Impact of the Highly Significant Endangered (HSE) Overlay on City of Fort Worth Base Zoning Standards
In the City of Fort Worth, the Highly Significant Endangered (HSE) overlay functions as a supplemental layer that mandates the application of whichever standard is more restrictive between the base zoning and the adopted HSE design guidelines. All properties under this designation are subject to strict interim controls and require a Certificate of Appropriateness (COA) for any exterior work, construction, or demolition to ensure the preservation of historic integrity.
Relationship to Base Zoning Districts
The HSE overlay is a zoning overlay that supplements the primary underlying zoning district classification in the City of Fort Worth. While the permitted uses for a property are primarily determined and controlled by the base zoning district, the HSE overlay introduces a secondary layer of regulation that governs the physical characteristics and preservation of the site [§ 4.401(f)(6)(a)].
Precedence of Regulations
The City of Fort Worth Zoning Ordinance establishes a clear hierarchy of rules for properties designated as HSE. If there is a conflict between the adopted design standards for the HSE overlay and the provisions of the City of Fort Worth Zoning Ordinance, the more restrictive regulation must be followed [§ 4.401(f)(6)(e)].
| Regulation Category | HSE Overlay Modification Rule |
|---|---|
| General Precedence | The most restrictive regulation between the HSE overlay and base zoning always applies [§ 4.401(f)(6)(e)]. |
| Setbacks, Height, and Bulk | Adopted HSE design guidelines prevail over base zoning if they require more historically appropriate setbacks, height, or site configurations [§ 4.401(f)(6)(b)]. |
| Exterior Alterations | All exterior work requires a COA before a standard building permit can be issued by the City of Fort Worth [§ 4.401(d)(1)(a)]. |
| Demolition/Relocation | Strictly prohibited unless the owner proves a total loss of historic significance or unreasonable economic hardship [§ 4.401(d)(3)(b)(1)]. |
Certificate of Appropriateness (COA) Mandates
The most significant modification to base zoning procedures in the City of Fort Worth is the requirement for a COA. Any property designated or pending designation as HSE requires a COA before the commencement of any exterior work, including construction, alteration, demolition, relocation, and repair [§ 4.401(d)(1)(a)].
Interim Controls
Once a property in the City of Fort Worth is nominated for HSE designation, it immediately falls under interim controls. These controls remain in effect for 180 days or until the City Council makes a final decision. During this period, the property is subject to all COA requirements as if it were already fully designated [§ 4.401(5)(b)(2)].
Modification of Specific Development Standards
Signage Standards
The City of Fort Worth Zoning Ordinance modifies the standard signage rules for HSE properties. Attached signs are limited to a maximum area of 10% of the facade, and for structures exceeding 15 feet in height, the allowable sign square footage is calculated at 0.75 square feet per linear foot of the building facade [§ 6.408(a), § 4.406(h)(1)(a)]. Furthermore, electronic changeable copy signs are strictly prohibited within certain scenic corridors and on historically significant buildings unless they meet specific variance criteria [§ 6.411(a)].
Fencing and Walls
Fencing standards are also modified under the HSE overlay. For example, vehicles under repair at automotive shops in an HSE area must be screened from view by a six-foot solid screening fence or an evergreen hedge [§ 5.305(a)(17)]. In residential areas, the City of Fort Worth generally prohibits solid fences in required front yards, but a property owner may seek a special exception for a five-foot open design fence if it is compatible with the HSE context and adjacent neighbors consent [§ 5.305(b)(2)(c)].
Demolition Protections
The HSE overlay removes the "by-right" ability to demolish structures that might otherwise exist in base commercial or industrial districts. To demolish an HSE structure, the applicant must prove to the City of Fort Worth that the property has undergone significant and irreversible changes, was damaged by a non-intentional event, or that the current regulations impose an unreasonable economic hardship [§ 4.401(d)(3)(b)(1)].
Incentives for HSE Properties
To offset the more restrictive standards, the City of Fort Worth provides a historic site tax exemption for HSE properties that are substantially treated in accordance with the ordinance. This exemption is intended to keep the property owner in the same financial position regarding City of Fort Worth taxes for the duration of the exemption term, provided the property value is increasing [§ 4.401(f)(1)].
Sections Cited
- § 4.401 Historic Preservation Ordinance - Historic Overlays
- § 4.406 TCU Residential Overlay District
- § 5.305 Fences
- § 6.408 Regulations Governing On-Premise Attached Signs
- § 6.411 Electronic Changeable Copy Signs
- § 9.101 Defined Terms