Citadel DCA

Citadel DCA Preservation Architects I Washington DC I Santander ES

As preservation architects focused mostly on conservation we have few opportunities to design. However, a recent project...
09/02/2026

As preservation architects focused mostly on conservation we have few opportunities to design. However, a recent project involves a restaurant in an c. 1867 federal building. Today's site visit found the tile contractors well underway.

It has been a while since we posted images from a project. Not that we haven't been working, just a bit neglectful of ou...
09/02/2026

It has been a while since we posted images from a project. Not that we haven't been working, just a bit neglectful of our social media. Here is an image from a current dome restoration project with Evergreene Architectural Arts. The necessary plaster repairs and surface preparation have been formidable, but we are almost ready to apply the first coat of paint.

In November we completed our 4 year effort to clean and repair the Milford granite exterior of the US Treasury building ...
02/20/2026

In November we completed our 4 year effort to clean and repair the Milford granite exterior of the US Treasury building at 15th & Pennsylvania in DC. You don't get many projects like this one, and we were honored to have led the project.

Address

601 Pennsylvania Avenue NW Suite 900
Washington D.C., DC
20004

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

(202) 820-3605

Website

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