Luxury Home Builder Southern California
Marilynn & Co. builds luxury custom homes throughout Southern California — from coastal estates in Malibu and La Jolla to desert retreats in Palm Springs and hillside homes above Los Angeles. 32 years of experience. Fire-aware construction. Built to last.
32+
Years Experience
500+
Homes Built
6
Counties Served
5.0
Client Rating
Southern California Custom Homes
Marilynn & Co. is one of Southern California’s most experienced luxury home builders — serving Los Angeles, Orange County, San Diego, the Inland Empire, the San Gabriel Valley, and the desert communities of Palm Springs and the Coachella Valley from our base in Covina.
Southern California is not one market. It is six counties with different terrain, different permitting jurisdictions, different fire exposure profiles, and different client expectations. A coastal bluff lot in La Jolla operates under California Coastal Commission rules that have nothing to do with how a hillside lot in Altadena gets permitted. An estate in Rancho Santa Fe goes through covenant review that does not exist in Temecula. A new build in Malibu carries fire risk considerations that are different in kind from a project in Irvine. Builders who work only one market understand one set of conditions. We have been working all of them for over 30 years.
Marilynn & Co. is based in the San Gabriel Valley — centrally located to serve the full Southern California region without the overhead of a large corporate operation. Our clients get the same principal-led attention on a project in Newport Beach that they get on a project in Palm Desert. Same team, same standards, same level of communication throughout the build.
Our work spans the full range of luxury residential construction. Contemporary estates with clean lines and indoor-outdoor flow. Traditional Mediterranean and Spanish Colonial homes suited to the Southern California climate. Modern farmhouse builds with covered outdoor living and high-performance envelopes. Transitional designs that bring classic proportion into how people actually live today. Hillside homes that work with the grade rather than fighting it. Coastal homes built for the marine environment. Desert homes designed for heat, light, and the specific beauty of that landscape. We build what the site and the client call for.
What We Build
Full design-build services for luxury custom homes throughout Southern California. Design, engineering, permits, and construction managed by one team across every county we serve — one point of contact from first site visit through final walkthrough.
Southern California's wildfire environment runs through every county we serve. Every home Marilynn & Co. builds incorporates fire-resistant construction methods developed from 25+ years of frontline firefighting experience across the region.
Our ADU Series brings the same construction standards as our custom homes to accessory dwelling units throughout Southern California — from backyard guest houses in Los Angeles to casitas on desert estate properties in the Coachella Valley.
Our Founder
Anthony Ferro has spent 25 years as a Southern California firefighter. Not one county — the region. He has worked fires from Ventura to San Diego, in the canyons above Malibu, in the hillside neighborhoods of Los Angeles, in the mountain corridors east of Orange County, and in the communities along San Diego County’s wildland-urban interface. He knows how fire moves through Southern California terrain, and he built Marilynn & Co. around that knowledge.
Every home we build in Southern California gets specified the same way: Class A roof assemblies, ember-resistant vent detailing, non-combustible exterior materials where the site calls for it, and defensible space incorporated into the site plan from the start. This is not a premium option. It is our baseline — because Anthony has seen what happens when builders treat fire resistance as optional in a region where it is not.
Thirty-two years of construction experience on top of that background means the homes we build are not just well-protected. They are well-built. Timelines get held. Budgets get managed honestly. And the finished product looks the way the design said it would.
32+
Years Building
25+
Years Firefighting
6
Counties Served
Our Work
A selection of luxury custom homes built by Marilynn & Co. throughout Southern California.
How It Works
01
We start with the site and the vision. Bring us the lot address, your ideas, and your questions. We walk the property, talk through what is realistic for the budget and timeline, and give you a straight picture of what the process involves before you make any commitments.
02
We work with your architect or ours to develop plans built around the site and around how you actually live. Materials, structural engineering, energy systems, and fire-resistant detailing all get resolved in this phase — before construction starts.
03
We manage the full permitting process across every jurisdiction we work in — LA County, Orange County, San Diego, Riverside, San Bernardino, and Ventura. Every county has its own process. We know all of them.
04
Our crews build with the same attention we bring to design. We communicate throughout, surface problems before they get expensive, and deliver a finished home built the way it was designed.
Where We Build
Marilynn & Co. builds luxury custom homes across all six Southern California counties from our base in Covina. We do not subcontract the work to regional crews when a project is outside our immediate area — the same team that builds in Pasadena builds in Palm Springs and La Jolla.
Beverly Hills, Bel Air, Brentwood, Pacific Palisades, Malibu, West Hollywood, Calabasas, Hidden Hills, Westlake Village, Woodland Hills, Encino, Sherman Oaks, Studio City, Burbank, Glendale, Pasadena, Arcadia, San Marino, La Canada Flintridge, Altadena, Manhattan Beach, Palos Verdes, Rolling Hills, and surrounding communities.
Newport Beach, Corona del Mar, Laguna Beach, Dana Point, San Clemente, Mission Viejo, Irvine, Tustin, Yorba Linda, Anaheim Hills, Huntington Beach, Coto de Caza, Rancho Santa Margarita, and surrounding communities.
La Jolla, Del Mar, Rancho Santa Fe, Solana Beach, Encinitas, Carlsbad, Poway, Escondido, San Marcos, Chula Vista, and surrounding communities.
Rancho Cucamonga, Upland, Claremont, Chino Hills, Ontario, Corona, Riverside, Temecula, Murrieta, and surrounding communities.
Thousand Oaks, Westlake Village, Calabasas, Moorpark, Simi Valley, Camarillo, Ventura, Ojai, and surrounding communities.
Palm Springs, Palm Desert, Rancho Mirage, La Quinta, Indian Wells, Cathedral City, and surrounding communities.
Common Questions
Luxury custom home construction in Southern California generally runs between $400 and $900 per square foot depending on location, design complexity, site conditions, and finish level. Coastal sites in Malibu, La Jolla, and Newport Beach tend to run toward the top of that range. Hillside lots with significant engineering requirements add structural cost. Desert builds in Palm Springs and the Coachella Valley have their own cost profile — heat-resistant materials and mechanical systems designed for triple-digit summers. We give every client a detailed project estimate during the consultation so there is a real number on the table before any commitments are made.
Yes. We build throughout Los Angeles, Orange County, San Diego, Riverside, San Bernardino, and Ventura counties. Our team is based in Covina in the San Gabriel Valley — centrally located to serve the full Southern California region. Every project gets the same principal-led attention regardless of which county it is in.
From permit approval to move-in, most luxury custom home projects take between 12 and 24 months depending on size, complexity, and jurisdiction. Permitting timelines vary significantly by county and city — coastal projects involving Coastal Commission review take longer in the pre-construction phase. We communicate the expected timeline clearly at the start and keep you updated throughout.
Our founder Anthony Ferro spent 25 years as a Southern California firefighter working fires across the region before founding this company. That experience is embedded in how we build — not as a marketing angle but as a material-by-material approach to construction that protects homes in an environment where fire is a permanent variable. No other luxury home builder in Southern California brings that background to the work.
We handle the full process — design, engineering, permits, and construction under one roof. You work with one team and one point of contact from the first site visit through final walkthrough. We can work with your architect if you have one, or connect you with architects we have worked with extensively in each market.
Yes. Marilynn & Co. holds an active California contractor's license and is fully insured to build throughout the state. We have completed projects in all six Southern California counties over 32+ years of operation.
Client Reviews
"Marilynn & Co. handled everything from permits to final inspection. The attention to detail was incredible, and the finished home exceeded what we imagined when we first broke ground."
Sarah M.
Manhattan Beach
"After getting quotes from five contractors, Marilynn & Co. came back with the most thorough plan and the most transparent pricing. The project finished on time and on budget."
Michael R.
Orange County
"The construction quality is unlike anything we have seen. Professional, responsive, and they delivered exactly what they said they would. We would build with them again without hesitation."
Jennifer L.
Los Angeles
Get Started
Whether you are ready to break ground or still working through the early planning stages, we want to hear about your project. Consultations are free and there is no obligation.
Phone
(909) 599-0033
Address
5135 N Valley Center Ave
Covina, CA 91724
