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Guidelines - City of Oklahoma City

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Preservation Standards AND <strong>Guidelines</strong> August 1, 2012<br />

1.4 HISTORIC PRESERVATION AND SUSTAINABILITY<br />

Introduction<br />

Many cities across the country have adopted design guidelines to promote the preservation <strong>of</strong> historic<br />

buildings and the retention <strong>of</strong> their original materials. In the sense that preservation discourages the<br />

replacement <strong>of</strong> original architectural features, design guidelines typically are inherently ―green.‖ While<br />

design guidelines imply sustainability, making direct links between the two is now the approach <strong>of</strong> a<br />

number <strong>of</strong> community preservation efforts. Design guidelines embrace the tenets <strong>of</strong> re-use and maintenance,<br />

thus preserving historic buildings and protecting existing resources from depletion. Preservation‘s<br />

traditional focus on the aesthetic and cultural significance <strong>of</strong> historic buildings is expanding to<br />

highlight the inherent energy-efficient values <strong>of</strong> such properties as well.<br />

Sustainable Development<br />

The word ―sustainability‖ has become a common part <strong>of</strong> our modern language. One familiar definition<br />

that was popularized in 1987 by a publication <strong>of</strong> the United Nations Commission on Environment and<br />

Development is “Sustainable development meets the needs <strong>of</strong> the present without compromising the<br />

ability <strong>of</strong> future generations to meet their own needs.” The concept <strong>of</strong> this definition is that sustainable<br />

development requires consideration <strong>of</strong> the finite supply <strong>of</strong> resources.<br />

Working with Nature: Site Orientation<br />

Historic buildings are <strong>of</strong>ten as energy-efficient as new ones. Buildings constructed before World War<br />

II were designed, constructed, and sited to achieve optimum ventilation, insulation, and use <strong>of</strong> daylight.<br />

Over the past sixty years, as electricity, synthetic insulation, and central heating and air conditioning<br />

systems became standard installations in modern construction, architectural design no longer<br />

required attention to the natural environment. Quality and longevity <strong>of</strong> building materials also became<br />

less important, as these modern conveniences could control the interior climate <strong>of</strong> buildings and materials<br />

were readily available to build anew.<br />

Dwellings in the city's historic districts<br />

were designed with inherent energy<br />

conservation methods in the days before<br />

air conditioning. This included<br />

wide ro<strong>of</strong> eaves, broad porches, windows<br />

for cross ventilation (such as<br />

double hung windows) and awnings<br />

for window shade. (416 NW 22nd<br />

Street)<br />

<strong>Oklahoma</strong> <strong>City</strong> Historic Districts 11

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