Ask a homeowner on Heather Lane what protects the ocean view below their street and most will point to the height cap written into Del Mar's commercial zoning: 26 feet, the ceiling for the parcels that run along Jimmy Durante Boulevard beneath them. Ask what happens once a developer proposes affordable units as part of the design, and the honest answer is that 26 feet stops being the number that governs.
Del Mar already ran this experiment. A vacant lot at the corner of Jimmy Durante Boulevard and San Dieguito Drive once sat under a 14-foot height limit, the ceiling set by the city's Bluff, Slope, and Canyon Overlay Zone for that stretch of land, a limit still written into the municipal code today. A four-story, 50-unit building called Watermark now stands on that same lot at roughly 46 to 48 feet. The zoning line on the map never moved. State law required the city to move past it.
Watermark's path to approval ran through California's density bonus law, which lets a developer trade affordable units for concessions that would otherwise violate local zoning. The city granted four such waivers on this project: height rose from 14 feet to somewhere between 46 and 48 feet, floor area ratio jumped from 30 percent to 129 percent, lot coverage expanded from 40 percent to 51 percent, and the wetland buffer protecting the adjacent brackish marsh shrank from 100 feet to 50 feet. The developer shifted to this by-right path in 2021, after it became clear the council would not approve a smaller, discretionary version of the project, and the city approved the by-right permit in April 2022, which meant the usual discretionary review and public hearing process no longer applied.
Neighbors appealed the permit to the California Coastal Commission, arguing it conflicted with the city's Local Coastal Plan. In November 2023 the commission rejected those appeals and the project proceeded as approved. Ten of Watermark's 50 units are reserved for lower-income households, split across three income tiers. Those ten units are also the reason none of the other numbers held. Under state law, once a project clears the affordable housing threshold, the city loses most of its ability to say no to the height, the density, or the setback that follows.
The easy conclusion is that Watermark was a one-time anomaly, a single unlucky parcel near the lagoon. The city's own record says otherwise. Del Mar has already amended and upzoned its Central Commercial, North Commercial, and Professional Commercial zones to allow multifamily housing at 20 dwelling units per acre, a change that predates this year's overlay discussion entirely. City Manager Ashley Jones told the council in June 2026 that under the existing zoning, nobody is filing applications at all, and that the city has to build in additional accommodations or there is no incentive for anyone to develop. Council members openly acknowledged that developers already have the ability to bring density bonus projects to the seven sites under discussion whether or not the city adopts new site-specific standards for them. Councilmember Dan Quirk summed up the calculation bluntly, saying that setting site-specific standards is meant to minimize the overall footprint of a kind of project the city knows is otherwise coming.
That is the detail worth sitting with if you are pricing a home for its view or its quiet, low-rise surroundings near a commercial corridor anywhere in Del Mar. The overlay zone under discussion does not create the density bonus tool. It manages a legal reality that already exists across three separate commercial zones citywide, not only the seven parcels earning a spot on this year's map.
The council's June 15, 2026 discussion identified seven infill sites for the new Affordable Housing Overlay Zone: five along Jimmy Durante Boulevard just south of the San Dieguito Lagoon, and two along Camino Del Mar across from Shores Park. All five northern sites also sit within the city's floodplain overlay, the same condition that helped justify Watermark's height increase.
At base zoning, the Jimmy Durante sites are modest. At maximum density bonus, several change shape substantially:
The consulting firm Ascent, which prepared the analysis for the city, concluded that all five sites could be built to maximum density bonus without obstructing any scenic views. Several council members were not convinced, specifically because the study did not fully account for Heather Lane, the residential street sitting above the north commercial zone. Mayor Tracy Martinez put a number on what that disagreement means in practice:
"Height is really impactful. You're asking people, they could lose 25% of their property value. That's a huge deal for people."
Councilmember Terry Gaasterland pushed for a firmer ceiling, asking that height on these sites be capped at 30 feet rather than the 35 feet staff had recommended, a difference of one story on a corridor where every foot changes what a hillside home can see.
The clearest sign of how close this issue sits to actual homes is who had to leave the room. Mayor Martinez and council members John Spelich and Dan Quirk all live within 500 feet of three of the proposed sites, a proximity that triggers a conflict of interest under the city's own rules. Spelich was selected by name drawing to sit out the discussion on those three parcels entirely. When the people voting on a zoning change live close enough to be legally barred from voting on part of it, the stakes for everyone else on that street are not abstract.
A median price tells you what a home near this corridor sold for. It does not tell you whether the view or the low-rise skyline that justified part of that price sits on a foundation state law can shift. If you are weighing a Del Mar property against a comparable listing in Solana Beach or Encinitas, the question worth asking is not just what the current height limit says, but whether a commercially zoned parcel sits nearby, and whether that parcel could support a density bonus project that exceeds the number on today's zoning map.
Formal Planning Commission and City Council hearings on the new overlay and its accompanying amendments to the Local Coastal Program are expected by the end of 2026, as the city works to meet its state housing deadlines. That timeline matters for anyone under contract or considering an offer this year. The specific heights on these seven sites are still being negotiated. The underlying tool that made Watermark possible is not up for debate. It is state law, and it already applies.
Does this only affect the seven sites named in the overlay? No. Del Mar has already upzoned its Central Commercial, North Commercial, and Professional Commercial zones to allow multifamily housing at 20 dwelling units per acre, and council members acknowledged that density bonus projects are already possible on the seven identified sites regardless of whether new site-specific standards are adopted. The overlay creates a framework for these seven locations. It does not grant new power that did not already exist.
What does density bonus law actually require a city to do? When a residential project sets aside a defined share of units for lower-income households, state law requires the city to grant waivers or concessions, such as increased height, floor area, or density, if the city's normal standards would otherwise make the affordable units infeasible to build. Cities retain very little discretion once a project qualifies.
When will the new overlay zone be finalized? The city expects formal Planning Commission and City Council hearings by the end of 2026, with amendments to the Local Coastal Program required to meet state deadlines.
If you're weighing a purchase near a commercial corridor anywhere in Del Mar, Solana Beach, or the surrounding coast, the zoning map is a starting point, not a guarantee. Polly Rogers & Associates has spent decades reading these corridors block by block. Request a Complimentary Market Consultation before you assume a view is protected by more than a line on a map.