Camp Siegfried was transformed into "German Gardens", a planned community which had been approved by the Town of Brookhaven in 1936. Located along Upper Lake, part of German Gardens where streets named after Hitler, Joseph Goebbels and Hermann Göring were not changed until 1941.

Technically a co-op, the League's by-laws included a restrictive covenant that all home-buyers had to be mostly "of German extraction." This was struck down by a federal judge in 2016 as the result of a lawsuit, and the community's bylaws were rewritten to require it to comply with all fair housing laws, at the federal, state and local levels, but the discriminatory practices continued despite this, with the League making it difficult for homeowners to sell.