"General Construction (GC) and Construction Management (CM) are different services offered by builders - the same people with "different hats". General Contractors are builders in the traditional model: design-bid-build. Architects and engineers fully develop design drawings with a client; completed drawings ("blueprints") are issued for bid, or pricing, to multiple builders; bidders submit lump-sum costs to the client; the client engages the lowest bidder for construction. All subcontractors are selected by the GC, and all costs of materials and labor are private to the GC only. The Construction Manager model is the model we use most at seventy2architects. Our client will typically interview 2 or 3 recommended builders, and these builders submit their fees for CM services to the client: this may be a fixed fee, hourly rates, or a percentage of construction cost. The CM works with the architect and client during the design phase to ensure that the design is on track with the client's budget. Once design drawings are finished, the CM bids the drawings to client-approved subcontractors. All bids are reviewed with the client and Architect - "open book" - all prices are shared with the team. All construction costs - material, labor, fees, insurance - are on the table and open for discussion. Because the CM can apply for a building permit concurrent with bidding, and because the design has been set on track to meet the client's budget, this process can often save several months on the project timeline. Most of our clients appreciate the open-book and collaborative nature of the CM model, as well as the control over the budget and selection of personnel/subcontractors.