The Oser House is on Stenton Road just off Old York Road in Elkins Park, about one-and-a-half miles north of Ahavath Israel Synagogue in Philadelphia and about one mole south of Frank Lloyd Wright's Beth Sholom Synagogue also in Old York Road in Elkins Park.
In Goldhagen's Louis Kahn's Situated Modernism we read:
"In 1951, the [Adath Jeshurun] synagogue's leaders purchased a large polygonal site in Elkins Park, where many of its members were moving. The short end of the lot faced a major thoroughfare, and the remainder sloped back into a more pastoral setting that was bisected diagonally by a small stream (Fig. 4.1)."
And the caption of Fig. 4.1 reads: Sketch of the Elkins Park site for the Adath Jeshurun synagogue, 1954. From the Kahn Collection.
These citings convey misinformation. Kahn's design for Adath Jeshurun was sited on Old York Road within Philadelphia. Kahn's design was never executed, but Adath Jeshurun did ultimately build a new synagogue on a site (within a more pastoral setting) further north up Old York Road in Elkins Park. [This site misinformation is also conveyed within Louis I. Kahn: Complete Works 1935-1974.]
Goldhagen also mentions Wright's Beth Shalom [sic] synagogue. Beth Sholom is about a mile further north up Old York Road from the current Adath Jeshurun and about two miles north of Kahn's site for Adath Jeshurun.
Just coincidently, Kahn's first independent build work, the quondam Ahavath Israel synagogue, is about a half mile away from the Philadelphia site of Adath Jeshurun. And Kahn's Oser House is practically across the street from the bult Adath Jeshurun in Elkins Park. And Trumbauer built three Elkins' mansions for which Elkins Park is named. It's like a little architectural mecca along an ancient Indian trail.
visited Kahn's grave today
Kahn is buried at Montefiore Cemetery. It's in Rockledge (with a Jenkingtown zip code, I think), and more or less in my neighborhood now. I learned that Kahn was buried there a couple years ago, but never pursued it further. Since Kahn's death day was yesterday, and it was a really nice day here, I decided to go find his grave. And that's what I did. Turns out the grave is within easy eyesight of a road I've driven down innumerable times over the last 30 years.
While on my walk through Pennypack Park this morning, I tried to think of what Kahn building is now closest to his grave, and I think it's the Oser House in Elkins Park. The next closest would be either Pennypack Woods housing and commons, Ahavath Israel, Esherick House, Korman House or Fisher House.