"The site has now been deemed unsafe to build on." That was Sherry Hart-Panttaja, president of the Orange Park Acres Association, days after Orange voters delivered one of the most lopsided verdicts in the city's recent history: 63 percent against a 128-unit housing project on the old Sully-Miller gravel site, decided at the ballot box in November 2020.
For a neighborhood that trades on its rural character, that vote should have closed the book. It didn't. Earlier this year, the Orange City Council approved a memorandum of understanding with the same developer group, this time covering the Sully-Miller parcel plus two additional properties that sit inside Orange Park Acres itself. A resident who spoke at that hearing, Laurel Maldonado, asked the question the 2020 referendum never had to answer: how does a state law let a developer arrive at roughly 30 residences on land current zoning allows far fewer of, no matter what a specific plan or a public vote already decided.
That question is the real story here, and it matters to anyone comparing Orange Park Acres to other upper-moderate Orange County neighborhoods. The lesson isn't that this community keeps winning fights against developers. It's that winning one doesn't necessarily settle the question permanently, because a state housing law can run on a track that a local vote never touches.
A Site That Keeps Coming Back
The 109-acre parcel between Santiago Canyon Road and Mabury Avenue was a working sand and gravel operation from 1919 to 1995. Three plans adopted between 1971 and 1975, the Santiago Creek Greenbelt Plan, the Orange Park Acres Specific Plan, and the East Orange General Plan, set aside roughly 96 of those 109 acres as permanent open space once the mining ended.
"Permanent" turned out to mean something closer to "contested." Here's the pattern over two decades:
| Year | Proposal | Units Proposed | What Happened |
|---|---|---|---|
| 2003 | Fieldstone | 189 | City Council approved, then reversed after residents forced a referendum |
| 2009-2014 | Rio Santiago (Santiago Partners) | 450+, later reduced to 395 | Denied by City Council in 2014 |
| 2018-2019 | Trails at Santiago Creek (Milan) | 128 | Draft EIR released Feb 2018, called deficient by the public and agencies, recirculated Nov 2018, approved by City Council Oct 2019 |
| 2020 | Same project, put to voters | 128 | Rejected by 63 percent in the Measure AA referendum |
| 2026 | New MOU, same developer group, same site plus two adjacent OPA parcels | Roughly 30 via density bonus | Council approved the MOU; residents question why OPA wasn't part of the review |
Each round of this fight used a different vehicle: a City Council vote, a citizen referendum, an administrative denial. The 2026 round is the first to route around all three by working through a memorandum of understanding and a state density bonus calculation instead.
The Mechanism That Doesn't Ask Voters First
A density bonus is a state tool that lets a developer build more units than local zoning otherwise allows, typically in exchange for setting aside a share of those units at below-market rates. It exists independently of a city's general plan, a neighborhood's specific plan, and any referendum a community has already won.
That's the detail worth sitting with. Measure AA settled a rezoning question. It didn't settle a density bonus question, because density bonus law isn't a rezoning tool. It's a separate legal pathway that can produce a unit count a neighborhood never voted on and a specific plan never anticipated, on the same acreage the neighborhood thought it had already protected.
Maldonado's point at the council hearing wasn't abstract. Two of the three properties named in the 2026 MOU sit inside Orange Park Acres boundaries, and residents weren't part of reviewing the agreement before it was approved. For a neighborhood whose entire identity rests on a set of protections written into a 1970s specific plan, that's a meaningful gap. The plan can say one thing. A density bonus calculation can arrive at a different number, on a different timeline, without the same public process a rezoning requires.
What "Permanent" Has Actually Meant So Far
Not every fight over this land has ended in ambiguity. Ridgeline Country Club, a separate but adjacent parcel that once anchored the neighborhood's social life with 14 tennis courts and a nine-hole golf course, closed in 2006 when the same developer group bought it with plans to build homes on the open space. Residents fought that one through the courts instead of at the ballot box. The developer lost, all the way up to the California Supreme Court, and in 2017 the city formally reclassified the roughly 47-acre property back to open space. That designation has held.
Sully-Miller hasn't had an equivalent final ruling. It's had a City Council approval, a referendum defeat, and now a new procedural path that doesn't require either of those steps to repeat. The arena that sits directly across from the site, Sully-Miller Arena, built in 1992 and renamed in 2011 for longtime OPA director Mara Brandman, is running its normal fall schedule of monthly gymkhana shows this September, the kind of routine that makes the neighborhood feel settled even while the empty land next to it hasn't been.
Why This Matters If You're Comparing Neighborhoods, Not Just Prices
Orange Park Acres sits squarely in the upper-moderate band that draws move-up buyers to this part of Orange County, and its equestrian character, wide lots, bridle trails, and lack of sidewalks are exactly what buyers are paying for when they choose it over a more conventional suburban tract. That character has depended, in part, on a specific 109-acre parcel staying undeveloped for over two decades.
Most of Orange Park Acres is unaffected by any of this day to day. But for parcels closer to the Sully-Miller boundary, particularly in Mabury Ranch, Jamestown, The Reserve, and the two OPA-adjacent properties named in the 2026 MOU, this history is worth understanding before you assume the open land next door is a permanent feature of the view. A median price chart won't surface any of this. It only shows up if someone is actually tracking City Council agendas and community association updates, which is a different kind of homework than checking comparable sales.
What to Ask Before You Write an Offer
If you're looking at a property in or adjacent to Orange Park Acres, a few questions are worth raising with your agent before you get attached to a specific lot:
- Is this parcel one of the three named in the 2026 memorandum of understanding, or does it border the Sully-Miller site directly?
- What's the current status of any environmental review or entitlement process on the site, and where can that file be reviewed at the City of Orange?
- Has the Orange Park Acres Association posted an update on this specific proposal, since the association has tracked this fight longer and more closely than almost anyone else involved?
- Does the current proposal rely on a density bonus, and if so, does that mean the public vote that stopped the last version doesn't apply this time?
None of these questions should scare a buyer away from a neighborhood this many families have chosen for decades. They're the kind of due diligence that separates a buyer who understands what they're purchasing from one who's only seen the trail map and the parade photos.
A Few Things Buyers Ask About This Specific Site
Does this affect all of Orange Park Acres, or just certain streets? It's specific to parcels near the Sully-Miller boundary and the properties named in the 2026 MOU. Most of the neighborhood's housing stock, including the gated communities built in the 1970s like Broadmoor and Saddlehill, isn't adjacent to this fight.
How is a density bonus different from the rezoning question voters decided in 2020? Measure AA was a referendum on whether to rezone land for a specific project. A density bonus is a separate state mechanism that can allow additional units above what current zoning permits, and it doesn't require the same ballot process a rezoning vote does.
Is the site still being used for anything today? The property has sat largely undeveloped since mining ended in 1995, aside from the ongoing entitlement process. It isn't an active gravel operation.
If you're weighing Orange Park Acres against another Orange County neighborhood in this price range, the honest version of that comparison includes stories like this one, not just the median list price. I track these fights because they're the kind of detail that changes what a property is actually worth owning next to. If you want to talk through what any of this means for a specific street or parcel, Ryan Salloum is a phone call away, and a free home valuation is a good place to start that conversation.
