MonkeyBrains requires LoS to any one of their radios, which aren't all located on Sutro. Permission shouldn't be a problem if the landlord is OK with tenants' satellite dishes on the roof. Even then, you can install any communications antenna (within reason) on areas you control in your lease (e.g. a balcony) thanks to OTARD [1]

[1] http://www.fcc.gov/guides/over-air-reception-devices-rule