How are townhouses typically constructed?

Townhouses are typically constructed in a way that connects them to other units, often in sets of three or more. This design allows for a dense housing development while still providing individual properties for ownership. Each townhouse usually shares at least one wall with another unit, which is a distinctive feature of this type of construction. This grouping can enhance both community living and shared infrastructure, while still preserving the benefits of individual home ownership. Additionally, the design often follows a uniform architectural style which can create a cohesive look in a neighborhood.

While the other options highlight characteristics that can be associated with townhouses, they do not accurately capture the essence of how townhouses are constructed. Common elements might be present, and shared land may exist, but these are not defining features of their construction method. Classification as detached homes does not apply since townhouses, by definition, are attached.