City: McNeil Island State Prison
Neighborhood: Steilacoom WA
Building or Defensible Location: The whole island is a prison compound, lots of razor wire

Attributes:
Only accessible by boat and or helicopter, high chain link fence, lots of razor wire, guard towers, big heavy steel doors, 200 yard open kill zone, it's an island, surrounded by frigid water.

Pros:

• windowsWindows (more like 8 wide 24 inch tall bullet proof glass) for visibility
• Heavy metal doors can be sealed/ heavy duty iron bars
• rooftopRooftop view of approaching hordes
• stockedStocked with food/water/supplies( enough to hold 1500 inmates)
• Able to see clearly from guard towers for miles
• Massive acreage, prison was once self sufficentsufficient in the growth of orchards,farming, cattle/dairy, machine shops, deer are abundant, fishing from docks or shore, shellfish, has it's own power plant.
• manyMany small homes on island for the SRT
• hugeHuge recreation facility to fight off the tediousness of sniping zombies on the shore of Steilacoom.
• docksDocks large enough to accomodateaccommodate vehicle ferries
• ableAble to add other survivors without exceptional drain on resources
• ProbabyProbably very soundproof, which may help keep zombie attentions to a minimum.
• Plenty of blunt weapons, projectile weapons, and easily improvised to become a weapon items.
• What is good to keep bad people in, is good to keep worse people out.
  

Cons:

• Only accessible by boat or hellicopter,helicopter, don't think zombies can swim though
• Must leave island to resupply, or to escort provisions from mainland (20 minute ferry ride) however, train lines are close to mainland ferry dock
• Every one would want to be there, some will have to be turned away

In the case of an outbreak, will you be allowing other survivors to join you here?
Yeah, if you're not an asshole or sporting any bite wounds.