| 
                  Saturday, September 06, 2025
                 | 
                
                  
                  2025 Symposium Weekend Volunteer Cleaning at Oak Hill Cemetery
                 | 
              
            
              
                | 
                  Friday, September 05, 2025
                 | 
                
                  
                  2025 APT DC Symposium – Unforeseen Conditions
                 | 
              
            
              
                | 
                  Thursday, August 28, 2025
                 | 
                
                  
                  Preservation Pioneers - Al Cox
                 | 
              
            
              
                | 
                  Saturday, August 02, 2025
                 | 
                
                  
                  Hard Hat Tour: The Wren Building at the College of William and Mary
                 | 
              
            
              
                | 
                  Friday, July 18, 2025
                 | 
                
                  
                  Masonry Restoration Workshop & Presentation
                 | 
              
            
              
                | 
                  Sunday, June 22, 2025
                 | 
                
                  
                  Annual APT DC Summer Picnic
                 | 
              
            
              
                | 
                  Thursday, May 22, 2025
                 | 
                
                  
                  APT DC 45th Anniversary Networking Happy Hour
                 | 
              
            
              
                | 
                  Saturday, May 10, 2025
                 | 
                
                  
                  APT DC/AIA HRC Joint Event! Historic Preservation in Baltimore: Eric Holcomb Talk and Garden Party
                 | 
              
            
              
                | 
                  Saturday, May 10, 2025
                 | 
                
                  
                  Mount Vernon Mansion Revitalization Project Tour
                 | 
              
            
              
                | 
                  Monday, April 28, 2025
                 | 
                
                  
                  3D Scanning Technologies at Every Scale of Historic Preservation and Documentation
                 | 
              
            
              
                | 
                  Tuesday, March 25, 2025
                 | 
                
                  
                  Restoring Thomas Jefferson's Poplar Forest
                 | 
              
            
              
                | 
                  Wednesday, March 19, 2025
                 | 
                
                  
                  Fixing the Bricks: Making Earthquake Retrofits & Preservation Affordable in Seattle
                 | 
              
            
              
                | 
                  Wednesday, March 12, 2025
                 | 
                
                  
                  APT DC Spring Networking Happy Hour
                 | 
              
            
              
                | 
                  Saturday, February 22, 2025
                 | 
                
                  
                  Seneca Sandstone Quarry Tour - NEW DATE
                 | 
              
            
              
                | 
                  Thursday, February 06, 2025
                 | 
                
                  
                  Seneca Sandstone Quarry Webinar and Tour
                 | 
              
            
              
                | 
                  Monday, December 09, 2024
                 | 
                
                  
                  2024 Holiday Party and Annual Meeting
                 | 
              
            
              
                | 
                  Thursday, December 05, 2024
                 | 
                
                  
                  Tech Talk #4: Metals Preservation
                 | 
              
            
              
                | 
                  Thursday, November 21, 2024
                 | 
                
                  
                  Tech Talk #3: Stone Weathering
                 | 
              
            
              
                | 
                  Monday, November 04, 2024
                 | 
                
                  
                  Tech Talk #2: Tower Restoration
                 | 
              
            
              
                | 
                  Monday, October 21, 2024
                 | 
                
                  
                  Tech Talk #1: Digital Technologies
                 | 
              
            
              
                | 
                  Saturday, October 12, 2024
                 | 
                
                  
                  Historic Home Tours with Tidewater & Big Bend Foundation
                 | 
              
            
              
                | 
                  Saturday, September 21, 2024
                 | 
                
                  
                  2024 Symposium Weekend Volunteer Cleaning at Oak Hill Cemetery
                 | 
              
            
              
                | 
                  Friday, September 20, 2024
                 | 
                
                  
                  APT DC 2024 Symposium: Monuments and Memorials
                 | 
              
            
              
                | 
                  Saturday, August 24, 2024
                 | 
                
                  
                  Maryland State House Dome Tour
                 | 
              
            
              
                | 
                  Wednesday, July 17, 2024
                 | 
                
                  
                  The Smithsonian Castle Renovation Seismic Isolation: Virtual Lecture
                 | 
              
            
              
                | 
                  Saturday, July 13, 2024
                 | 
                
                  
                  Maryland State House Restoration Hard Hat Tour
                 | 
              
            
              
                | 
                  Saturday, June 08, 2024
                 | 
                
                  
                  Summer Picnic
                 | 
              
            
              
                | 
                  Thursday, May 16, 2024
                 | 
                
                  
                  ICRI BWC / APT DC Joint Dinner Meeting
                 | 
              
            
              
                | 
                  Thursday, May 02, 2024
                 | 
                
                  
                  APT DC Webinar: Iconic Buildings, Iconic Details: Mid-Century Modernist Academic Buildings
                 | 
              
            
              
                | 
                  Saturday, April 13, 2024
                 | 
                
                  
                  Traditional Japanese Woodworking Presentation & Demonstration
                 | 
              
            
              
                | 
                  Saturday, March 16, 2024
                 | 
                
                  
                  Taylor House Restoration Project Tour
                 | 
              
            
              
                | 
                  Friday, March 01, 2024
                 | 
                
                  
                  Tour of the Smithsonian Castle
                 | 
              
            
              
                | 
                  Friday, February 23, 2024
                 | 
                
                  
                  Tour of the Smithsonian Castle
                 | 
              
            
              
                | 
                  Thursday, January 25, 2024
                 | 
                
                  
                  Six Degrees of Separation of World Heritage Sites with Divay Gupta
                 | 
              
            
              
                | 
                  Monday, December 11, 2023
                 | 
                
                  
                  Holiday Party and Annual Meeting
                 | 
              
            
              
                | 
                  Friday, November 03, 2023
                 | 
                
                  
                  Bulfinch Gates Talk & Walking Tour with Latrobe Chapter
                 | 
              
            
              
                | 
                  Tuesday, September 19, 2023
                 | 
                
                  
                  Social / Networking Event at Montalto
                 | 
              
            
              
                | 
                  Friday, September 15, 2023
                 | 
                
                  
                  APT DC 2023 Symposium - Bridging the Gap between Then and Now: Preservation of Historic Infrastructure
                 | 
              
            
              
                | 
                  Saturday, June 17, 2023
                 | 
                
                  
                  Summer Picnic at Glen Echo Park
                 | 
              
            
              
                | 
                  Saturday, May 20, 2023
                 | 
                
                  
                  May on the Bay
                 | 
              
            
              
                | 
                  Thursday, May 04, 2023
                 | 
                
                  
                  A Tale of Two Structures
                 | 
              
            
              
                | 
                  Friday, April 28, 2023
                 | 
                
                  
                  Tour of the Bird House at the National Zoo
                 | 
              
            
              
                | 
                  Wednesday, April 19, 2023
                 | 
                
                  
                  Preservation Pioneers - John Burns
                 | 
              
            
              
                | 
                  Thursday, March 30, 2023
                 | 
                
                  
                  DC Preservation League + APT DC Mixer
                 | 
              
            
              
                | 
                  Monday, December 12, 2022
                 | 
                
                  
                  Holiday Party and Annual Meeting
                 | 
              
            
              
                | 
                  Monday, November 14, 2022
                 | 
                
                  
                  MacDonough Hall Tour at the US Naval Academy
                 | 
              
            
              
                | 
                  Thursday, October 20, 2022
                 | 
                
                  
                  Hands-On Happy Hour and Lab Tour at Cathedral Stone
                 | 
              
            
              
                | 
                  Wednesday, October 19, 2022
                 | 
                
                  
                  Triple+ Constraint in Stone Restoration: Time, Scope, & Cost
                 | 
              
            
              
                | 
                  Friday, September 16, 2022
                 | 
                
                  
                  APT DC 2022 Symposium - Sacred Spaces
                 | 
              
            
              
                | 
                  Saturday, June 18, 2022
                 | 
                
                  
                  Summer Picnic and Hard Hat Tour at Menokin Plantation
                 | 
              
            
              
                | 
                  Saturday, June 04, 2022
                 | 
                
                  
                  Self-Guided Tour at Washington Temple
                 | 
              
            
              
                | 
                  Saturday, April 30, 2022
                 | 
                
                  
                  Hard Hat Tour of Hirshhorn Museum Envelope Project
                 | 
              
            
              
                | 
                  Tuesday, April 05, 2022
                 | 
                
                  
                  Historic Steel Windows with Gordon Bock
                 | 
              
            
              
                | 
                  Wednesday, February 23, 2022
                 | 
                
                  
                  Preservation in Nepal with Tim Bowden
                 | 
              
            
              
                | 
                  Wednesday, December 15, 2021
                 | 
                
                  
                  2021 APT DC Annual Meeting and Holiday Party
                 | 
              
            
              
                | 
                  Tuesday, November 09, 2021
                 | 
                
                  
                  FS 4 - President Lincoln's Cottage at the Armed Forces Retirement Home
                 | 
              
            
              
                | 
                  Saturday, November 06, 2021
                 | 
                
                  
                  FS 3 - "Wonderland of Fun" the Preservation and Management of Glen Echo Park
                 | 
              
            
              
                | 
                  Thursday, November 04, 2021
                 | 
                
                  
                  FS 2 - DC's Library Renaissance, Rehabilitating Historic Central Libraries for 21st Century Uses
                 | 
              
            
              
                | 
                  Saturday, October 30, 2021
                 | 
                
                  
                  FS 1 - "The Man Who Made Concrete Beautiful" the Works of John Joseph Earley
                 | 
              
            
              
                | 
                  Wednesday, September 29, 2021
                 | 
                
                  
                  Virtual Lecture: Laser Cleaning Technology
                 | 
              
            
              
                | 
                  Tuesday, April 06, 2021
                 | 
                
                  
                  Preservation Pioneers: Ed Meade
                 | 
              
            
              
                | 
                  Wednesday, February 24, 2021
                 | 
                
                  
                  The DC Clean Energy Act and Existing Buildings
                 | 
              
            
              
                | 
                  Thursday, June 04, 2020
                 | 
                
                  
                  Virtual Lecture: William Jefferson Clinton Federal Building Masonry Rehabilitation
                 | 
              
            
              
                | 
                  Tuesday, April 21, 2020
                 | 
                
                  
                  Virtual Lecture - DC Engineers: Thomas Lincoln Casey Sr. and Bernard Richardson Green
                 | 
              
            
              
                | 
                  Thursday, March 12, 2020
                 | 
                
                  
                  Near Peers Social Hour
                 | 
              
            
              
                | 
                  Friday, November 01, 2019
                 | 
                
                  
                  APT DC in Richmond: Networking Happy Hour
                 | 
              
            
              
                | 
                  Saturday, October 05, 2019
                 | 
                
                  
                  Volunteer Cleaning at the Korean War Veterans Memorial
                 | 
              
            
              
                | 
                  Friday, September 20, 2019
                 | 
                
                  
                  2019 Symposium - The Preservationist's Toolkit
                 | 
              
            
              
                | 
                  Wednesday, August 28, 2019
                 | 
                
                  
                  Fire Safety and Historic Buildings Lecture with David Jacoby
                 | 
              
            
              
                | 
                  Saturday, June 29, 2019
                 | 
                
                  
                  Annual Summer Picnic
                 | 
              
            
              
                | 
                  Saturday, June 01, 2019
                 | 
                
                  
                  Gilding Workshop
                 | 
              
            
              
                | 
                  Tuesday, April 23, 2019
                 | 
                
                  
                  Member Open House and Networking Event
                 | 
              
            
              
                | 
                  Wednesday, April 17, 2019
                 | 
                
                  
                  Long Leaf Yellow Pine through the Lens of Whitehall and Castlewood - A Lecture by Davis Buckley
                 | 
              
            
              
                | 
                  Tuesday, February 26, 2019
                 | 
                
                  
                  Preservation Pioneers Lecture Series with Sharon Park
                 | 
              
            
              
                | 
                  Saturday, November 03, 2018
                 | 
                
                  
                  Heritage Documentation and Survey Using Drones - Demonstration and Panel Discussion
                 | 
              
            
              
                | 
                  Friday, October 05, 2018
                 | 
                
                  
                  Volunteer Work Day at the Bostwick House with HistoriCorps
                 | 
              
            
              
                | 
                  Wednesday, September 19, 2018
                 | 
                
                  
                  Historic Preservation - A Comparison Between the United States and France
                 | 
              
            
              
                | 
                  Tuesday, June 26, 2018
                 | 
                
                  
                  Preservation Pioneers: Willie Graham
                 | 
              
            
              
                | 
                  Sunday, June 24, 2018
                 | 
                
                  
                  Pope-Leighey and Woodlawn House Tours
                 | 
              
            
              
                | 
                  Saturday, November 04, 2017
                 | 
                
                  
                  Rediscovery and Transformation at the Enoch Pratt Free Library
                 | 
              
            
              
                | 
                  Saturday, August 19, 2017
                 | 
                
                  
                  National Park Seminary
                 | 
              
            
              
                | 
                  Saturday, June 03, 2017
                 | 
                
                  
                  Volunteer Event at the Japanese American Memorial to Patriotism During World War II
                 | 
              
            
              
                | 
                  Monday, March 20, 2017
                 | 
                
                  
                  Trivia Night with DCPL
                 | 
              
            
              
                | 
                  Wednesday, March 08, 2017
                 | 
                
                  
                  "Montgomery Modern" Lecture with Clare Lise Kelly
                 | 
              
            
              
                | 
                  Wednesday, November 09, 2016
                 | 
                
                  
                  Union Station Rostral Column Restoration
                 | 
              
            
              
                | 
                  Monday, October 24, 2016
                 | 
                
                  
                  Climate Change and its Effect on Built Heritage
                 | 
              
            
              
                | 
                  Saturday, October 08, 2016
                 | 
                
                  
                  Historic Breweries of Alexandria Tour
                 | 
              
            
              
                | 
                  Saturday, September 17, 2016
                 | 
                
                  
                  September Picnic at Meridian Hill Park
                 |