From HiveWiki

If you have few hoods, upgrade your Foreman's Office and get more out of their power since improved asset quality by Foreman's Office makes the Hoods inside more productive. Upgrades apply to defensive & offensive structures as well as production assets.

• Foreman's Office upgrades the efficiency level of assets.
• You can upgrade any asset, except for your Street.
• There is no limit to how high you can upgrade an asset.

Assets	Requirements	Allows asset of
Foreman's Office	Hide Out	If Foreman's Office size 5: The Bar

[edit] Asset Upgrades

• All assets start out at level 0 (no bonus).
• Each upgrade to a asset increases its level by 1.
• Each upgrade increases the asset's efficiency bonus by 5%.
• Mansion upgrades are restricted based on your current title.