Definition and Measurement of Building Height

In Nevada City, building height is a critical regulatory component used to maintain the character and compatibility of the built environment across various zoning districts. The zoning ordinance provides a clear technical definition to ensure consistency in development applications and architectural planning.

Definition of Building Height

According to the zoning code, the "height of building" is defined as the vertical distance measured from the average level of the highest and lowest point of that portion of the lot covered by the building to the topmost point of the roof [Section 17.12.050].

Exclusions from Height Measurement

When calculating the height of a building for compliance with zoning district regulations, certain architectural elements are excluded from the measurement. The vertical distance to the topmost point of the roof does not include the following:

• Chimneys
• Elevators
• Ventilation equipment
• Air-conditioning equipment
• Parapet walls

Architects and designers should exclude these features when determining if a structure conforms to the maximum height limits designated for the specific zone in which the property is located [Section 17.12.050].

Considerations for Specific Zones

While the core definition provided in the definitions chapter applies generally, please note that individual zoning districts may have additional specific regulations or exceptions:

• AF, RR, R1, R2 Zones: Generally follow the standard height regulations and rely on the height definition in Section 17.12.050 [Sections 17.16.050, 17.20.050, 17.24.050, 17.28.050].
• R3 Zone: Specifies that the maximum building height is 40 feet or three stories, whichever is less [Section 17.30.050].
• GB Zone: Sets a height limit of 40 feet, with specific provisions to ensure the structure is not detrimental to the light, air, or privacy of other structures or out of character with the district [Section 17.40.050].
• LI Zone: Sets the height regulation at 40 feet [Section 17.48.050].
• Exceptions and Modifications: Section 17.84.030 allows for height limit exceptions for certain structures, such as barns, silos, church spires, belfries, domes, monuments, water towers, flagpoles, and radio transmission towers, provided they meet specific setback requirements. Height limits may also be increased for public buildings [Section 17.84.030].

Sections Cited

• Section 17.12.050 - Building, height of.
• Section 17.16.050 - Height regulations (AF zone).
• Section 17.20.050 - Height regulations (RR zone).
• Section 17.24.050 - Height regulations (R1 zone).
• Section 17.28.050 - Height regulations (R2 zone).
• Section 17.30.050 - Height regulations (R3 zone).
• Section 17.40.050 - Height regulations (GB zone).
• Section 17.48.050 - Height regulations (LI zone).
• Section 17.84.030 - Height limits.