Posted July 2026 | By Eric Engelbert | Updated as the project moves through the approval process.
36 Detached For-Sale Homes Proposed on a Vacant Site Near Segerstrom High School
Warmington Residential is proposing a new for-sale community of 36 three-story detached single-family homes on a vacant 2.48-acre site at 2100 West Alton Avenue in Santa Ana. The project would fill a vacant lot in the South Coast Metro area of the city, tucked between Segerstrom High School to the west and Christ Our Savior Catholic Parish to the east. Six of the 36 homes would be deed-restricted affordable units.
As of July 2026, the project is in the public hearing stage. A Planning Commission hearing was scheduled for June 22, 2026, with a City Council hearing date still to be determined. This is one of the more advanced Santa Ana residential projects currently working through the approval process. This blog covers what is being proposed, who is building it, and where the project stands today.
The Site: A Vacant Infill Lot in South Coast Metro
The 2100 West Alton Avenue site consists of two adjacent legal lots totaling approximately 2.48 acres in the South Coast Metro area of Santa Ana, a stretch of the city between the 405 Freeway to the south and the South Coast Plaza retail district to the north. The parcels carry APN numbers 412-541-06 and 412-541-10 and have frontage along West Alton Avenue.
The site is currently vacant land. It was listed for sale in October 2024 by The Reef Group, a commercial real estate firm, and was described as an opportunity for residential development consistent with its General Plan designation. Warmington acquired the property and submitted its development application in 2025. The land assessment for the primary parcel is listed at approximately $4.3 million in county property tax records.
The surrounding context is primarily residential and institutional. Single-family homes line the neighborhoods directly to the north. To the west, Segerstrom High School and its parking lot occupy a large footprint along Alton. To the east is Christ Our Savior Catholic Parish and its associated parking lot. To the south are athletic facilities, including a lap pool and soccer field, along with additional residential uses. The neighborhood is established and low-density, which is consistent with the LR-7 (Low Density Residential) General Plan designation the site carries.
Because the existing zoning under SD-4 (Specific Development No. 4) and the LR-7 General Plan designation generally allow development at a base density of around seven units per acre, Warmington is using California's State Density Bonus Law to reach the proposed 36 units on 2.48 acres. That law allows developers to build above base density limits in exchange for including deed-restricted affordable units in the project.
Project Details: Two Floor Plans, Two Architectural Styles
The community is designed as 36 detached three-story homes organized across the two-lot site. There are two floor plans, both with private two-car garages. The City of Santa Ana requested that the original architectural design be revised, and the project now offers two elevation styles for each plan type: Spanish and Farmhouse. Both plans top out at 35 feet, which is the maximum height allowed under the project's approvals.
Floor Plans
| Plan 1 | 1,860 SF | 3 bedrooms | 2.5 bathrooms | 3 stories |
|---|---|
| Plan 2 | 2,190 SF | 4 bedrooms | 3.5 bathrooms | 3 stories |
Overall Project
| Address | 2100 West Alton Avenue, Santa Ana, CA 92704 |
|---|---|
| Total Units | 36 detached for-sale homes |
| Affordable Units | 6 total: 3 very low income + 3 moderate income |
| Building Height | Three stories, maximum 35 feet |
| Unit Sizes | 1,860 SF (Plan 1) and 2,190 SF (Plan 2) |
| Bedrooms | 3 bedrooms (Plan 1) or 4 bedrooms (Plan 2) |
| Parking | 2-car garages per home plus 18 dedicated guest spaces |
| Architectural Style | Spanish and Farmhouse (two elevations per plan) |
| Total Site Area | 2.48 acres (two lots) |
| Zoning | SD-4 (Specific Development No. 4) |
| General Plan Designation | Low Density Residential, 7 DU/AC (LR-7) |
| Density Bonus | Yes — California State Density Bonus Law applied |
| CEQA Review | Class 32 Infill Exemption |
| Application Number | DP-2025-21 |
| Applicant | Warmington Residential |
| Assigned Planner | Nancy Tran, Senior Planner |
| Current Status | Public Hearings |
The six affordable homes break down as three units restricted for very low-income households and three restricted for moderate-income households. In Orange County, the very low-income threshold is roughly $79,100 per year for a family of four as of 2026, while the moderate-income threshold sits around $138,900. All six affordable units are for-sale homes, not rentals.
The project site plan includes community open space maintained by a homeowners association, private open space for each unit, and an 8-foot block wall along the property boundary to provide privacy from adjacent uses. The HOA will include rules requiring garages to be kept clear and used for vehicle parking, a condition Warmington added in response to community concerns about overflow parking into surrounding streets near the church and school.
Where the Project Stands: Public Hearings Underway
The 2100 Alton project is the most advanced of several Santa Ana residential projects currently moving through the city's approval pipeline. It has cleared its community meeting requirements and environmental review under a CEQA Class 32 Infill Exemption, which applies to projects on infill sites in urbanized areas that meet certain criteria and do not require a full Environmental Impact Report.
Warmington held two required Sunshine Ordinance community meetings before the formal hearing process. The first was held on September 9, 2025 at the project site itself, an unusual and accessible format for a community meeting. The second was held on December 1, 2025 at the Courtyard by Marriott Santa Ana at 8 MacArthur Place, with a live Zoom option and Spanish-language interpretation available. Warmington's team responded to questions about parking, privacy, and site access at both meetings and revised the project design between the two sessions in response to feedback.
A Planning Commission hearing was scheduled for June 22, 2026. A City Council hearing date has not yet been confirmed. The city project page was last updated on June 12, 2026, ahead of the Planning Commission meeting. We will update this page when the approval record is confirmed.
About the Developer: Warmington Residential
Warmington Residential is the homebuilding arm of The Warmington Group of Companies, a 100-year-old Orange County organization founded in 1926. The company began as a custom homebuilder and grew over the decades into a production homebuilder with a long track record across California and Nevada, having built approximately 40,000 homes over its history. The Warmington Group is headquartered in Costa Mesa.
The 2100 Alton project is being led by Matt Esquivel, Warmington's Director of Development, and Greg Ocasek, the project consultant. Esquivel is also leading Warmington's other active Santa Ana project, the Smoketree Warmington Residential Development at 1350 and 1450 N. Tustin Avenue, which proposes 77 for-sale townhomes and ground-floor retail a few miles to the north. Both projects are working through the Santa Ana approval process simultaneously.
Warmington has prior experience in Santa Ana through the Santa Ana Lyon Towns project, a for-sale residential community at another location in the city. That project, formerly branded as Warmington Residential, demonstrates the company's ability to navigate Santa Ana's entitlement process for for-sale housing. The 2100 Alton project would add a different product type to that track record: true detached single-family homes rather than attached townhomes.
Pricing: Not Yet Released
No pricing or pre-sale information has been released for the 2100 West Alton homes as of July 2026. The project has not yet received final city approval, and Warmington typically does not set or publish pricing until a project is closer to breaking ground and launching sales. I keep up on new ownership housing projects like this across Santa Ana and Orange County and research price lists when available. Check back here for updates or reach out directly.
Looking for New Homes in Santa Ana or Orange County?
The 2100 Alton project would bring true detached single-family homes to a neighborhood that is predominantly established low-density residential, at a size and price point that could draw buyers looking for more space than typical attached townhomes offer. We track new for-sale housing projects across Santa Ana and Orange County from the planning stage through to sales. If you are looking to buy in the area, reach out and we can give you a current picture of what is in the pipeline.
Search homes for sale in Santa Ana | View all OC new developments
