Or, it's about to fall out of escrow (for any number of possible reasons). If you want me to check on its status with the listing agent on your behalf, please let me know. This house is 3 blocks from mine . . . awesome neighborhood! You could look at 6521 Lochmoor, San Diego, CA 92120 which IS available to purchase and has some similarities.
This property is "Pending". It went into contract on June 26th and is probably near the end of its escrow. Are you looking for a home in this particular area or other regions of San Diego?
Let me know if I can be of assistance to you! Feel free to email me at CoppinRE@gmail.com.