Expand Your Living Space with Expert Home Additions
At Jonathan Cole Construction, we specialize in high-quality home additions, including ADUs (Accessory Dwelling Units) and other dwelling unit expansions. Whether you need extra space for a growing family, a home office, or an independent living area, our expert craftsmanship ensures a seamless integration with your existing home.
Why Choose Jonathan Cole Construction?
- Tailored Designs – Custom solutions that blend with your home’s architecture and style.
- Quality Craftsmanship – Expertise in carpentry, electrical, plumbing, and high-end finishes.
- Timely & Reliable – Commitment to project deadlines with minimal disruption.
- Premium Materials – Durable and stylish finishes to enhance functionality and aesthetics.
Our Home Addition Services Include:
- Accessory Dwelling Units (ADUs) – Detached or attached units for rental income or extended family.
- Guest Houses & In-Law Suites – Comfortable and private living spaces.
- Additional Bedrooms & Bathrooms – Expand your home to accommodate your lifestyle needs.
- Home Office & Common Area Expansions – Functional spaces for work and leisure.
- Second Story Additions – Maximize your home’s potential with an upper-level expansion.
- Garage Conversions – Transform underutilized spaces into livable areas.

From concept to completion, we ensure precision, efficiency, and outstanding results for every home addition project.
Get Started Today!
Phone: (415) 955-7127
Serving: San Mateo, Redwood City, San Bruno, San Francisco, Brisbane, South City, Pacifica, Sausalito
Let’s build the perfect addition to your home!