What does a density bonus in zoning regulations allow?

A density bonus in zoning regulations allows developers to build more residential units than typically permitted under existing zoning laws, in exchange for providing certain benefits to the community. These benefits can include affordable housing units, public amenities, or other features that improve community welfare.

The rationale behind density bonuses is to incentivize developers to incorporate public good into their projects. By allowing for increased density, local governments aim to address housing shortages or specific community needs while ensuring that the development has a positive impact on the environment or on community services.

In contrast, the other options do not accurately reflect the purpose or function of a density bonus. Reducing safety standards would undermine community safety and quality of life, while immediate approval for subdivision plans doesn't usually relate to density bonuses, which involve negotiation and compliance with specific regulations. Similarly, exemption from environmental reviews would conflict with comprehensive planning and oversight that ensures development does not harm the environment. Thus, the primary focus of a density bonus is indeed the allowance for more units in exchange for community benefits.