112 Seminole Avenue, Palm Beach, FL 33480

Significance

The William Gray Warden House was built in 1922 for William Gray Warden and is attributed to Addison Mizner, with the National Park Service record also naming Cooper G. Lightbown. The sources reviewed describe it as Mediterranean Revival and Spanish Colonial Revival. It was listed on the National Register of Historic Places on 1 August 1984 under reference number 84000940, with a stated period of significance of 1900 to 1924, and the digitized nomination form and photographs remain available through NPGallery. A secondary source reports that the developer and preservationist Robert Eigelberger restored the house and converted it to a six unit condominium, but that account could not be verified through a directly retrieved primary source. No Town of Palm Beach landmark confirmation was obtained, because the Town's landmark list was not retrievable.

Documented timeline

1. 1922

   Built for William Gray Warden

   The house was built in 1922 for William Gray Warden, attributed to Addison Mizner. The National Park Service record also names Cooper G. Lightbown.[1][2]

2. 1984

   Listed on the National Register of Historic Places

   The house was listed on 1 August 1984 under reference number 84000940, with a period of significance of 1900 to 1924. The nomination form and photographs are held as digitized assets on NPGallery.[1][2][5]

3. c. 1977 to the mid 1980s

   Restoration and conversion to condominium

   Robert Eigelberger is reported to have restored the house and converted it to a six unit condominium known as the Warden House Condominiums. One account dates this to approximately 1977 and another to by the mid 1980s. This is per a secondary source, not independently verified; the source did not load when checked.[3]

4. 2026

   Condominium units marketed by aggregators

   As of the September 2026 review, a brokerage aggregator page presents a Warden House condominium community among In Town Palm Beach condominiums, citing an average listed sale price of roughly $2,800,000 for individual units. The page was not retrieved directly, so this is per a secondary source, not independently verified, and no specific unit, price, or date could be tied to 112 Seminole Avenue.[4]

Ownership of record

The original owner of record is William Gray Warden. Robert Eigelberger is reported to have restored and converted the house, per a secondary source that was not independently verified. The property is reported as a multi-unit condominium, so no single owner of record applies; that report is low confidence, and no Palm Beach County parcel control number specific to 112 Seminole Avenue could be retrieved for this dossier. Current occupants are not identified; this dossier describes recorded and reported transactions only.

Current status

Condominium units are marketed by aggregators; no verified current listing tied to this address as of September 2026.

Buyer diligence

• The house is listed on the National Register of Historic Places under reference 84000940. Confirm separately with the Town of Palm Beach whether it also carries Town landmark designation, because it is Town designation that places exterior changes under Landmarks Preservation Commission review.
• If the property is Town designated, the Town of Palm Beach offers an ad valorem tax exemption for qualifying rehabilitation of landmarked property. Confirm eligibility and procedure directly with the Town; no figures are quoted here.
• Because the property is reported as a condominium, obtain the declaration, bylaws, rules, budget, reserve study, reserve balance, and any special assessment history before proceeding on a unit.
• Establish how the association allocates responsibility for the historic exterior envelope, roof, and windows, and what association approval a unit level renovation requires on a National Register building.
• Obtain the current FEMA flood zone designation and any elevation certificate for the building, and confirm what flood coverage the association carries versus what a unit owner must carry.
• Confirm the parcel control number, legal description, and unit level deed chain directly with the Palm Beach County Property Appraiser and the Clerk and Comptroller, since no parcel record for this address was retrievable for this dossier.

What the record cannot show

• The date, scope, and terms of the reported condominium conversion, which rests on a secondary source that was not independently verified.
• Unit level ownership, pricing, or current listing status tied specifically to 112 Seminole Avenue.
• The association's true financial position, including underfunded reserves or pending litigation, which no deed or appraiser record reports.
• How much original fabric survives inside individual units following restoration and conversion.