and energy-efficient systems to create greener, more responsible homes.
Benefits of Building Your Casita or ADU with Keystone Construction
Added Value: Increase your property’s worth with functional, stylish additional living space.
Flexible Use: Whether it’s for guests, extended family, or rental income, your ADU can adapt to your changing needs.
Custom Style: Tailored design ensures the addition complements your existing home.
Energy Efficiency: Modern construction methods and materials reduce long-term utility costs.
Whether you’re dreaming of a modern minimalist design or a cozy rustic space, Keystone Construction is here to help bring your vision to life. Our expert design team will guide you through every step of the process, ensuring a seamless experience and a kitchen design that exceeds your expectations.
Why Choose Us For Your Estimate
Getting an estimate is a critical first step in your construction project. We aim to make this process smooth, informative, and tailored to your needs.
- Licensed B-2 Professionals: Our company is licensed (License #0092379), ensuring top-notch expertise and reliability in every project we undertake.
- Free and No Obligation: Complimentary, no-obligation consultation.
- Same-Day Estimate: We strive to offer same-day on-site estimates for your convenience.
- Expertise: Accurate, reliable estimates tailored to your needs. We find innovative solutions, improve your ideas, and offer new features to enhance your living experience
- Detailed and Transparent: We take the time to clearly explain your options, ensuring you understand the best solutions for your project.
- Customer-Centric Approach: Personalized service prioritizing your needs and preferences, ensuring a tailored and satisfying experience.
- Satisfaction Guaranteed: Satisfied clients and positive testimonials attest to our reliability and excellence.

Our Clients
Client Testimonials


“They were amazing. Remodeled both of the bathrooms and they didn’t waste time. They worked on one bathroom and then the next so we always had a fully functional bathroom. Love the results.”


Awesome is all I can say look at this beautiful work they did everyone came on time was very professional did great job and quick


“Tal the rest of his team at Keystone Construction are a pleasure to work with. Very knowledgeable and excellent customer service. I’ll definitely be using them again when I redo my other bathrooms and eventually the kitchen too!”





