Protesters outside the Whittier Elementary School field house during its demolition in August.

Nine activists arrested during an August protest at a Near West Side school building have been found not guilty of trespassing.

The nine, who range in age from 23 to 58, were acquitted Friday of trespassing charges stemming from a protest against demolition of the Whittier Elementary School field house at 1900 W. 23rd Street in the Pilsen neighborhood.

Opponents of the demolition had hoped a series of protests would bring community residents a greater say in the decision-making process. Chicago Public Schools officials said the building was no longer structurally safe and that the demolition would be followed by construction of a playground, artificial turf field and two basketball courts.

The field house, which community residents knew as La Casita, was demolished as planned following the arrests.

chicagobreaking@tribune.com | Twitter: @ChicagoBreaking