Certificate of Appropriateness in St. Petersburg: What Homeowners Need to Know

If your property sits in Old Northeast, Historic Kenwood, Mirror Lake, Roser Park, or another locally designated historic area in St. Petersburg, your design process may involve an additional step that many homeowners don't discover until they're already planning a renovation: a Certificate of Appropriateness (COA).

A COA is part of St. Petersburg's historic preservation review process. Depending on the property's designation and the work you're proposing, it can affect exterior alterations, additions, demolitions, and other changes to a historic property.

Understanding the process before you finalize your plans can help you avoid designing something that later needs to be substantially revised.

Local Historic District vs. National Register: What's the Difference?

One of the first things homeowners should determine is whether their property is located within a locally designated historic district.

St. Petersburg has properties and areas associated with the National Register of Historic Places, as well as locally designated historic districts. These designations are not interchangeable, and the applicable review process depends on the property's specific designation.

Local historic districts are established through the city's local preservation regulations and can involve design review for certain exterior changes.

St. Petersburg's locally designated historic areas include parts of communities such as Old Northeast, Historic Kenwood, and Mirror Lake, among others. The city maintains information and mapping resources that homeowners can use to determine whether a property falls within a locally designated area.

Before assuming that a renovation is exempt from historic review, check the property's status with the City of St. Petersburg's Historic Preservation program.

What Is a Certificate of Appropriateness?

A Certificate of Appropriateness is part of the city's historic preservation review process for certain work involving locally designated historic properties and districts.

The purpose is not simply to decide whether a project looks attractive. Historic review considers whether proposed changes are compatible with the architectural character and historic features that contribute to the significance of a property or district.

Depending on the property and scope of work, exterior changes that may require review can include:

• Additions

• Changes to exterior walls

• Alterations to roofs

• Window and door changes

• Demolition

• Relocation of structures

• Certain changes to exterior materials or features

The exact requirements depend on the property's designation and the proposed work. That's why checking the project with the city's preservation staff early can be more useful than assuming that every renovation follows the same process.

Does Every Historic Property Need the Same Level of Review?

No.

The review process can depend on several factors, including whether the property is individually designated, whether it contributes to the historic character of the district, and what type of work is proposed.

A contributing structure generally has historic significance within the district, while a noncontributing structure does not contribute in the same way to the district's historic character.

That distinction can affect how proposed changes are evaluated.

For a homeowner, this means that knowing your property's designation status before developing detailed architectural design plans can save time later.

How Historic District Design Guidelines Affect Your Project

St. Petersburg's historic preservation guidelines provide a framework for evaluating changes to historic properties.

The goal isn't necessarily to make every new addition look exactly like the original house.

Instead, the design needs to consider factors such as scale, proportion, materials, placement, and the relationship between the historic structure and the proposed new work.

For an addition, for example, several design considerations can become especially important.

Where the Addition Is Located

An addition that is highly visible from the street may receive more scrutiny than work located toward the rear of the property.

For historic homes, preserving the character of the primary street-facing elevation can be an important part of the design strategy.

That doesn't mean every addition must be hidden. It means the location of the new construction should be considered as part of the overall historic context.

How the New Work Relates to the Existing Home

A new addition doesn't necessarily need to copy the historic structure detail for detail.

Instead, the design can use compatible proportions, materials, scale, and architectural elements while still allowing the new portion of the building to read as a later addition.

This balance is especially important when planning a historic home addition in St. Petersburg.

Which Historic Features Are Being Preserved?

Some features may contribute significantly to the character of a historic property.

Original windows, porches, rooflines, entry features, masonry, and other architectural details can all influence how a proposed renovation is evaluated.

Before removing or substantially changing an exterior feature, determine whether it has historic significance and whether the proposed change requires review.

What About Renovating a Historic Home?

A historic designation doesn't necessarily mean that you can't modernize your home.

Homeowners may still want to update kitchens, bathrooms, electrical systems, layouts, accessibility, energy performance, or other aspects of an older property.

The challenge is determining how those improvements can be incorporated while respecting the features that contribute to the property's historic character.

For example, a homeowner may want to expand the back of a historic house while preserving the original front elevation. In that situation, the design can focus the new square footage toward the rear while maintaining the visual character of the portion of the home that faces the street.

This is where historic home renovation requires more planning than a typical interior remodel.

Don't Forget the Site Around the House

Historic preservation considerations aren't always limited to the building itself.

St. Petersburg has historic streetscapes and site features that can contribute to the character of certain neighborhoods. Depending on the location and project, changes to driveways, landscaping, sidewalks, access, or other exterior site elements may require additional review.

This is another reason to evaluate the property as a whole before finalizing a renovation or addition.

If your project includes substantial site changes, your site plan should account for the property's existing conditions and applicable local requirements from the beginning.

When Should You Start the COA Process?

Ideally, historic preservation considerations should be addressed during the early design stage—not after the construction drawings are complete.

A common problem is finalizing a design and then discovering that the proposed exterior changes require historic review. If the reviewing authority requests modifications, those changes may affect architectural drawings, structural documentation, materials, elevations, or other parts of the project.

Starting earlier gives the design team an opportunity to incorporate those requirements before the plans are finalized.

For projects that may require historic review, a pre-application discussion with the city's preservation staff can also help clarify the applicable process before significant design work has been completed.

How a COA Can Affect Your Project Timeline

Historic review is another step that needs to be considered when establishing a realistic project schedule.

The timeline can depend on the type of project, the property's designation, the level of review required, and whether revisions are requested.

For homeowners planning a renovation or addition, this means the historic review process should be considered alongside permit plans and other approvals rather than treated as a completely separate issue.

Coordinating these pieces early can reduce the possibility of having to revise completed drawings later.

Designing for St. Petersburg's Historic Districts

Working on a historic property requires more than creating a floor plan that fits the homeowner's needs.

The design has to respond to the existing building, the surrounding neighborhood, the property designation, and the requirements that apply to the proposed work.

At HB Design and Engineering, our architectural design services account for local project requirements from the early stages of design. For historic properties in St. Petersburg, that means understanding the property's designation, reviewing applicable guidelines, and considering the historic review process before construction documents are finalized.

HB Design and Engineering also coordinates architectural design with structural engineering and MEP engineering when those services are required for the project, helping keep the different parts of the design coordinated as the project moves toward permitting and construction.

Planning a Renovation or Addition in a St. Petersburg Historic District?

If your property is in Old Northeast, Historic Kenwood, Mirror Lake, Roser Park, or another locally designated historic area, don't wait until your plans are finished to determine whether historic review applies.

Understanding the property's designation and the applicable design guidelines early can help you make better decisions about the location, scale, materials, and scope of your project.

If you're planning a historic district renovation or addition in St. Petersburg, HB Design and Engineering can help you understand the design and permitting considerations before your plans are finalized.

Contact HB Design and Engineering to discuss your St. Petersburg project and start your design process with the right requirements in mind.