The houses in the 300 block North Carrolton Ave. in Baltimore were built in the Italianate or Ango-Italianate style. Italianate style was the most popular row house style from the mid 1800s to 1900. Characterized by beautiful, ornate cornices; tall, narrow windows; rounded or arched doorways; and heavy, projecting lintels, Italiante shows a graceful facade. Anglo-Italianate features similar attributes but has a lower stoop with 3 - 5 steps while Italianate has a taller stoop. The lintels are not as heavy with the Ango-Italianate style.
Some of the homes in that stretch of road are covered with Formstone, a type of faux stone made with concrete. There were many producers of the fake stone but Formstone itself was patented in 1937. John Waters once called it "the polyester of brick." While some folks detest the facade, others find it a charming, distinctive part of Baltimore heritage.
Removing Formstone can be a problem. While the removal itself is not too difficult, it's what's under it that can be troublesome. Sometimes, when they put the Formstone up, they removed prominent architectural features. The fake stone can often cover a multitude of problems like damaged or mismatched brick, or damaged masonry. The restoration can be difficult and costly.