Until this spring, a second guesthouse on a Palm Beach estate needed a zoning variance and a Town Council vote. On May 13, 2026, the Town adopted Ordinance No. 14-2026, which removes that step for lots of at least 60,000 square feet in three residential districts. The ordinance also adds a condition that does more of the sorting than the acreage does. The extra building is allowed only when "a variance is not needed to accommodate" it.
So the 1.4-acre figure is where eligibility starts, and it doesn't settle anything on its own. Two estates of the same size on the same street can come out differently under this rule. It depends on where the main house, the pool, the existing guest quarters and the building lines already sit. For anyone pricing a large lot on the island this season, the right to add a structure now comes from the site plan, and a survey can show it before a contract is signed.
The Palmerial Vote That Wrote the Rule
The ordinance came out of a single case. In February 2026, the Town Council approved a second guesthouse at Palmerial, a landmarked estate whose 1929 mansion was designed by Maurice Fatio. As the Palm Beach Daily News reported, a majority of the council agreed with the owners that more than two acres was room enough for three structures. The estate covers 2.5 acres on South County Road in the Estate Section. The vote was 5-2, with council members Ted Cooney and Julie Araskog voting no.
During that review, the council said it would support an additional guesthouse as long as it was tied to lot area. The ordinance then moved through these steps:
- February 11, 2026. At a Development Review meeting, the Town Council directed staff to amend the zoning code "to allow additional guest houses based on lot area."
- April 7, 2026. The Planning and Zoning Commission took up the draft ordinance.
- April 15, 2026. The council approved it on first reading, one of three zoning ordinances passed that night, according to the Palm Beach Daily News.
- May 13, 2026. The ordinance was adopted on second and final reading.
- July 2026. The Town's newsletter listed Ordinance No. 014-2026 among recently codified ordinances.
When the draft was first reported, the Daily News said that if adopted it would rank among the most notable changes since the Town began updating its aging zoning code. That broader rewrite is still being done in pieces. Reporting at the end of the 2026 season described ongoing amendments to the 1974 code, not a comprehensive replacement. This ordinance is one of the finished pieces.
What Changed, Provision by Provision
| Before May 2026 | Under Ordinance No. 14-2026 | |
|---|---|---|
| Guesthouses allowed by right | One enclosed accessory building with bedrooms and baths | One, plus one additional on qualifying lots |
| Path to a second guesthouse | Zoning variance and council approval | Standard approval process, no variance permitted |
| Minimum lot area for the second | Not applicable | 60,000 square feet, about 1.4 acres |
| Districts covered | Not applicable | R-AA Large Estate, R-A Estate, R-B Low Density |
| Who may stay there | Nonpaying guests, family, household staff | Same |
| Kitchen | Only with a written agreement and director approval | Same, applied to both structures |
The table draws on the text of Ordinance No. 14-2026 and the Palm Beach Daily News account of the rule it replaced. The rule also covers an owner adding a second guesthouse to a property that already has one, so it reaches existing estates as well as new construction.
The Clause That Decides Which Lots Qualify
The operative sentence in each district section reads:
One (1) additional enclosed accessory building is permitted when the lot area has a minimum of 60,000 square feet, and a variance is not needed to accommodate such additional enclosed building.
The base provision it amends already required guest accommodations to sit "within the building lines as provided in this chapter." The ordinance adds no guesthouse-specific size cap or new setback. It relies on the dimensional rules that already apply to the lot. As the Daily News put it, these guesthouse applications "could not be tied to any variance request."
That changes what the threshold means in practice. On a lot where the main house, pool pavilion and existing guest quarters already fill most of the buildable area, a third structure may not fit without relief from a setback or bulk rule. If it needs relief, the owner is back in the variance process the ordinance was meant to bypass. On a lot of the same size with more open area inside the building lines, the right is close to administrative. The town's own business impact estimate says accessory structures will continue through existing permitting processes.
Palmerial went through the old process and needed a council vote. The new rule covers the easier cases, where the lot already has room.
This is also why we are not putting district coverage percentages or setback distances in this article. The online code on Municode is codified only through an ordinance enacted February 11, 2026, so it does not yet reflect this change, and the dimensional tables are the part a survey and an architect have to confirm for each lot. The test is specific to each site.
Who the Second Building Is For
Once a lot qualifies, the use rules limit what the extra building adds. Each enclosed accessory building may be occupied only by "nonpaying guests of the owners of the main residence or bona fide members of the family" or household staff.
Kitchens are not allowed unless the owner submits a written agreement with the Town confirming that use and gets approval from the planning, zoning and building director or a designee. Our review of the ordinance and the impact estimate found no separate clause on selling the structure. The occupancy language already rules out paying tenants.
So a second guesthouse here adds room for visiting family, a resident household manager, or staff for a large house. For a buyer, that space is another feature to consider. For a seller, it is household capacity worth documenting in the listing file.
Reading a Large Lot Before It Is Priced
The rule has a short public record. A June 10, 2026 Town Council agenda we reviewed listed variance items but no second-guesthouse application. The public reporting we reviewed through early October 2026 does not identify an owner who has built under the new rule. So there are not yet any comparable sales that price this right, and that puts more weight on checking each lot directly.
For an estate of 60,000 square feet or more, these documents show whether the right is usable:
- A current survey with the building lines drawn. It shows the open area left after the existing structures.
- The zoning district. The rule applies only in R-AA, R-A and R-B.
- An architect's test fit. It should show a third structure within existing setback and bulk limits, with no variance assumed.
- Landmark status. Palmerial is landmarked, and the ordinance does not say it exempts any property from design review it already faces.
- Any existing kitchen agreements on guest quarters already on the property.
- The ordinance text from the Town, since the online code lags behind it.
When a seller's file includes a survey and a test fit showing the second guesthouse fits within the rules, the lot is marketed with a right buyers can verify. Without them, a buyer is left assuming the right exists.
Questions Owners Are Asking
Does the rule apply if the estate already has a guesthouse? Yes. The ordinance covers adding a second guesthouse to a property that already has one, as long as the lot meets the area minimum and no variance is required.
Is this part of a finished new zoning code? No. Since December 2024, Town planning staff have led the code reform, after the council moved drafting away from consultant ZoneCo. Changes have been adopted one ordinance at a time, and this is one of them.
Can a lot just under 60,000 square feet still get a second guesthouse? The ordinance does not cover it. The only route mentioned in the reporting is the variance process the rule was written to avoid.
This article is general information about how the ordinance works, not legal, tax or financial advice. Owners and buyers should confirm how it applies to a particular property with a land use attorney and their architect.
If you own or are considering an estate of 1.4 acres or more on the island, Samantha Sells Palm Beach can review the survey and the second-guesthouse question with you before the lot is priced or offered. Request a Confidential Market Consultation.
