https://www.designingbuildings.co.uk/w/index.php?action=history&feed=atom&title=ObsolescenceObsolescence - Revision history2026-05-09T11:59:29ZRevision history for this page on the wikiMediaWiki 1.17.4https://www.designingbuildings.co.uk/w/index.php?title=Obsolescence&diff=229147&oldid=prevDesigning Buildings at 06:39, 18 April 20222022-04-18T06:39:40Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Renovation.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Renovation.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Restoration.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Restoration.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* Unforeseen obsolescence.</ins></div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>= References =</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>= References =</div></td></tr>
</table>Designing Buildingshttps://www.designingbuildings.co.uk/w/index.php?title=Obsolescence&diff=228752&oldid=prevDesigning Buildings at 07:11, 11 April 20222022-04-11T07:11:12Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Abnormal obsolescence.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Abnormal obsolescence.</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Planned obsolescence.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Planned obsolescence.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Product-life extension: product-life factor.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Product-life extension: product-life factor.</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Building pathology.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Building pathology.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Defects list.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Defects list.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* Design life.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* End of life.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Making good.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Making good.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Refurbishment.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Refurbishment.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Renovation.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Renovation.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Restoration.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Restoration.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">* Site inspection.</del></div></td><td colspan="2"> </td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>= References =</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>= References =</div></td></tr>
</table>Designing Buildingshttps://www.designingbuildings.co.uk/w/index.php?title=Obsolescence&diff=227237&oldid=prevDesigning Buildings at 07:25, 21 March 20222022-03-21T07:25:12Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Obsolescence in buildings maybe somewhat irregular, it often differs from context to context as internal and external influences are diverse and effected by a multitude of factors. [1,2]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Obsolescence in buildings maybe somewhat irregular, it often differs from context to context as internal and external influences are diverse and effected by a multitude of factors. [1,2]</div></td></tr>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>= Related articles on <del class="diffchange diffchange-inline">designing buildings: </del>=</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>= Related articles on <ins class="diffchange diffchange-inline">Designing Buildings </ins>=</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* Abnormal obsolescence.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Planned obsolescence.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Planned obsolescence.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Product-life extension: product-life factor.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Product-life extension: product-life factor.</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div># [https://doi.org/10.17226/2124 National Research Council (1993). The fourth dimension in building: Strategies for minimizing obsolescence. Washington, DC: The National Academies Press. https://doi.org/10.17226/2124]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div># [https://doi.org/10.17226/2124 National Research Council (1993). The fourth dimension in building: Strategies for minimizing obsolescence. Washington, DC: The National Academies Press. https://doi.org/10.17226/2124]</div></td></tr>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>[[Category:Definitions]] [[Category:International]] [[Category:Design]] [[Category:Products_/_components]] [[Category:Property_development]] [[Category:Public_procedures]] [[Category:Circular_economy]]</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">[[Category:DCN_Definition]] [[Category:DCN_Guidance]] </ins>[[Category:Definitions]] [[Category:International]] [[Category:Design]] [[Category:Products_/_components]] [[Category:Property_development]] [[Category:Public_procedures]] [[Category:Circular_economy]]</div></td></tr>
</table>Designing Buildingshttps://www.designingbuildings.co.uk/w/index.php?title=Obsolescence&diff=225921&oldid=prevEditor at 21:48, 24 February 20222022-02-24T21:48:56Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Planned obsolescence.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Planned obsolescence.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* Product-life extension: product-life factor.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Betterment.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Betterment.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Building pathology.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Building pathology.</div></td></tr>
</table>Editorhttps://www.designingbuildings.co.uk/w/index.php?title=Obsolescence&diff=225919&oldid=prevEditor at 21:45, 24 February 20222022-02-24T21:45:36Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>= Related articles on designing buildings: =</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>= Related articles on designing buildings: =</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* Planned obsolescence.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Betterment.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Betterment.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Building pathology.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Building pathology.</div></td></tr>
</table>Editorhttps://www.designingbuildings.co.uk/w/index.php?title=Obsolescence&diff=225697&oldid=prev95.90.238.181 at 11:50, 21 February 20222022-02-21T11:50:53Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Obsolescence in buildings maybe somewhat irregular, it often differs from context to context as internal and external influences are diverse and effected by a multitude of factors. [1,2]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Obsolescence in buildings maybe somewhat irregular, it often differs from context to context as internal and external influences are diverse and effected by a multitude of factors. [1,2]</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Building pathology.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Building pathology.</div></td></tr>
</table>[IP address hidden]https://www.designingbuildings.co.uk/w/index.php?title=Obsolescence&diff=225696&oldid=prev95.90.238.181 at 11:50, 21 February 20222022-02-21T11:50:01Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Obsolescence in buildings maybe somewhat irregular, it often differs from context to context as internal and external influences are diverse and effected by a multitude of factors. [1,2]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Obsolescence in buildings maybe somewhat irregular, it often differs from context to context as internal and external influences are diverse and effected by a multitude of factors. [1,2]</div></td></tr>
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</table>[IP address hidden]https://www.designingbuildings.co.uk/w/index.php?title=Obsolescence&diff=225695&oldid=prev95.90.238.181 at 11:48, 21 February 20222022-02-21T11:48:56Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Obsolescence in buildings maybe somewhat irregular, it often differs from context to context as internal and external influences are diverse and effected by a multitude of factors. [1,2]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Obsolescence in buildings maybe somewhat irregular, it often differs from context to context as internal and external influences are diverse and effected by a multitude of factors. [1,2]</div></td></tr>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* <del class="diffchange diffchange-inline">[https://www.designingbuildings.co.uk/wiki/Betterment </del>Betterment<del class="diffchange diffchange-inline">]</del>.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* Betterment.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* <del class="diffchange diffchange-inline">[https://www.designingbuildings.co.uk/wiki/Building_pathology </del>Building pathology<del class="diffchange diffchange-inline">]</del>.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* Building pathology.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* <del class="diffchange diffchange-inline">[https://www.designingbuildings.co.uk/wiki/Defects_list </del>Defects list<del class="diffchange diffchange-inline">]</del>.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* Defects list.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* <del class="diffchange diffchange-inline">[https://www.designingbuildings.co.uk/wiki/Making_good </del>Making good<del class="diffchange diffchange-inline">]</del>.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* Making good.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* <del class="diffchange diffchange-inline">[https://www.designingbuildings.co.uk/wiki/</del>Refurbishment <del class="diffchange diffchange-inline">Refurbishment]</del>.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* Refurbishment.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* <del class="diffchange diffchange-inline">[https://www.designingbuildings.co.uk/wiki/</del>Renovation <del class="diffchange diffchange-inline">Renovation]</del>.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* Renovation.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* <del class="diffchange diffchange-inline">[https://www.designingbuildings.co.uk/wiki/</del>Restoration <del class="diffchange diffchange-inline">Restoration]</del>.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* Restoration.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* <del class="diffchange diffchange-inline">[https://www.designingbuildings.co.uk/wiki/Site_inspection </del>Site inspection<del class="diffchange diffchange-inline">]</del>.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* Site inspection.</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>= References =</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>= References =</div></td></tr>
</table>[IP address hidden]https://www.designingbuildings.co.uk/w/index.php?title=Obsolescence&diff=225680&oldid=prevEditor at 08:52, 21 February 20222022-02-21T08:52:44Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Obsolescence in buildings maybe somewhat irregular, it often differs from context to context as internal and external influences are diverse and effected by a multitude of factors. [1,2]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Obsolescence in buildings maybe somewhat irregular, it often differs from context to context as internal and external influences are diverse and effected by a multitude of factors. [1,2]</div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [https://www.designingbuildings.co.uk/wiki/Building_pathology Building pathology].</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [https://www.designingbuildings.co.uk/wiki/Defects_list Defects list].</ins></div></td></tr>
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</table>Editorhttps://www.designingbuildings.co.uk/w/index.php?title=Obsolescence&diff=225655&oldid=prevDesigning Buildings at 06:32, 21 February 20222022-02-21T06:32:00Z<p></p>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">A </del>term originating from the late 17th century <del class="diffchange diffchange-inline">to mean </del>‘passing out of use’ or falling into disuse<del class="diffchange diffchange-inline">, it </del>is often related to products or services but also the built environment. In the context of products or services, obsolescence management is defined as the &quot;transition from available to unavailable from the manufacturer in accordance with the original specification&quot; [1] It also links to previous practices of planned obsolescence and in turn almost opposing product-life factor and circular economies.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Obsolescence is a </ins>term originating from the late 17th century <ins class="diffchange diffchange-inline">meaning </ins>‘passing out of use’ or falling into disuse<ins class="diffchange diffchange-inline">. It </ins>is often related to products or services but also the built environment. In the context of products or services, obsolescence management is defined as the &quot;transition from available to unavailable from the manufacturer in accordance with the original specification&quot; [1] It also links to previous practices of planned obsolescence and in turn almost opposing product-life factor and circular economies.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>In construction the term could <del class="diffchange diffchange-inline">be referring </del>to specific products or elements of a building as well as the end-of-life <del class="diffchange diffchange-inline">phase </del>of the whole building. It may be understood as being the result of physical deterioration, technological advances or <del class="diffchange diffchange-inline">aesthetical </del>preferences. More explicitly <del class="diffchange diffchange-inline">one might take the view </del>to <del class="diffchange diffchange-inline">attribute it as </del>the growing divergence between rising demand side expectations due to technological advances on the one side, and declining performance on the other.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>In construction the term could <ins class="diffchange diffchange-inline">refer </ins>to specific products or elements of a building as well as the end-of-life of the whole building. It may be understood as being the result of physical deterioration, technological advances or <ins class="diffchange diffchange-inline">changes in </ins>preferences. More explicitly <ins class="diffchange diffchange-inline">it may refer </ins>to the growing divergence between rising demand side expectations due to technological advances on the one side, and declining performance on the other.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>The reasons for obsolescence might include <del class="diffchange diffchange-inline">both behavioural and physical aspects. </del>The degradation or fatigue of materials over time, through insufficient maintenance, overload, overuse, misuse or maltreatment. Physical impacts of nearby construction, rising standards and government regulations <del class="diffchange diffchange-inline">like taxation </del>may amplify the onset of obsolescence, in the surroundings or building locations. Changes in function, use or needs that <del class="diffchange diffchange-inline">are </del>cannot be accommodated within the existing design <del class="diffchange diffchange-inline">choices may lead to obsolescence as well as social </del>deprivation processes, criminality, availability or simply aesthetics as external behavioural factors.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>The reasons for obsolescence might include<ins class="diffchange diffchange-inline">:</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* </ins>The degradation or fatigue of materials over time, through insufficient maintenance, overload, overuse, misuse or maltreatment.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* </ins>Physical impacts of nearby construction, rising standards and government regulations may amplify the onset of obsolescence, in the surroundings or building locations.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* </ins>Changes in function, use or needs that cannot be accommodated within the existing design<ins class="diffchange diffchange-inline">.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Social </ins>deprivation processes, criminality, availability or simply aesthetics as external behavioural factors.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Obsolescence in buildings maybe somewhat irregular, it often differs from context to context as internal and external influences are diverse and effected by a multitude of factors. [1,2]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Obsolescence in buildings maybe somewhat irregular, it often differs from context to context as internal and external influences are diverse and effected by a multitude of factors. [1,2]</div></td></tr>
</table>Designing Buildings