Capitol Hill Restoration Society

Time Slider – HistoryQuest DC

Posted on March 22nd, 2020

A new feature of the DC Historic Preservation Office’s HistoryQuest DC building permit GIS mapping tool is a Time Slider that graphically displays the physical built development in the District of Columbia.

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Finding Historic Photographs of Capitol Hill Houses

Posted on November 5th, 2017

By Beth Purcell  

Photographs of Capitol Hill houses from the past may be available from several sources. This article focuses on photographs of existing buildings.


It’s a big universe. You may want to start by searching these collections online, and then visit the libraries and consult librarians for additional help. The box shows contact information for Library of Congress (LOC), Washingtoniana, and Historical Society of Washington, DC (HSW).


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HistoryQuest DC

Posted on November 29th, 2016

The D.C. Historic Preservation Office hosts  HistoryQuest DC, a GIS-based web map that provides historical data on approximately 127,000 extant buildings in Washington, D.C. The historic data is easily retrievable and can be queried and mapped, providing a new tool for illustrating the city’s building history and patterns of urban development.