BONSALL — Rolling green foothills, avocado and citrus groves, meandering horse trails, Mediterranean microclimate and small-town charm have long defined life in Bonsall.
Soon, hundreds of new homes will, too. Trumark Homes has broken ground on Ocean Breeze Ranch, a massive undertaking that will bring 381 single-family residences to an area that has historically seen limited, low-density growth.
While the project cleared years of review, some local planners and residents continue to sound the alarm that increased demand on roads, utilities and school capacity could strain infrastructure in the rural community.
The Newport Beach-based builder acquired the beloved local property, long known as the Vessels Ranch stallion farm, in a $53 million sale brokered by Colliers. The roughly 1,403-acre site at 5820 West Lilac Road will include five distinct neighborhoods, more than five miles of trails, nine acres of parks, 45 acres of common space with recreation areas, and more than 950 acres of preserved open space.
For a project of its size, Ocean Breeze Ranch had an unusually smooth approval process, according to Hunter McDonald, a land-use adviser to county Supervisor Jim Desmond and a former county planner.
In the works since 2017, McDonald said the project — designed as a "conservation subdivision" — benefited from early community outreach and close alignment with the Bonsall Community Plan, the county land-use document guiding development across the 32.8-square-mile unincorporated community.
"The idea is to consolidate the development footprint and preserve as much open space and habitat as possible," McDonald said. "It's consistent with the county's General Plan — no amendments — so it reflects the density people already agreed should occur on this property. Additionally, Trumark was very transparent and available to the community."
The San Diego County Planning Commission approved the project in December 2019, before the county adopted its more stringent vehicle miles traveled, or VMT, framework, which further helped expedite the project's approval, McDonald said.
Under Senate Bill 743, the county now evaluates traffic impacts based on vehicle miles traveled — the amount and distance of driving a project generates — rather than traditional measures such as congestion or delay.
Based on current VMT guidelines, any residential development in Bonsall is likely to be deemed "inefficient" from a traffic standpoint, according to McDonald.
"Ocean Breeze is kind of a unicorn. Any project in this area is almost guaranteed to have unmitigable vehicle miles traveled impacts, which can trigger years of review," McDonald said. "Since it was submitted before the county adopted VMT rules, and it's fully consistent with the General Plan, it allowed the project to pencil. Most properties wouldn't get that kind of slam dunk."
McDonald contrasted the development with the controversial Harmony Grove Village South, a proposed 453-unit residential project near Escondido and San Marcos, which saw a torrent of criticism from residents, neighbors and conservationists, including hundreds of emails to Desmond's office and two environmental lawsuits.
For Ocean Breeze Ranch, he recalled little community opposition.
"Honestly, I didn't hear a lot about this project from the community," McDonald said. "Almost every project gets opposition for some reason, but this one really didn't. There was no appeal, no lawsuit — almost 400 units in pristine Bonsall. Across the board, it just seemed like the right project, in the right location, with the right team."
McDonald acknowledged the county's aging infrastructure and the challenges facing the Bonsall Unified School District, which has struggled to secure funding for campus expansions and classroom upgrades.
While the tension between growth and infrastructure may create "growing pains," McDonald said he largely trusts the process to sort it out.
"I have a lot of faith in the process when it comes to infrastructure — water, power, sewage, roads and traffic — that's fleshed out really well through the permitting process, even if it can be frustrating for residents," McDonald said. "Plus, we need the housing, even market-rate homes. We are at such a deficit that nearly 400 units make a nice dent."
Future growth
Ocean Breeze Ranch will include multiple neighborhoods with single-family homes ranging from roughly 2,700 to 3,400 square feet, along with parks, trails and preserved open space. The site offers access to Interstate 15 and state Route 76, the main east-west corridor through the community.
The project comes amid rising home prices in Bonsall. According to Redfin, the median home sale price in the area reached about $1.2 million in December, markedly higher than a year earlier.
The development is located near the San Luis Rey River in the uplands of the Peninsular Ranges. The area is bordered by Fallbrook to the north, Oceanside to the west, Valley Center to the east and Vista to the south. The terrain of steep hills and valleys has long supported agriculture, equestrian uses and estate-style homes.
Near the project site, county crews are working on the new Bonsall Community Park, the community's first designated public park. The 63-acre site, part of the San Luis Rey River Park Master Plan, is expected to open in summer 2026 and will include sports fields, playgrounds, picnic areas and walking paths.
Bonsall has about 4,300 residents across roughly 1,600 households, according to Census data. The majority of residents — median age is 44, with 44% between ages 60 and 69 — have long favored a quiet, rural lifestyle, with homes spread across hillsides rather than tightly clustered in neighborhoods.
The county's land-use plan, the Bonsall Community Plan, groups a majority of higher-density housing and commercial services in two defined village areas along SR-76, near Mission Road, Camino del Rey and Old River Road to the west, and Olive Hill Road to the east.
County planners have preserved Bonsall's pastoral setting by discouraging urban-style development outside the village boundaries and maintaining open space, with homes scattered across spacious parcels ranging from 1 to 20 acres or more.
While Ocean Breeze Ranch represents a shift from the multi-acre lots and estate-style homes typical of Bonsall, Richard Douglass, Southern California division president for Trumark, believes the project strikes a balance between urban housing density and the area's rural character.
"Bonsall has always been a unique enclave— it's managed to stay rural while everything around it has changed. And so, to have any development in Bonsall at all is remarkable," Douglass said. "The preservation of open space (at Ocean Breeze Ranch) is unlike anything I've seen in California development. We're preserving well over 900 acres, thanks to an unprecedented agreement with state and federal resource agencies. As developers, we're used to environmental mitigation, but this is on an entirely different scale."
Douglass, at the helm of Trumark for the past 10 years, said the project also includes innovative revegetation efforts, such as harvesting seeds from native plants and replanting them on site.
The homes will be conventional single-family homes with varied lot sizes, floor plans, and prices. The average lot is about 5,000 square feet, which is considered large by modern California standards, Douglass said. The Ocean Breeze lots are relatively small, however, when compared with existing Bonsall properties, which range from 43,560 square feet (one acre) to 217,800 square feet (five acres) or more.
While the subdivision will be noticeably different from traditional neighborhoods, an operating horse ranch that trains thoroughbreds and keeps livestock will remain on-site, helping preserve an overall rural atmosphere that has long defined the unincorporated community, Douglass said.
"It almost looks like Tuscany — that's how untouched it's been," he said. "When you stand out there, you feel how unique that environment really is."
Growing pains
As new homes are built, locals have braced themselves for the inevitable "growing pains" — particularly regarding public infrastructure — that accompany large residential developments.
Larissa Anderson, president of the Bonsall Unified School District board of trustees and chair of the Bonsall Community Sponsor Group, an advisory board to the county Board of Supervisors on local land-use and planning issues, described Bonsall as a semi-rural community, where "residents are understandably wary when larger projects are proposed."
"Many people choose to live here specifically because it is a semi-rural, small community, and proposals that introduce higher density often trigger concerns about road safety, school capacity, evacuation and preservation of local identity," Anderson said, noting that large clustered subdivisions represent a clear departure from past development.
According to Anderson, the aspects of Bonsall most vulnerable to change right now include farmland, open space, wildlife habitat and "that small-town feel."
In her view, Bonsall is at risk of reaching a "tipping point," when development accelerates beyond infrastructure capacity and daily commutes become congested.
"Ocean Breeze Ranch alone may not define that tipping point, but it contributes to a broader cumulative shift that deserves careful, long-range consideration," Anderson said. "Our roads, utilities and educational facilities were never designed for this scale of development."
In addition to Ocean Breeze, there are other residential projects in various stages of completion in Bonsall, including Bonsall Oaks, formerly the Polo Club at Valley Vista, a 442-acre development along Gopher Canyon Road that will add up to 255 homes, including a gated luxury neighborhood branded as The Havens.
Jennifer Haider, vice chair of the Bonsall Community Sponsor Group and a former real estate broker in North Carolina for 25 years, has long echoed concerns about the influx of new homes and the poor condition of roads and schools in Bonsall.
"There's too much hitting North County right now, and we just aren't prepared for it," Haider said. "Where are we going to send those kids to school? Fix the roads, build the schools, and then let's talk about everything else."
Both Anderson and Haider credited Trumark with adhering to the county land-use plan, preserving green space, supporting an equestrian staging area and offering more than required in school fees, calling those steps meaningful.
However, Anderson noted that current zoning and approval processes review projects individually and often miss the cumulative effects on infrastructure, community character and public services.
"As a result, projects can comply with the code while still undermining the long-term vision for Bonsall," Anderson said.
In addition to large housing projects, local planners have pointed to a wave of county-level policy shifts — including expanded allowances for accessory dwelling units and the ability to sell them as condominiums, changes to cannabis regulations and zoning that encourages clustered housing — that may produce outcomes the community plan did not foresee, gradually pushing Bonsall and other unincorporated areas in a more urban direction.
"People look out here and say, 'Oh, there's land — let's build.' Or, 'Let's put the cannabis locations there.' Hold on. Let's take a minute and figure this out," Haider said.
Country roads
Questions remain about transportation and emergency access for hundreds of new homes in the Bonsall pipeline and for existing residences. People want specifics, not general promises, Anderson said.
During the review process, the Bonsall Community Sponsor Group raised concerns about traffic along Camino del Rey and Lilac Road, suggesting the construction of a new bridge over the San Luis Rey River.
According to Douglass, however, county traffic engineers determined that Ocean Breeze Ranch does "not create a direct traffic impact to the Camino del Rey bridge segment," which was originally constructed as a golf cart underpass.
"The bridge's age, right-of-way constraints and the cost of structural feasibility studies make widening a complex undertaking," Douglass said, adding that while the project showed no impact, Trumark worked with the county to dedicate part of its transportation fees toward a formal bridge study that will consider widening, reconstruction or replacement.
Douglass said the project also includes major road upgrades, including installing half-width right-of-way improvements along the project's West Lilac Road frontage and completing full intersection upgrades at Old Highway 395 and Lilac Road. Trumark is also providing upgrades and new facilities for the Rainbow Municipal Water District.
Along with traffic unease, emergency access — especially for wildfire evacuation — is one of the community's most urgent needs as Ocean Breeze Ranch moves forward, given Bonsall's narrow, poorly maintained roads, Anderson and Haider said.
"Many Bonsall neighborhoods rely on narrow, single-access roads that were never designed to support high traffic volumes," Anderson said.
Haider, who lives in Bonsall, said her neighborhood has one way in and one way out, which could make it difficult to leave quickly in an emergency.
"These are country roads and they get tricky," Haider said.
Local wildfire worries still linger from the 2017 Lilac Fire, a wind-driven blaze near Old Highway 395 and Dulin Road that ripped through Bonsall and neighboring Fallbrook, burned about 4,100 acres, destroyed 157 structures and forced roughly 10,000 residents from their homes, according to Cal Fire.
And the threat of wildfire has only grown since then. The North County Fire Protection District, serving Fallbrook, Bonsall, Rainbow and the surrounding communities, has reported more wildfire calls recently due to longer, harsher seasons.
Last year, Bonsall and the surrounding area experienced a number of brush fires, including the Mission Fire, a 21-acre blaze near SR-76 and South Mission Road, an 80-acre fire (also called the Lilac Fire) and the 17-acre Pala Fire.
"People want to know how residents will get out during a wildfire or other emergency," Anderson said.
Schools
In terms of public infrastructure, schools remain a top concern for residents.
Bonsall Unified School District, spanning roughly 88 square miles from Camp Pendleton to Pala, serves about 2,231 students in San Diego County, about 70% of whom are minorities, and operates five schools with a student-teacher ratio of roughly 22-to-1.
Prior to the opening of Bonsall High School in 2014, the school district had struggled for decades to secure funding and land for a new secondary school campus. For years, most high school students in Bonsall attended Fallbrook High School, which was operating above capacity, according to county documents.
More housing means more students, and without expansion, the district will lag behind growth, Anderson said, which will intensify other infrastructure issues, such as traffic and public safety.
"At present, the district does not have sufficient school facilities to comfortably absorb a significant influx of new students without additional campuses or major expansion," Anderson said.
From the developer's perspective, Douglass said he recognized concerns about the potential lack of resources for schools, noting that educational infrastructure was "one of the more focused elements" of planning.
Trumark reached an agreement with the Bonsall Unified School District to pre-fund school-related impact payments, Douglass said, contributing more than required to support the district's needs sooner rather than later.
"We didn't want to wait until the last home was built to support the schools," Douglass said, noting that the five neighborhoods will open in phases rather than all at once. "We wanted to make sure the schools were solid and prepared to house the students we generated."
After discussions with the Bonsall Unified officials, Trumark also voluntarily agreed to improve student drop-off and pickup near local schools, a joint effort to improve circulation and safety for future students and families, Douglass said.
But for school officials, development impact fees aren't enough.
"The community wants clear answers about how Ocean Breeze Ranch and other large-scale developers can further support construction of new educational facilities — particularly at the secondary level — to accommodate anticipated enrollment growth, rather than relying solely on impact fees that historically fall short of covering true capacity needs," Anderson said.
Securing funding from traditional avenues has been an ongoing challenge for Bonsall Unified. The school district has had several bond measures fail in the last decade, including Measure DD (2016) and Measure EE (2018).
In 2024, voters rejected a third, Measure V, a $59 million general obligation bond that would have funded new classrooms, campus repairs, safety upgrades, and modernized career technical education facilities across the district.
Voters have cited concerns about higher tax rates, cost-of-living increases, a lack of trust and clarity about the actual taxpayer impact, and the failure of some districts to maintain existing facilities.
According to Anderson, the bond failures are not due to a lack of local support for public education, but rather the difficulty of aligning timing, cost and feasibility across such a large district amid land-use decisions beyond its control.
Since developer impact fees alone "do not cover the true cost of building schools," the district is currently exploring alternative funding strategies and planning for school facilities with community input.
"As Ocean Breeze Ranch is built as planned, the next critical step is establishing realistic funding pathways and delivery mechanisms for new school facilities," Anderson said.
Trumark expects construction to begin in late summer 2026, with the first home closings projected for early 2027 and buildout anticipated by 2029.
As the project moves forward, Anderson said residents recognize that change is coming under state and county housing mandates and "development pressure in Bonsall is not optional." The debate, she said, is about how that change is shaped.
"Ultimately, responsible growth is less about meeting numerical housing targets and more about maintaining a livable balance between housing, infrastructure, environmental stewardship, and quality of life over time," Anderson said.

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