Serving All of Southern California
32 Years of Luxury Home Building
Southern California's premier builder for custom luxury homes and ADUs. From Los Angeles to San Diego, we deliver exceptional craftsmanship throughout Ventura, LA, Orange, San Bernardino, and Riverside counties.
32+
Years Experience
500+
Homes Built
6
Counties Served
5.0
Client Rating
Our Work
A selection of custom homes and ADUs across Southern California, showcasing our commitment to architectural excellence and lasting craftsmanship.
Our Approach
Marilynn & Co. develops residential architecture with long-horizon thinking. Every home is shaped by place, climate, and permanence rather than trend.
Architect-led homes defined by clarity of form, restrained material palettes, and enduring performance. From contemporary estates to transitional designs built for Southern California living.
Our ADU Series offers pre-designed floor plans with the same architectural integrity as our custom homes. Ideal for multigenerational living, home offices, or rental income.
Our Approach
Our founder, Anthony Ferro, is a Southern California firefighter with over 25 years of frontline experience. This unique perspective shapes every home we build—with fire awareness, material discipline, and permanence at the core of our approach.
Marilynn & Co. develops residential architecture with long-horizon thinking. Every home is shaped by place, climate, and permanence rather than trend. Fire awareness, material discipline, and proportion guide our work quietly, without spectacle.
32+
Years Experience
25+
Years Firefighting
6
Counties Served
1,500+
Projects Complete
The Signature Line
Pre-designed floor plans with the same architectural integrity as our custom homes. Each series is designed for specific site conditions and lifestyle needs.
Contemporary guest house with sliding glass doors, gravel patio, and ornamental grass landscaping.
Sleek horizontal wood siding with native California plant border including poppies and sage.
Modern facade renovation with cacti and succulent landscaping including golden barrel and blue agave.
Eco-friendly design with living green roof covered in sedums, surrounded by succulent beds.
Contemporary guest house with sliding glass doors, gravel patio, and ornamental grass landscaping.
Resort-style guest house with natural stone accents, covered patio, and agave landscape design.
Traditional Spanish-style casita with white stucco, terracotta roof, arched doorway, and courtyard fountain.
Dramatic cabin-style retreat with soaring glass front, exposed timber beams, and natural wood exterior.
Coverage
Proudly serving communities across Southern California with local expertise and regional understanding of building codes, climate conditions, and architectural traditions.
Hear from homeowners who've transformed their properties with Marilynn & Co.
6 months ago
"Marilynn & Co. handled everything from permits to final inspection. The attention to detail was incredible, and our rental income now exceeds $4,800/month. Best investment we've made!"
Sarah M.
Manhattan Beach · Detached ADU
4 months ago
"After getting quotes from 5 contractors, Marilynn & Co. offered the most comprehensive plan and transparent pricing. The project finished on time and on budget. Highly recommend!"
Michael R.
Orange County · Garage Conversion
6 months ago
"Their construction quality is unmatched. The team was professional, responsive, and delivered exactly what they promised. Our ADU turned out even better than we imagined!"
Jennifer L.
Los Angeles · Custom Granny Flat
Get Started
Whether you’re envisioning a custom estate or exploring ADU options, our team is ready to guide you through every step. Contact us to schedule a consultation.
Phone
(909) 599-0033
Address
5135 N Valley Center Ave
Covina, CA 91724
