I am not sure if there are any first floor 1 bedrooms for sale, but if I were you I'd contact Dave Tapper of Cashin Company. He is the number one agent for San Bruno in our office. He does a ton of business in San Bruno and knows the Shelter Creek complex very well. If there are none availble now he may know of one coming on. His number is 415-370-7195.
The cutting and pasting of the same answer to gain trulia answer points to rate you is getting old.
How about you do a little more then cut and paste and if you seriously want to answer questions find out about what you are supposedly "answering".