Donde esta la escuela

There is a couple of small mistakes in the sentence. . It is very important to note the accents in written Spanish. "Esta" means "this" referring to a feminine subject. "Está" is the third person singular present conjugation of the verb "estar", meaning "to be". "Casa" is a feminine noun in Spanish, so the article must be "la", not "el". "¿Dónde está la casa?" means "Where is the house?".