Walker & Dunlop has closed a $33.5 million green loan for the refinancing of The Place at Castle Hills, a 680-unit multifamily community located at 11800 Braesview Drive in north San Antonio. The Class B, garden-style property offers one- and two-bedroom units and amenities such as pools, a fitness center, spa and walking trails. Alex Inman of Walker & Dunlop placed the loan on behalf of the borrower, Arizona-based MC Cos. through Freddie Mac’s Green Up program. The proceeds will be used to refinance existing debt and to fund the installation of environmental improvements including low-flow kitchen/bathroom aerator faucets, toilets and showerheads.