
Landscaping & Landscape Design
in San Marcos
From San Elijo Hills to Twin Oaks Valley
Who designs and installs landscapes in San Marcos?
Modern Yardz designs and builds complete landscapes in San Marcos - drought-tolerant planting, smart irrigation, patios and pavers, retaining walls on sloped lots, artificial turf, and lighting - in San Elijo Hills, Santa Fe Hills, Rancho Dorado, Discovery Hills, Twin Oaks Valley, and Lake San Marcos. We are a California-licensed design-build firm (CSLB #1082881, founded 2018, 2,900+ completed projects) that shows you the finished yard in 3D with a line-item cost before work begins.
Why Choose Modern Yardz
for Landscape Design
San Marcos yards range from hillside lots with long views in San Elijo Hills and Discovery Hills to the flatter valley neighborhoods of Twin Oaks Valley and the lakeside homes around Lake San Marcos. Many newer homes come with a builder's basic yard on a sloped lot, which is exactly where good landscape design pays off: terraces that create usable flat space, planting that holds the slope, and outdoor rooms that make the view part of daily life. Modern Yardz designs San Marcos landscapes around the lot you actually have.
Water is part of every plan. Most of San Marcos, including the Lake San Marcos community, is served by the Vallecitos Water District, and smart water use is simply the right way to build a North County landscape. We hydrozone planting by water need, specify drip irrigation and weather-based smart controllers, and design drought-tolerant and Mediterranean palettes that meet California's MWELO standards - and we help you document lawn replacement for any rebate you qualify for.
Approvals depend on where you live. San Elijo Hills is a master-planned community with its own town center, and planned neighborhoods often have HOA design guidelines for front-yard work and walls. Lake San Marcos is unincorporated, so building permits there run through the County of San Diego rather than the City. We sort out the right path for your address before design is final.
Every project starts with a 3D rendering and a line-item cost before any work begins. Founded in 2018, Modern Yardz has completed 2,900+ San Diego County projects and holds a 5.0 rating across 104 Google reviews. Call 619-775-9554 for a free design consultation.
Hillside Terraces & Walls
Engineered retaining walls and terracing that turn sloped San Marcos lots into level lawns, patios, and gardens, with drainage behind every wall.
Drought-Tolerant Planting
Mediterranean, native, and succulent palettes that thrive in North County sun and hold slopes with deep roots, on a fraction of a lawn's water.
Smart Irrigation
Drip and low-flow zones, weather-based controllers, and MWELO-compliant design that keeps plants healthy and water bills down.
Patios & Outdoor Living
Paver, porcelain, and concrete patios with shade, fire features, and outdoor kitchens - outdoor rooms planned around the view.
Artificial Turf
Pet-safe, lead-free turf for play areas and lawns that stay green year-round with essentially no irrigation.
Landscape Lighting
Low-voltage LED path, step, and accent lighting for hillside steps, trees, and evening entertaining.
From Concept to Completion
Property Walk
We read slope, sun, soil, and drainage, check HOA or County requirements for your address, and talk through how you use the yard.
3D Design & Line-Item Cost
You see the full landscape in a photorealistic 3D rendering with a line-item cost before any work begins.
Build
Grading and walls, drainage, hardscape, irrigation, planting, turf, and lighting by one team on one schedule.
Reveal & Care
A final walkthrough, smart-controller programming, care instructions, and rebate paperwork where it applies.
Start Your Free Design Consultation
Tell us about your project and we'll be in touch within 24 hours. No pressure, no obligation.
See it in 3D before we build it
Every landscape design project starts as a photo-realistic 3D model, so you can walk through the finished space and change it before anything is poured or planted. This is one of those walkthroughs.
A sloping yard cut into stepped terraces behind white retaining walls, with a covered outdoor kitchen and bar, a linear fire table in a lounge, and frameless glass railings holding the view.
See all 3D design walkthroughsRecent Landscape Design Projects






Landscape Design FAQ
Across San Diego County, our landscape projects range from about $25,000 for focused upgrades such as turf, lighting, and planting to $300,000+ for complete transformations, with most projects running $50,000 to $150,000. Hillside walls and terracing add to cost. The design fee is typically included, and your 3D design comes with a line-item cost.
Yes - it is some of our favorite work. Engineered retaining walls and terraces create flat lawns and patios, deep-rooted planting stabilizes what stays sloped, and drainage keeps water moving away from walls and the house. Walls over 4 feet are engineered and permitted, which we handle.
If your neighborhood has an HOA, front-yard landscaping, walls, and visible changes usually need its approval. Planned communities such as San Elijo Hills commonly have design guidelines. We review your community's rules and prepare the submittal with 3D renderings.
Lake San Marcos is an unincorporated community, so building permits there are handled by the County of San Diego rather than the City of San Marcos. We confirm which agency applies to your address and manage the permits for walls, structures, and other permitted work.
Most of San Marcos, including Lake San Marcos, is served by the Vallecitos Water District. Turf-replacement and efficiency rebates, about $2 per square foot through SoCal WaterSmart and more in unincorporated county areas, are often available through regional and local programs, though rules change. We confirm the current options for your address.
Deep-rooted, drought-tolerant shrubs and groundcovers - California natives, salvias, rosemary, and similar Mediterranean plants - combined with proper drainage. Bare slopes and shallow-rooted lawns erode; a planted, irrigated, well-drained slope stays put.
A planting and irrigation refresh moves quickly; a full backyard with walls, patios, turf, and lighting is built in phases over several weeks, and permits for engineered walls add time up front. You get a schedule with your design.
Explore related specialties
Go deeper on the details
What Is a Retaining Wall Used For?
How retaining walls level sloped yards, with costs by material and permit thresholds.
How Much Does Landscape Design Cost in San Diego?
What landscape design and installation cost by scope.
Backyard Remodel Cost in San Diego
Full cost breakdown by scope and component for a San Diego backyard remodel.

Ready for Your
Landscape Design Project
in San Marcos?
Schedule your complimentary design consultation. We'll visit your property, walk your space, and show you exactly what's possible.