San Marcos design-build · Since 2005
San Marcos home remodeling, designed and built by one team.
Accredited, certified and held to accountCalifornia contractor #922807, in business in San Diego for 21 years
San Marcos · San Diego County
Whole home remodels, kitchens, bathrooms, additions and ADUs in San Marcos.
San Elijo Hills, Lake San Marcos and the older neighborhoods near Cal State San Marcos each bring a different house to the table, and a different remodel.
Kaminskiy Design and Remodeling was founded in San Diego by Sergei Kaminskiy in 2005 and is still founder-led. In San Marcos our designers, architectural drafters and project managers take your home from the first sketch to the final walkthrough, on one contract, and we handle the plans and permits with the City of San Marcos. No handoffs, no finger-pointing, no surprises.
Start with a complimentary consultationWhat to know first
San Marcos is a college town with 1960s lakefront and 2000s hillsides. Here is what shapes a remodel.
San Marcos holds Cal State San Marcos and Palomar College, the 1960s and 1970s homes around Lake San Marcos, the 1980s and 1990s tracts off Rancho Santa Fe Road and Twin Oaks Valley, and the 2000s hillside village of San Elijo Hills with its own town center. The City issues its own permits, the newer communities come with homeowner associations, and the hills to the north and west reach into the fire zones. Two of our gallery projects are here, a kitchen and a bathroom, and we serve homeowners across 92069 and 92078.
San Marcos, San Diego County. Our Design Center in Rancho Bernardo is about 20 minutes away off peak; the first meeting is at your home.
San Marcos is its own city, so permits come from the City of San Marcos Development Services Department at the Civic Center, not from the County or the City of San Diego. Most remodels are a building permit with no hearing. Addresses in the unincorporated pockets north of the city use San Marcos mail but go to the County's counter; we check the parcel first.
The drawings, the submittal and the back-and-forth with plan check are ours to handle, not yours.
Source: City of San Marcos
The homes around Lake San Marcos date from the 1960s and 1970s and sit under the lake community's covenants, which review exterior changes. Interior remodels need nothing from them; a new window, a patio cover or an addition goes to the committee before the City permit. The same pattern holds in San Elijo Hills, Discovery Hills and the newer tracts, each with its own association.
The 1960s and 1970s lakefront and Richland homes are single-story ranches with closed kitchens, small baths and the original systems. The 1990s and 2000s homes of San Elijo Hills and the Rancho Santa Fe Road tracts are two-story, already open, and dated in the finish. Our San Marcos kitchen and bathroom in the gallery are the first kind, brought to today.
The slopes of Twin Oaks Valley, the ridges above San Elijo Hills and the hillsides to the north sit in Cal Fire's higher fire hazard severity zones, and the 2014 Cocos fire burned into the city. Additions and ADUs there are built to the ignition-resistant rules with defensible space; kitchens and baths inside the walls are not affected.
San Marcos is warm enough that a west-facing room bakes in late summer. Insulation and attic ventilation during a remodel, windows chosen for heat gain, and covered patios on the west side pay back every August. California's Title 24 energy code governs the new lighting and windows.
With Cal State San Marcos and Palomar College in town, an ADU often pays its own way. Under state law a single-family lot may add one accessory dwelling unit and one junior unit, the City issues the permit, and the associations can shape the design but not forbid it. The older Richland and Twin Oaks lots take detached units; the newer tracts take garage conversions.
To orient yourself: State Route 78 runs along the south edge, San Marcos Boulevard through the center past the Civic Center and the Creek District, Cal State San Marcos sits on the hill to the south, Palomar College to the west, and San Elijo Hills climbs the ridge beyond. Finishes are chosen at our Design Center in Rancho Bernardo, about 20 minutes away; the first conversation happens at your kitchen table.
What we design and build in San Marcos
San Marcos remodeling services: five ways to fall back in love with your home.
01 · Most requestedWhole Home Remodeling
Two rooms or the entire floor plan, designed as one cohesive home instead of a collection of projects.
Whole home remodels
02Kitchen Remodeling
Custom cabinetry, islands that work, lighting in layers. Designed around how you cook and gather.
Kitchens
03Bathroom Remodeling
Spa primaries, hall baths, universal design.
Bathrooms
04Room Additions
Build out or build up. Additions that look original.
Additions
05ADUs and Conversions
Detached casitas, attached suites, garage conversions.
ADUsRemodeling in San Marcos
Every service. One local team.
Whole home remodels, kitchens, bathrooms, additions, ADUs and outdoor living, all designed and built by the same team, all in San Marcos.
Nearby neighborhoods
We work in every neighborhood of San Diego County. See all thirty-seven neighborhood pages or schedule a consultation.
Our work in San Marcos and nearby
San Marcos remodels, and the neighbors next door.
Two projects in San Marcos, then recent projects in Carlsbad, Escondido and Vista. Every photo is a Kaminskiy home, designed and built by our own team.
The San Marcos remodeling guide
What we remodel in San Marcos, room by room.
What San Marcos homeowners ask us for, room by room. Two San Marcos projects are in our gallery below.
A 1960s lakefront ranch opened up, rewired and turned toward the water, or a 2000s San Elijo Hills house refinished to one standard in the same footprint.
Whole home remodelingOur San Marcos kitchen remodel in the gallery: the wall to the family room down, an island in, the panel upgraded, and finishes for a family that cooks every night.
Kitchen remodelingWhat a kitchen costs in San Diego in 2026
Our San Marcos bathroom remodel in the gallery: the small 1970s bath made into a real one, with a walk-in shower and storage where the counter was.
Bathroom remodelingGround-floor additions on the older lots; a room over the garage in the newer tracts within the HOA's rules. In the hills, built to the fire rules.
Room additionsDetached units on the Richland and Twin Oaks lots, garage conversions in the tracts, a tenant from either campus. The City permits them.
ADUs and conversionsShade on the west side, an outdoor kitchen, a fire feature, and on the lake lots a deck toward the water within the community's rules.
Outdoor livingLake San Marcos has many owners who intend to stay. The quiet version of accessibility: no steps at the door, no curb at the shower, no door too narrow.
Universal designGood questions
San Marcos remodeling FAQ: a few straight answers before you call.
Permits with the City of San Marcos, timelines, where you choose materials, and what the first meeting costs. More on the full FAQ page.
Read all FAQsThe City of San Marcos Development Services Department at the Civic Center, for addresses inside the city. The unincorporated pockets to the north go to the County; we check the parcel first.
Not work inside the walls. Exterior changes, including windows, patio covers, additions and ADUs, go to the association before the City permit, and we submit to both.
A kitchen or bath inside the walls runs three to six months from the first visit; an addition six to ten, with the association's review where it applies.
Nothing. The in-home design consultation is complimentary anywhere in San Marcos. A designer comes to your home, listens to what you want to change, takes measurements and photos, and tells you honestly whether we are the right fit for the project.
We do. Permits for San Marcos homes are issued by the City of San Marcos. Our design and architectural team drafts the construction documents, a licensed structural engineer stamps them where the scope calls for it, and we submit them and manage the whole process for you.
Yes. Two projects in San Marcos are in our online gallery, along with projects in Carlsbad, Escondido and Vista and hundreds more across San Diego County. Your designer can show you work near you at the first meeting.
All of San Marcos, zip codes 92069 and 92078, and the neighborhoods around it: Vista, Escondido, Carlsbad and Encinitas. If your street is not on our list, call us anyway. We serve every city in San Diego County.
A kitchen remodel usually takes about 4 to 8 months from the first consultation to completion. A bathroom typically takes 3 to 5 months. The design and permit phases come first, and construction is the shorter part. Permit review times vary with the City of San Marcos, and we plan around them.
At the Kaminskiy Design Center, 12396 World Trade Dr, Suite 108, San Diego, CA 92128, with your designer. Most clients visit once or twice during the design phase. The first meeting, though, happens at your San Marcos home.
Yes. Kaminskiy Design and Remodeling is a fully licensed and insured California contractor, license #922807, in business in San Diego since 2005.
Start here
Schedule your complimentary in-home design consultation anywhere in San Marcos.
- A designer comes to you, measures, listens and shares first ideas.
- No pressure and no obligation. We tell you if we are not the right fit.
- Our Client Care team calls back during the time slot you choose.