What's the difference between a union house and a union worker's house?

What's the difference between a union house and a union worker's house? Trade union: a bridge between employees of a company or department and the company or department, which has obvious political and economic characteristics.

Guild: a relatively loose collective or organization, which can be called a guild in a broad sense, such as team clubs, charities, players' gatherings, etc. Members can be simple or complex; Can have the same goals, hobbies, personal direction, interests and so on.

That is, the trade union is the home of enterprise employees, an organization aimed at safeguarding the interests of employees, and a legal organization protected by law. And the guild is spontaneous.