48 Hudson Avenue
Van Ostrande–Radliff House
48 Hudson Avenue undergoing preservation and restoration in 2009
|Location||48 Hudson Avenue Albany, New York|
|Architectural style||Dutch Colonial|
|Part of||Downtown Albany Historic District|
|NRHP Reference #||07000291|
|Added to NRHP||January 10, 2008|
48 Hudson Avenue, also known as the Van Ostrande–Radliff House, is the oldest building in the city of Albany, New York. It was believed by Paul Huey, in the Albany architectural guide of 1993, to have been built in 1759 by Johannes Radliff when he married Elizabeth Singleton because he believed it was built after the stockade was moved south by one block. Research done by Albany historian John Wolcott proved that it had been occupied by Johannes van Ostrande between 1728 and 1734 and that a mortgage Radliff had on the house referred to it as "formerly van Ostrande." The Lamont-Doherty Earth Sciences laboratory of Columbia University performed dendrochronology on a wood core sample from the building to confirm that the building dated from 1728. It has been listed on the National Register of Historic Places since January 10, 2008; prior to that, it had been a contributing property to the Downtown Albany Historic District.
48 Hudson Avenue was built by Johannes van Ostrande in 1728 just outside the stockade walls and a few hundred yards from the old Fort Orange. Van Ostrande was a member of the Albany Common Council representing the First Ward, and in the 1750s sold the building to Johannes Radliff, a shoe-maker.  During the 19th century the building was the home, and later factory, of Jared Holt. Holt made waxed thread used for sewing leather goods.
48 Hudson Avenue sits within the core area of the proposed Albany Convention Center. The Albany Convention Center Authority has worked with the New York State Office of Parks, Recreation and Historic Preservation to preserve the structure, mitigate adverse impacts, and recover archaeological resources. The Authority has also spoken with the owner of 48 Hudson Avenue regarding efforts to preserve the building.
As originally built it was a 1 1⁄2-story building, with a steep gable roof of fifty-four degrees. The house measured 23 by 33 feet with one large first-floor room and two lofts. The first floor was brick, while the top portion was pine shakes. The building has many rare features not often preserved in other buildings from its time, including a molded anchor beam, the outline of a jambless fireplace, wide pine exterior siding, wide floorboards, steeply pitched roof beams, and original brick walls.
- History of Albany, New York
- National Register of Historic Places listings in Albany, New York
- Quackenbush House
- Director of the National Park Service (February 1, 2008). "National Register of Historic Places Listings". National Park Service. Retrieved 2009-08-25.
- "Albany Preservation Report" (PDF). Historic Albany Foundation. Spring 2007. p. 7. Archived from the original (PDF) on July 5, 2008. Retrieved 2010-09-04.
- John R. Stevens (June–July 2007). "The Society for the Preservation of Hudson Valley Vernacular Architecture Newsletter" (PDF). The Society for the Preservation of Hudson Valley Vernacular Architecture. p. 3. Retrieved 2009-08-08.
- "Albany Preservation Report" (PDF). Historic Albany Foundation. Summer 2006. p. 2. Retrieved 2009-08-07.
- Paul Grondahl (2008-12-23). "This Old House Under Our Noses". Albany Times Union. Retrieved 2009-08-07.[dead link]
- "State Environmental Quality Review Act Findings Statement" (PDF). Albany Convention Center Authority. May 30, 2008. p. 2. Archived from the original (PDF) on June 8, 2011. Retrieved 2009-08-25.