Posted August 2026 | By Eric Engelbert | Updated as the project progresses.
An Oil Company Is Building Brea's Largest Master-Planned Community on 265 Acres of Former Drilling Land
Most master-planned communities in Southern California start with a real estate developer and a piece of vacant or agricultural land. Brea 265 starts with an oil company and a hillside that has been producing crude for decades. Aera Energy, a Bakersfield-based oil and gas producer, concluded that the 265-acre property it operates north of the 91 Freeway in Brea is worth more as residential real estate than as an active drilling site. The Brea 265 Specific Plan, approved by the Brea City Council on July 19, 2022, gives Aera a roadmap for winding down oil operations and replacing them, parcel by parcel, with 1,100 homes, parks, trails, and an expanded sports facility that will serve the broader Brea community.
The scale of Brea 265 makes it the largest new residential development in the city's history. At 1,100 units across 265 acres, it is also one of the larger master-planned projects currently in any stage of development in Orange County. The hillside setting north of the freeway gives the community a topographic character that is rare in North OC, where most new residential construction goes onto flat commercial land or infill parcels in established neighborhoods. Views of the ocean on clear days and views into the canyons to the north are a feature of the upper portions of the site that will command price premiums not available anywhere in the existing Brea inventory.
This post covers how the project came together, what it includes, why Aera is the developer, and what the phased oil field conversion means for the timeline. For the full Brea development picture, see the Brea development overview.
The Site: 265 Acres of Active Oil Land North of the 91 Freeway
The Brea 265 site sits on the hillside north of the 91 Freeway at the eastern edge of the city, in an area that has been used for oil and gas production for most of the 20th century. The Brea oil field is one of the older producing fields in California. It predates most of the city's residential development and has been a background feature of the Brea landscape throughout the city's suburban growth. Driving north on Brea Canyon Road or through the adjacent neighborhoods, the pump jacks and storage tanks on the hillside have been a familiar sight that most Brea residents have simply accepted as part of the local geography.
The 265 acres Aera controls on this site are not a single contiguous parcel. They represent an assemblage of oil field infrastructure and associated land holdings that Aera has operated over time. Converting this kind of land to residential use is a fundamentally different challenge from converting vacant land or underused commercial property. The soil and groundwater conditions on an active oil production site require investigation and remediation before residential construction can begin. California regulatory agencies, including the State Water Resources Control Board and the Department of Conservation's Geologic Energy Management Division, oversee the decommissioning of oil wells and the remediation of associated contamination. Aera's background as an oil company means it has in-house expertise in managing this process, but it also means the development timeline is partly governed by regulatory clearances rather than purely by construction schedules and market conditions.
The location has real advantages that offset the remediation complexity. The 91 Freeway provides direct access to the broader Orange County freeway network and to employment centers in Anaheim, Fullerton, and beyond. The Brea school district, which draws buyers from across North OC, serves the project area. And the hillside topography that makes the oil field less visually appealing as industrial land becomes an asset when the land is cleared and graded for residential use: the elevation changes create natural lot separation and view corridors that flat-land development cannot replicate.
What Brea 265 Includes: 1,100 Homes, 15 Acres of Parks, and 7 Miles of Trails
The Brea 265 Specific Plan organizes the 1,100 residential units across three density tiers that reflect the varying topography and character of different portions of the site. Lower-density parcels on the upper elevations with the best views carry single-family detached product targeted at move-up and premium buyers. Medium-density areas include attached and smaller-lot detached product appropriate for first-time buyers and downsizers. Higher-density areas near the freeway and the primary access points accommodate the project's apartment and affordable housing components.
Single-family detached
Upper elevations
Ocean and canyon views
Attached and small-lot
Mid-site areas
Move-up and first-time
Apartments and condos
Lower elevations
Includes affordable
Integrated into community
Dedicated senior housing
Income-restricted
| Project Name | Brea 265 |
|---|---|
| Developer | Aera Energy (Bakersfield, CA) |
| Site Area | 265 acres |
| Total Residential Units | 1,100 (301 low-density, 273 medium-density, 526 high-density) |
| Affordable Units | 76 units (includes dedicated senior affordable community) |
| Parks | 15 acres of new public parks |
| Trails | 7 miles of new trails connecting to regional networks |
| Brea Sports Park Expansion | Approximately 65 percent expansion (new fields, courts, playgrounds) |
| Location | North of the 91 Freeway, eastern Brea |
| City Council Approval | July 19, 2022 (Specific Plan) |
| Former Use | Active oil and gas production (Brea oil field) |
| RHNA Contribution | 1,100 units toward Brea's 2,365-unit 6th Cycle obligation |
Parks, Trails, and Sports: The Community Infrastructure Brea 265 Adds
One of the distinctive features of the Brea 265 plan is the commitment to public amenities that serve residents beyond the project boundaries. Master-planned communities routinely include private parks and amenities for their own residents. Brea 265 goes further by dedicating 15 acres of new public parks, adding 7 miles of trails connected to Brea's regional trail network, and expanding Brea Sports Park by approximately 65 percent.
Brea Sports Park is a heavily used community facility that has operated at or near capacity for years. The expansion adds new sports fields, courts, and playground areas that will benefit Brea residents citywide, not just the new residents of Brea 265. The trail connections are similarly city-serving: the 7 miles of new trails link the hillside community to existing trail segments and open up access to views and terrain that are currently on active oil land and inaccessible to the public.
The park and trail commitments are part of Aera's deal with the city. In exchange for entitlement to build 1,100 homes on land that previously generated oil revenue, Aera is delivering public infrastructure that the city values and that the existing park system cannot currently provide. This is a standard component of specific plan development agreements in California, where developers provide community benefits in exchange for the certainty and density allowances that a specific plan provides.
The affordable senior housing component is a separate and distinct element of the community benefit package. A dedicated senior affordable community within the Brea 265 development serves a resident population with specific housing needs that are not well addressed by either market-rate senior housing or general affordable housing. Senior housing at income-restricted rents in a new master-planned community with trail access and expanded park amenities is an unusual combination and reflects Aera's effort to address multiple segments of the housing need spectrum identified in Brea's 6th Cycle Housing Element.
Why an Oil Company Is Building 1,100 Homes
Aera Energy is not a homebuilder. Its core business is oil and gas production, and its operational expertise is in extracting hydrocarbons from California's oilfields, not in land development, construction management, or residential sales. The decision to develop Brea 265 as a residential community reflects a straightforward economic calculation: the value of 265 acres of Brea hillside as entitled residential land significantly exceeds its value as an oil production site, particularly as production from mature California fields continues to decline and as the regulatory environment for oil and gas operations in the state becomes increasingly restrictive.
Aera will not build the homes itself. The Specific Plan approval gives Aera the entitlement framework, meaning the land use approvals, density allowances, and development standards that govern what can be built and where. Actual homebuilding will be done by production builders who purchase fully entitled parcels from Aera in phases as the oil field remediation progresses and residential pads are prepared. This is a common structure for large master-planned communities where the landowner has the site but not the construction expertise or the sales infrastructure to build out the project directly.
The remediation process is the variable that makes Brea 265's timeline different from a conventional residential development. Wells must be decommissioned according to state regulations before residential construction can begin on each pad. Soil testing and, where required, soil remediation must be completed and verified by regulators. The sequence is determined by the oil field's operational status and the regulatory clearances received, not by builder preferences or market timing. This creates a phased delivery schedule that Aera controls but that external buyers and builders cannot fully accelerate. Early phases are expected to focus on the lower-density upper-elevation parcels where remediation is simpler and buyer interest in the view product is highest.
What Brea 265 Means for Buyers and the North OC Market
Brea 265 introduces a product type to the North OC market that does not currently exist: new single-family construction on hillside parcels with views, within the Brea Unified School District, and at a walking distance from 7 miles of trails and an expanded community sports park. That combination is genuinely scarce. Comparable hillside product in the Brea trade area means looking at La Habra Heights, Yorba Linda, or the hills above Anaheim Hills, all of which have their own school districts and price structures.
The move-up buyer who has accumulated equity in an existing Brea or North OC home and wants new construction is the natural first-phase customer for the low-density portions of Brea 265. This buyer has typically been forced to look outside Brea for new construction because the city's residential land has been substantially built out for decades. Brea 265 changes that. For the first time in a long time, a buyer who wants to stay in Brea and move up to a newer, larger home on a view lot has a local option.
The medium-density and high-density portions of the community will serve a different buyer and renter profile, one that is less focused on views and lot size and more focused on price point, proximity to the freeway, and access to the parks and trails. This segment of the project will compete more directly with new construction elsewhere in North OC and with the apartment pipeline at Brea Mall and Brea Plaza Living. Together, these projects are producing a range of residential product in Brea that the market has not seen in a single development cycle in the city's history.
The timeline for Brea 265 is the main uncertainty. Remediation-governed phasing means buyers interested in this community will need patience. The project was approved in 2022, and meaningful residential deliveries are a multi-year process. Buyers who want to purchase in Brea 265 should monitor Aera's builder partner announcements and the opening of model home complexes as the signal that a given phase is ready to sell. We will continue tracking the project as it progresses.
Interested in Brea 265 or New Construction in Brea?
Brea 265 is one of the most significant residential projects in North OC's current development pipeline. We track its progress along with the broader Brea and North OC market. Contact us if you want to be notified when phases open, or if you want to discuss what is currently available in Brea while you wait for Brea 265 to deliver.
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