Telephone: 540 447 4405
Aaslestad Preservation Consulting, LLC provides architects, preservationists, and building owners with high quality documentation that describes the existing conditions of built structures - in photographs and/or in CAD format, as measured drawings, high density point clouds, accurate 3-D models...
Peter Aaslestad is recognized in the U.S. as a pioneer in using photogrammetry to record historic structures as a consulting service to other architects, preservationists and property owners.
Drawing on his background in architecture & photography, Peter has documented the existing conditions of wide variety of structures - including ruins, the homes of presidents, entire neighborhoods, national landmarks and more in the United States, Europe, and Asia.
His consulting service offerings for preservation & design work include 3D scanning, creation of high density point clouds & 3D models, orthophotography, rectified photography, hybrid drawings, mosaic imaging, and accurate measured drawings in CAD format. These can include elevations, plans, sections, reflected ceiling plans that capture an describe a building's envelope and/or its interior spaces and surfaces.
Mr. Aaslestad has been a guest lecturer for the APT (Association for Preservation Technology), Columbia University, and the Universities of Virginia, North Carolina and Florida. In 2001, Mr. Aaslestad became an active member of the investigative team working to restore James Madison’s Montpelier. The groundbreaking work produced by this team was recognized in 2003 with the prestigious Paul E. Buchanan Award, presented by the Vernacular Architecture Forum.
Peter also contracts creative work as a designer & as a free lance photographer with works appearing in a variety of publications over his 25 year career.
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- 3D Scanning
- Building in Minneapolis
- Preservation Consulting
- 287 Broadway (NYC)
- 30403 Coffee Table (Design Collaboration)
- Blanton Residence (Design Project)
- Bob White Bridge – Woolwine, VA
- Child’s Restaurant
- Cosmos Club Ballroom
- Fayette County Courthouse
- First Unitarian Church of Philadelphia
- Fort Sumter
- Franklin and Marshall College
- Grace Church (NYC)
- Harry Lee Hall at Quantico
- Hill-Stead Museum
- James Madison’s Montpelier
- Luzerne County Courthouse
- Maria Mitchell House in Nantucket
- Mercersburg Academy
- Meridian Hill Park
- New Castle Town Hall – New Castle, DE
- Park Avenue Armory (7th Regiment Armory)
- Provident Mutual Life Insurance Building
- Quai Vauban (France)
- Saline Royal | Claude-Nicolas Ledoux
- Temple Beth-El – Jersey City, NJ
- The Maymont Mansion
- The New Jersey Statehouse
- The North Carolina State Capitol
- The Old Senate Chamber at the Maryland State Capitol
- The Roxboro House
- The Stone House at the Newtown History Center
- The Tomb of the Unknowns
- The Westory Building in Washington, DC
- Trinity Episcopal Church in Rensselaerville, NY
- Virginia Commonwealth University
- Virginia Union University
- Vladivostok (Russia)
- War Memorial Auditorium (Nashville)
- Wilson Addition (Design Project)
Tag Archives: old
In 2005 While I was running the digital documentation studio for Frazier Associates I enjoyed working on this challenging project for the Rosewell Foundation. My task was to create accurate, architectural documentation of the remaining masonry walls of this once grand house on the York river in Gloucester County, Virginia. You can read more about the house here.
Documenting ruins is a little different than a standing building. The goal is less about presenting a description of building in its “platonic essence” and more about presenting it as it actually is at this moment in time. Capturing the way a wall, tower, or chimney is leaning becomes rather important! To this end, I prepared the building prior to the photo shoot by fixing special targets that could establish a level datum line (using a laser level).
The drawings and photographs produced for this project were used by architects Mesick Cohen Wilson Baker to create a “Blueprint for the Preservation of the Ruins at Rosewell” which consisted of a history, an structural analysis, an archaeological report, and stabilization plan.
Last spring I did some work at Franklin and Marshall College in Lancaster, PA. I prepared a combination of measured drawings in CAD linked to rectified photographs of the three oldest structures on the campus. These were then used as base documentation for an assessment of the existing conditions of the masonry surfaces across the extent of these buildings’ exterior facades.
The sequence of this work went roughly as follows: I first shot photos of all of the buildings from points of view available on the ground (using a specially calibrated digital SLR). Back in my offices in Virginia I used photogrammetric software to “back calculate” the camera stations and to make precise 3-D measurements of points on the three structures. I used this dimensionally accurate point cloud as a reference to create rectified photographs of the surfaces visible from grade.
Using the point cloud and the rectified photographs I then created measured line drawings of the structures and laid them out onto tabloid size sheets for use in the field. These were taken by hand up into an aerial lift so that conditions could be noted with a fair degree of accuracy once assessment were made both visually and manually.
Once the assessment was completed the data recorded on the field sheets was entered in the CAD drawings. At this point the line drawings in CAD were enriched by a mosaic of rectified photographs visible inside of AutoCAD. This allows for an accurate transfer of notes from the field to eventual construction documents. A sketch of an area or region can be transferred to CAD and become dimensionally reliable. This is a very important step because it provides for an accurate tally of areas to be treated in one way or another.
Since the main structure was rather tall, I also returned to the site to go up in the aerial lift to collect more photographs to further enrich my drawings with better rectified images of areas that were either blocked by vegetation, neighboring buildings, or were too foreshortened to provide good rectified images.