$10,000 40 ft frontage and 142 ft deep. This lot used to have a duplex on it, but it was removed. Great opportunity to have the option to build a new duplex, or single-family residence. Potential to add parking on the back side of the lot, as the back side of the property slopes down to the alley. 26048275 MLS ⋅ ACTIVE Status 40 ft frontage and 142 ft deep. This lot used to have a duplex on it, but it was removed. Great opportunity to have the option to build a new duplex, or single-family residence. Potential to add parking on the back side of the lot, as the back side of the property slopes down to the alley. 4459 Grace Ave, St Louis