Oklahoma City, OK “Green” Design Guidelines
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OKLAHOMA CITY HISTORIC PRESERVATION Design & Sustainability STANDARDS and GUIDELINES Oklahoma City, Oklahoma July 2012 Preservation Standards AND Guidelines JuLY 2012 This page left intentionally blank Oklahoma City Historic Districts 2 Oklahoma City Historic Preservation Design & Sustainability Standards and Guidelines Oklahoma City, Oklahoma Prepared for the City of Oklahoma City, Oklahoma by Thomason and Associates, Preservation Planners EOA Architects Inc. Nashville, Tennessee July 2012 This report is based on work supported by the Department of Energy under Award Number DE-EE0000920/001. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific com- mercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Preservation Standards AND Guidelines JuLY 2012 ACKNOWLEDGEMENTS City Officials Mayor Mick Cornett City Council: Gary Marrs Dr. Ed Shadid Larry McAtee Pete White David Greenwell Meg Salyer Ronald Skip Kelly Patrick J. Ryan Historic Preservation Commission Karen Zimmer, Chair Allen Brown, AIA, Vice Chair Heather A. Clemmer Neila Crank-Clements Patrick Gaines George Massey Karen Nelson Geoffrey Parks, AIA Roland Tague Oklahoma City Staff Russell Claus, Planning Director Jennifer Gooden, Office of Sustainability Director Susan Miller, Assistant Planning Director Rita Douglas-Talley, Assistant City Attorney Catherine Montgomery AIA, Historic Preservation Officer Angela Yetter, Planner 1 Paula Hurst, Administrative Coordinator Oklahoma City Historic Districts 4 Preservation Standards AND Guidelines JuLY 2012 TABLE OF CONTENTS SETTING THE FOUNDATION CHAPTER 1 - INTRODUCTION AND ORIENTATION 1.1 Historic Preservation and Design Standards and Guidelines……………………………...7 1.2 Designation and Review Process…………………………………………………………..7 1.3 How to Use These Standards and Guidelines……………………………………………...9 1.4 Historic Preservation and Sustainability…………………...……………………………..11 1.5 Improving the Energy Efficiency of Older Buildings…………………………………….14 1.6 Brief History of Oklahoma City .……..……...….……………..……..………..…..….....22 1.7 Oklahoma City Historic Preservation and Landmark Zoned Districts and Properties…...24 1.8 Architectural Styles and Traditions in Oklahoma City………………………..………….29 1.9 Overall Approach and Format……………………………………………………………36 1.10 Design Review: Public and Private Space in Historic Districts………………………...38 PRESERVATION STANDARDS AND GUIDELINES CHAPTER 2 - SITE AND LANDSCAPE CONSIDERATIONS 2.1 Lot Size……………………………………………………………………………….......41 2.2 Setbacks…………………………………………………………………………………..42 2.3 Sidewalks, Driveways, Parking Lots, Curbs and Vacant Sites…………………………...44 2.4 Service and Mechanical Areas…………………………………………………………....49 2.5 Landscaping and Landscape Elements…………………………………………………...51 2.6 Views and Vistas……………………………………………………………………..…...54 2.7 Plants and Planting Recommendations………………….…………………………….….55 2.8 Fences and Walls…………………………………………………………………………58 2.9 Public Property and Right-of-Way Improvements……………………………………….61 CHAPTER 3 - ALTERATIONS TO THE BUILDING FABRIC AND COMPONENTS OF HISTORIC BUILDINGS 3.1 Maintenance, Preservation and Rehabilitation of Exterior Building Materials…….…….65 3.2 Exterior Paint Color for Exterior Painted Surfaces……………………………………….70 Oklahoma City Historic Districts 5 Preservation Standards AND Guidelines JuLY 2012 3.3 Porches, Canopies, Porte-Cocheres and Balconies……………………………………….73 3.4 Pergola or Freestanding Trellis…………………………………………………………...81 3.5 Doors and Entries………………………………………………………………………...82 3.6 Windows, Shutters and Awnings...……………………………………………….………85 3.7 Roofs……………………………………………………………………………………...92 3.8 Foundations……………………………………………………………………………….97 3.9 Accessory Buildings, Including Garages……………...…………………..……..……….99 3.10 Signs……………………………………………………………….…………..…..……101 3.11 Lighting…………………………………………………………………………………102 CHAPTER 4 - NEW CONSTRUCTION 4.1 General Requirements for New Construction and Additions…………………………...105 4.2 Stand-Alone New Construction…………………………………………………………106 4.3 Building Additions………………………………………………………………………109 4.4 Garages……………………………………………………………...…………………..112 4.5 Accessory Buildings………………………………………………………………….....114 4.6 Exterior Materials at New Construction………………………………………………...116 4.7 Features for Improving Energy Efficiency in New Construction……………………….120 APPENDICES A - Specific Definitions for Standards and Guidelines …………………………………..…123 B - Secretary of the Interior’s Standards for the Treatment of Historic Properties.………...133 Including Preservation, Rehabilitation, Restoration, and Reconstruction C - Bibliography and Sources…………………………………………………………….…137 Oklahoma City Historic Districts 6 Preservation Standards AND Guidelines JuLY 2012 Setting the Foundation: Chapter 1 INTRODUCTION AND ORIENTATION 1.1 HISTORIC PRESERVATION AND DESIGN STANDARDS AND GUIDELINES Thousands of cities and towns across the nation protect historic districts and landmarks and promote historic preservation as an important tool for improving community livability and quality of life. Pres- ervation activity in older and historic districts helps to promote civic pride, improves property values, stabilizes the inner-city, creates skilled jobs, increases sales tax revenues, and minimizes negative im- pacts on the environment by retaining existing buildings and building materials. The historic districts in Oklahoma City are distinctive areas, each with its own unique character. Each historic district is distinguished by its’ buildings, streets, parks and parkways, trees, architectural de- sign and landscape features. Some are large with hundreds of properties; some are smaller. Some dis- tricts contain grand ornate buildings while others contain more modest structures; and each district serves as a legacy, linking present and future generations with their heritage and providing diversity to the City’s appearance, and character. The City’s historic preservation ordinance acknowledges that historic districts and landmarks are valu- able assets to the city. The ordinance recognizes that change is important to the community’s evolution and an indication of healthy, vital neighborhoods occupied by residents proud of their neighborhood and its history. Development and investment that preserves the historic character and enhances the liv- ability of Oklahoma City’s historic districts and properties are encouraged. 1.2 DESIGNATION AND REVIEW PROCESS Designation of Historic Preservation (HP) and Historic Landmark (HL) zoned districts and properties may be established by City Council. Careful research and evaluation of a district’s or property’s his- torical significance is required to support the designation process. Historic districts – the first of which for Oklahoma City was designated in 1969 – are created to protect the existing character and enhance or stabilize the existing condition of the district and the surrounding area. The Historic Preservation (HP) and Historic Landmark (HL) zoning process protects historic districts and properties from un- managed, inappropriate change by a thorough review process based on the Municipal Code (Chapter 59) and these Preservation Standards and Guidelines. The Oklahoma City Historic Preservation Commission (HPC) serves both the general public, as stew- ards of the special historic places and areas in the city, and the owners of properties zoned HP or HL when planning major repairs, alterations or new construction. The HPC members are appointed by the Mayor with consent and approval of the City Council. By ordinance, the Commissioners should Oklahoma City Historic Districts 7 Preservation Standards AND Guidelines JuLY 2012 have demonstrated special interest; experience or education in history, architecture and the heritage of Oklahoma City; and several members must be professionals within specialized fields and related to historic preservation. The HPC has several powers and responsibilities including recommending to the City Council the designation of landmarks and historic districts; granting requests for proposed changes to the exteriors of buildings and properties; conducting educational programs on historic pres- ervation; cooperating with local, state and federal governments in pursuance of its responsibilities; and conducting meetings or hearings necessary to carry out its purpose. Historic Preservation and Historic Landmark zoned districts and properties are so designated to guide and not to prevent change. The HPC and Planning Department staff provide assistance to property owners and tenants in shaping changes and improvements to historic properties while meeting the standards of City ordinances and these Standards and Guidelines. The Municipal Code establishes a process that ensures changes to HP or HL zoned properties are consistent with the spirit and character of the historic district and the indi- vidual properties while