According to NAHB analysis of the most recent Census data of Starts and Completions by Purpose and Design, townhouse construction starts continue to post gains. Over the last four quarters (ending with the first quarter of 2018), townhouse starts totaled 105,000, 7% higher than the prior four quarters. Townhouses, or single-family attached housing, accounted for 21,000 starts during the first quarter of 2018, although that was a slight decline from 22,000 recorded at the start of 2017.
Source: NAHB Eye On Housing