For an economic rowhouse, what is the minimum lot frontage length required?

The minimum lot frontage length required for an economic rowhouse is generally established to ensure that each dwelling has adequate access and spacing from the street. A frontage of 4 meters meets the necessary standards for urban planning and development, allowing for appropriate access for residents while promoting proper utility connections and ensuring that the rowhouse can be constructed in compliance with zoning regulations.

A frontage of 4 meters balances the needs of the community with the practical requirements of residential buildings, fostering a sense of neighborhood while accommodating the design specifications typical for rowhouses. This dimension not only supports aesthetic considerations within a rowhouse context but also aligns with safety and functionality standards that govern building practices in urban settings.

The other options suggest widths that do not reflect the minimum necessary for practical residential use and city planning approvals, potentially leading to overcrowding or inadequate access.