Alexan Silber Apartments in Houston, Texas. 1-1 in the Spring Branch area of Houston is a brand new property offering everything from daily trash pick-up to rooftop terrace to granite counter tops to state-of-the-art stainless steel kitchen appliances. This great Spring Branch apartment residence is located just minutes away from downtown Houston, upscale Galleria shopping in Uptown and Washington Avenue Midtown entertainment venues. Find anything and everything you would possible need or want at at this brand new luxury Alexan Managed apartments off of Interstate 10 two seconds west of the 610 Loop.