WHAT IS A NSO
The Neighborhood Stabilization Overlay (NSO) is a zoning tool used by the City of Dallas to help preserve the established character of single-family neighborhoods. It works by implementing neighborhood-specific regulations focused on restricting such elements such as:
•    Yard setbacks
•    Building heights
•    Garage placement and accessibility
Rather than changing the underlying zoning, the NSO acts as an overlay that adds additional, targeted restrictions. These guidelines are designed to ensure new construction is compatible with the existing scale and character of the neighborhood. The intent is to maintain a consistent look and feel, protecting the stability, character, and livability of Dallas neighborhoods. An NSO is typically applied when it is established that new, incompatible single-family development would negatively impact the neighborhood’s identity or disrupt its existing built character. It provides a minimal but effective framework to guide future development in a way that aligns with community expectations of maintaining existing built environment. It is meant to regulate and guide future developments in ways that preserve the long-term stability and character of established single-family neighborhoods. Unlike a Historic District or a Conservation District, an NSO is less restrictive and imposes fewer regulations. It does not alter the underlying base zoning or permitted land uses. Instead, it introduces additional guidelines to ensure that new construction, renovations, and expansions are compatible with the existing homes in the area. The primary goal of an NSO is to help retain the distinctive character of a single-family neighborhood by allowing for thoughtful and compatible growth. It is designed to prevent development that is out of scale or incompatible with the surrounding homes — without being overly restrictive.

NSO Process
The Neighborhood Committee is responsible for collecting detailed data on each property within the proposed NSO area. The data collected will support the development of additional standards for regulating setbacks, building heights, location and orientation of garages as well as other aspects of neighborhood character and site planning. Committee members have been trained by City staff on proper data collection techniques including:
•    How to measure setbacks accurately (from property line to structure)
•    Determining building height (from grade to roof peak or midpoint, per code)
•    Recording garage placement and orientation
•    Using standardized forms for consistency

Data Collection Timeline:
•    Start Date: February 11, 2026
•    Deadline: August 11, 2026
•    Duration: Up to 6 months to complete data collection

View  Process & Data Collection Guidelines here