Historic neighborhoods are cheaper and denser than new urban development.

In San Diego, historic districts are nearly twice as dense as other residential neighborhoods, challenging the conventional wisdom that new construction is the sole path to urban density. Many urban planners believe large-scale new construction is the only way to achieve density and affordability, often viewing historic areas as impediments. However, these neighborhoods frequently deliver these benefits more effectively and sustainably, leveraging existing infrastructure and community. Cities that overlook or dismantle historic assets for new development sacrifice inherent density, affordability, and unique economic advantages for less efficient, costlier alternatives, risking irreplaceable cultural heritage and established communities.

OB Rag reports that homes within San Diego's historic districts are approximately 25% smaller than the citywide average, with consistently lower median rents. Historic areas already offer attainable housing options, further challenging the notion that only new builds can address affordability.

The Costly Illusion of 'New is Always Better'

New construction's high cost often undermines its promise of urban solutions. Building a new house for under $130,000 without significant subsidies is impossible, according to theplanninglady. The impossibility of building a new house for under $130,000 without significant subsidies makes widespread affordability through new builds a major challenge for municipalities.

This focus on new development can also lead to the irreversible loss of valuable historic assets. For instance, a row of ancient stone walls in Niu Valley was demolished in February 2022, according to Honolulu Civil Beat to expand a driveway. Reports from Honolulu Civil Beat indicated that officials blamed each other for not knowing it was a sensitive site. The demolition of ancient stone walls and subsequent blame game reveals a critical municipal failure in awareness and coordination, leading to heritage destruction despite its proven value.

Theplanninglady's insight that new homes cost over $130,000 to build without subsidies, coupled with OB Rag's finding that historic homes are 25% smaller and cheaper, indicates that relying on new construction for affordable housing is a financially and environmentally unsustainable strategy compared to leveraging and adapting existing historic stock. The economic and cultural costs of demolishing historic structures often outweigh the perceived benefits of new builds.