Knowledge Center/Planning and Delivery

Planning and Delivery

Construction Manager vs. General Contractor: What Commercial Owners Need to Know

Compare responsibilities, contract structures, timing, and risk before choosing a project delivery team.

Direct answer

A general contractor is normally responsible for building the defined work and coordinating the subcontractors, materials, site operations, safety, and completion. A construction manager may act as the owner's professional adviser or may later become contractually responsible for construction as a construction manager at risk.

The title on a business card does not establish responsibility. The agreements, scopes, and risk allocation do.
Written by Keystone Development

Owner education for clearer commercial construction decisions.

01

Working definition

General contractor

The party contracted to execute the construction scope, usually by managing its own forces, subcontractors, suppliers, logistics, safety, quality, and closeout.

A general contractor can also provide preconstruction services when the agreement includes them.

02

Decision table

Three roles that owners often group together

ConsiderationGeneral contractorAgency CMCM at risk
Primary roleBuilds the defined scopeAdvises the ownerAdvises, then delivers construction
Typical entry pointLate design or after designEarly planningDuring design
Holds trade contractsUsuallyUsually notUsually
Cost exposureDepends on contractRemains largely with ownerPartly transferred by contract
Strong fitDefined scope and procurementIndependent owner supportEarly builder input and one construction contract
03

Decision sequence

Choose the structure before choosing the firm

01

Map the owner's capacity

Decide who can manage design decisions, cost reporting, procurement, stakeholder communication, and field issues.

02

Define when construction input is needed

Projects with phasing, long-lead equipment, occupied operations, or difficult existing conditions often benefit from earlier constructor participation.

03

Allocate risk deliberately

Identify who owns design coordination, trade contracts, cost reporting, schedule performance, and changes before proposals are compared.

04

Test the contract language

Confirm that the agreement supports the management model that was described during interviews.

04

Signal check

What a well-structured proposal reveals

Evidence of clarity

A clear list of included services

Named cost and schedule deliverables

Defined authority for approvals

Transparent subcontractor procurement

A closeout and warranty process

Reasons to slow down

A title used in place of a scope

Unclear ownership of design coordination

A guaranteed maximum price presented as a total project guarantee

Overlapping fees without defined value

No process for contingency or changes

05

Take to the meeting

Questions to ask every candidate

  1. Which contracts will you hold?
  2. When does your cost responsibility begin?
  3. Who validates the design against the budget?
  4. How are trade bids opened and compared?
  5. Who controls contingency and receives any unused balance?
  6. What remains the owner's responsibility?
06

Questions, answered

Common owner questions

Is a construction manager always the contractor?+

No. An agency construction manager advises the owner and normally does not hold the trade contracts. A construction manager at risk generally becomes responsible for construction under a separate construction agreement.

Does a guaranteed maximum price eliminate changes?+

No. A GMP is governed by its assumptions, allowances, exclusions, documents, and change provisions. Owner changes and conditions outside the agreed scope can still affect cost.

Technical references

Sources and scope

Keystone uses these resources to frame owner education. This guide is general information and does not replace project-specific review by qualified design, construction, roofing, code, legal, or financial professionals.

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