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Chapter 2§9227 HISTORICAL BUILDING STANDARDS

§9227.1 HISTORICAL BUILDING STANDARDS

Ukiah Zoning Code · 2026-07 edition · updated 2026-07-07 · Ukiah

All proposed modifications to buildings listed on the City’s Historical and Architectural Inventory or buildings that are more than fifty (50) years old shall comply with the standards in Table 13. The age of the building shall be supported by documentation that is acceptable to the review authority (Planning Commission, Zoning Administrator, Planning Department).

Table 13: Historical Building Standards

Table 13: Historical Building Standards
STANDARDS ALL ZONES MODIFICATION
TO STANDARD
MODIFICATIONS AND DEMOLITION
Additions New additions shall be designed and
constructed so that the character-defining
features of the historic building are not
radically changed, obscured, damaged, or
destroyed in the process of rehabilitation.
New design should always be clearly
differentiated so that the addition does not
appear to be part of the historic resource.
Major Exception
Demolition (as defined
by subsection 3016A of
this code)
Allowed only with City Council approval
consistent with section 3016 of this code.
section 3016 of
this code
Facade Modification –
Significant
Allowed only with City Council approval
consistent with section 3016 of this code.
section 3016 of
this code
Improvement –
Rehabilitation,
Restoration,
Preservation,
Reconstruction
Reflect a period of the building’s
development consistent with its historical,
cultural, or architectural importance or
interest.
Major Exception
Residential Building –
Conversion of Use
Preserve the residential characteristics of
the building’s original architecture.
Major Exception
Residential Building –
Renovation
Preserve residential characteristics of the
building’s original architecture.
Major Exception
Structural Modification
– Major
Preserve the building facade if the building
cannot be preserved.
Major Exception
STOREFRONTS
Existing Original Retain original location, proportion, and
details.
Major Exception
Restore Original When the original storefront has been
removed or significantly modified, restore
the original storefront. The restoration
shall be based on documentation of the
design of the original storefront.
Where no documentation exists, the design
may be based on documentation of the
design of the storefront for similar
buildings of the same era.
Major Exception
New Where no documentation of the original
exists, traditional or modern design and
materials may be proposed provided they
do not detract from the building or
neighboring properties.
Major Exception
Proportions – Original Maintain when performing a rehabilitation,
restoration, preservation or reconstruction.
Major Exception
DOORS
Original – Existing Original door openings and trim on facades
shall be maintained in their unaltered
condition.
Major Exception
(3)
Original – Restore When the original door(s) have been
relocated, replaced, or modified, doors
consistent with the original historic doors
may be approved with documentation of
the original doors.
Major Exception
(3)
Modification to
Original
Elimination, addition, or modification of
the original size, location, and shape of
facade door openings isprohibited.
Major Exception
(3)
Replacement – Design The design of replacement doors shall
reflect the character and style of the
building.
Major Exception
STANDARDS ALL ZONES MODIFICATION
TO STANDARD
Replacement –
Materials
Replacement of original materials shall be
in-kind materials.
Replacement of nonoriginal materials shall
be compatible with the materials for the
building.
Major Exception
WINDOWS
Openings –
Elimination and
Addition
Elimination of existing and addition of new
openings is prohibited on facades and
highly visible elevations.
Major Exception
(3)
Original Maintain and repair original openings, trim
and anyshutters.
Major Exception
Replacement –
Nonoriginal Windows
Modification to the opening is prohibited.
When the opening is in its original location,
modification of the opening is prohibited.
Based on documentation, the opening may
be modified or relocated to restore the
original window opening(s).
Major Exception
Replacement Materials
– Nonoriginal
Windows
Shall be compatible with the existing
building. Alternate materials may be
considered if they are of similar appearance
and fit the opening properly.
Major Exception
Replacement –
Original Windows
On the facades, the size, dimensions, shape,
design, pattern, and materials shall match
the original.
Major Exception
Replacement Materials
– Original Windows
Materials for the window, trim, and any
shutters shall be the same as the original.
Major Exception
AWNINGS AND CANOPIES
Design Design shall be based on evidence that the
design was previously installed on the
building and/or is typical for a building of
the same style and era.
Major Exception
Lighting Back lighting and internal illumination are
prohibited.
Major Exception
Location The location shall not cover important
architectural features.
Major Exception
Proportion The proportion shall be designed to fit
window openings.
Major Exception
Materials Materials shall be those typically used for
awnings for a building of the specific design
and era associated with the building.
Typical materials include cloth, metal and
wood.
Major Exception
Storefront The configuration and proportions shall be
compatible with the design of the storefront
and shall not overpower the building.
Major Exception
SIDING
Masonry Retain and restore existing siding.
Repair siding with in-kind materials.
Major Exception
Masonry –
Replacement
Use salvage material to replace siding.
When salvage material is not available, new
materials shall match the original in size,
color,uniformityand texture.
Major Exception
Nonmasonry Repair and restore existing using the
original wood siding or in-kind salvage
material.
When salvage is not available, new material
(such as wood, cement fiber, fiberglass,
vinyl), shall match the dimensions, overlap,
and surface texture of the original wood
siding.
Major Exception
Table 13: Historical Building Standards
STANDARDS ALL ZONES MODIFICATION
TO STANDARD
Trim and Details Do not cover original trim and details. Major Exception
TRIM AND ORNAMENTATION
Missing Original –
Decorative Details
Replicate from documentation of original
details.
When documentation is not available,
replicate based on details from buildings of
a similar design and era.
Major Exception
New – Trim and
Decorative Elements
Shall not cover original details. Major Exception
Original – Cornice,
Trim and Decorative
Elements
On front and side facades, restore and
repair in kind.
When replacement is necessary, replicate
using in-kind materials.
Major Exception
ROOFS AND ROOF LINES
Chimney Retain original when it contributes to the
character of the roof.
Minor Exception
Mechanical and Service
Equipment
Locate to eliminate visibility from frontages
and public ways.
Minor Exception
New Retain existing roof slopes and shapes for
areas visible from frontages.
Major Exception
New – Modified Slope
for a Flat Roof
Allowed for a problem flat roof when not
visible from a frontage and does not impact
the character of the building.
Minor Exception
RENOVATION FOR ACCESSIBILITY (1)
Lifts and Ramps Incorporate into another feature, screen
with landscape, and/or finish to match the
adjoining materials.
Major Exception
Materials – General Materials shall be compatible with the
building’s original materials.
Major Exception
Materials – Handrail Materials shall be metal or wood. Wire and
cable are prohibited.
Major Exception
Materials – Wood Wood shall be painted or stained to match
the building.
Major Exception
Openings and Ramps
(2)
Openings and ramps shall be located and
designed to minimize impact on the
historic and architecturally significant
materials and character definingfeatures.
Major Exception
PORCH
(Not an approved frontage type – See Table 6 and section 9225.6 of this code)
Original Retain and repair the original with in-kind
materials.
Major Exception
Original – Alterations Minimize the effects of alterations on the
historic character.
Major Exception
Original – Rebuilding Replicate the original porch design, shape,
materials, and details.
Major Exception
Original –
Replacement of
Missing
Replacement of missing porch is allowed
with documentation of the original porch.
The replacement porch shall restore the
design, shape, materials, and details of the
original.
Refer to process
for modification to
frontage type in
Table 6
1. Renovations required to provide accessibility in compliance with the Americans with
Disabilities Act.
2. If access to the primary entrance cannot be provided without degrading the significant
architectural features, access should be provided through an alternate entrance.
3. When allowed by major exception, the alterations shall minimize the impact to the
historic character of the building.

(Ord. 1139, §2 (Exh. A, 8.010), adopted 2012)

§9228 PARKING STANDARDS AND PROCEDURES

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