BreakThru Realty

San Castle Homes for Sale in Lantana

Know San Castle before you buy there: what homes sell for, what they cost to own and how to make the right offer.

Unincorporated streets near Seacrest Boulevard. Every home currently for sale in San Castle, Lantana, straight from BeachesMLS and updated throughout the day.

San Castle is a neighborhood of single family houses from the late fifties to the early eighties in unincorporated Palm Beach County near Seacrest Boulevard, on streets with plant names such as Ficus Tree Drive, Seagrape Road and Frangipani Circle, and its homes carry a Lantana address. Lots are generous for the price, and some owners have added large garages or a second unit, which is why one current listing is filed as a duplex. Because it lies outside the town, permits, code and services follow Palm Beach County rather than Lantana. Ask for the roof age, the permits for any garage or added unit, the zoning of the lot and whether the house is on sewer or septic.

San Castle Market at a Glance

Updated October 30, 2026 from BeachesMLS: homes and condos in San Castle, Lantana.

Active listings2
Median list price$402,000
Median list price per sq ft$328/sq ft
Average days on market64 days
Sold in the last 180 days4
Median sold price (180 days)$347,500
Median sold price per sq ft$335/sq ft
Average days to sell20 days
Sale price as % of list price93%
Months of inventory3 months
Median sold price vs. a year ago+30.7%

Source: BeachesMLS, listings whose subdivision or remarks name San Castle. Sold figures cover closings in the last 180 days, compared with the same 180 days one year earlier. Not an appraisal.

2 listings, newest first.

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Own a Home in San Castle?

Your buyer may already be looking in San Castle. BreakThru Realty works with hundreds of prequalified buyers searching for properties. We review the recent San Castle sales, your home's features and whether it fits what a buyer working with us has asked for, then build the plan that reaches the rest of the market if none does.

  • A value range built from comparable San Castle, Lantana sales, with the reasoning
  • Whether a buyer already working with BreakThru Realty is looking for a property like yours
  • The plan that reaches the rest of the market if no buyer on file fits
  • An estimate of your selling costs and what you would keep after closing
  • Your timing, privacy and goals, worked through before anything is listed

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