William Castillo

William Castillo is a real estate agent with Firehouse Realty in Lagrangeville. MLS records credit William with 1 transaction over the last 12 months, worth $840,000 in total sales volume. Across both sides of the deal, that is an average of $840,000 per transaction.

All of William's MLS activity in this period is on the selling side, representing buyers: 1 buyer-side transaction for $840,000, or $840,000 on average.

Statewide, William is 10504th by volume among 14,678 New York agents with recorded sales.

In ZIP code 12540, the address on William's MLS record, the median sold price was $632,500 across 4 sales between June 2026 and July 2026. William's average transaction of $840,000 is about 1.3 times that median, which points to higher-priced homes than the ZIP code as a whole.

William is listed with Firehouse Realty, Lagrangeville. Other agents on the same office record, busiest first:

• Nicole Ferraro1 transaction · 470K volume

The numbers on this page come from public MLS and license records, last updated May 2026. Transaction counts and dollar volumes cover the last 12 months and are credited to the agent named on each record. William has not claimed this profile, and a listing here does not mean William or Firehouse Realty endorses or is affiliated with Expert Agents Near Me. We collect no reviews, so there are no ratings from us on this page.