A smaller section of 90 homes, called Carderock Springs South, sits inside the Beltway but shares use of the swim and tennis facility. Bennett is also credited with setting a Montgomery County precedent by burying electricity and telephone lines for maintenance and aesthetic reasons, as well as introducing the county to cluster zoning, in which house lots may be reduced to allow more green space in a community. The community sports center became complicated to execute, Bennett said. The facility required huge pipes buried beneath it, and they had to extend a great distance to connect with other utilities. About 20 houses come up for saleeach year, and they have been selling quickly.
Streets are quiet, hilly and tree-lined.
Residents quickly point out the absence of overhead utility lines, except in one of the oldest sections, and how that contributes to the neighborhood'swoodsy feel. Everyone walks, everyone hikes and most have dogs. Historically, the neighborhood has attracted plenty of international families, many associated with the World Bank, the International Monetary Fund and the embassies. Residents say they think that these families come for the schools, a style of house that is more familiar to Europeans than the center-hall Colonial, and the ease with which mobile families can fit in. Kellermann, who is from Switzerland and whose American-born husband works for the U.S. Agency for International Development, said the club's setting amidhills reminds her of the Swiss Alps and the lively mix of nationalities makes her feel at home.