Page 212 - Healdsburg, CA Citywide Design Guidelines

Figure 8.13: Designing an Addition to a Historic Structure

An addition to a property in a local historic district, or noted as a designated or non-designated
historic resource shall comply with the following and should be clearly differentiated from the
original structure and be subordinately scaled as illustrated below.

Original Structure Birds Eye View Street View
The one-and-a-half story bungalow
illustrated at the right is a
contributing structure in a locally-
designated historic district.

One-Story Attached
Addition

The one-and-a-half story bungalow
illustrated at the right is a
contributing structure in a locally-
designated historic district.

One and a Half Story
Addition with Connector

The one-and-a-half story addition
illustrated at right is appropriate
because it is set back and clearly
differentiated from the original
structure with a connector.

“Camelback” Style
Rooftop Addition
The roof-top addition illustrated
at right is appropriate because it
is substantially set back from the
street.

Inappropriate Two-Story
Rooftop Addition

The roof-top addition illustrated
at right is inappropriate because
it substantially alters the primary
façade of the historic structure.

Note: most of these images are provided to represent acceptable form and site design, not levels
of acceptable architectural finish and articulation.

204 Healdsburg Citywide Design Guidelines