Is the Contractor obliged to provide an office on site? What kind of office shall be provided?

Yes. The Contractor shall, taking into account the location and size of the site, at all times provide and maintain an adequate weathertight temporary office. At the minimum, the office shall have the necessary basic facilities, like water, light, and telephone.

 

When practicable or depending upon the nature and complexity of the project, the Owner may require the Contractor to comply with other requirements for temporary structures and facilities per the Contract.