Was the open house of this grand-scale 1993 patio home near Memorial Park planned for this coming Sunday afternoon strategically timed for just after the rolling street closures of the 2014 Chevron Houston Marathon? Access to the enclave neighborhood off Memorial Drive falls between marathon miles 20 and 21. The property, asking $1.2 million, is in Arlington Terrace, or so reads the legal description in its listing earlier this month. Neighborhood signage says Arlington Court.