Delivery Models

Design and Construct

Design and Construct is a project delivery system where design and construction services are contracted by a single entity known as the design–builder or design–build contractor.

The traditional delivery model had a segmented approach up until design and construct was introduced. On a successful design and construct project the lead contractor has to understand the architectural content, and the aesthetic and circulation purposes.

This project delivery system is gaining popularity for several reasons:

  • There is a single point of responsibility
  • It minimises risks for the project owner
  • It decreases the delivery schedule by overlapping the design and construction phases
  • It’s easy for clients to deal with issues because one contractor is responsible for all work on the project

Managing Contractor

Managing contractor engagement (or Construction Management) is a collaborative approach where the building contractor is sourced during the design phase of a project. During the pre-construction, procurement and construction delivery stages, the builder forms part of the team alongside architects and engineers.

A fee for service is based on the estimated construction price. The builder works with the client and the design team to assist in:

  • construction techniques
  • material selection for budget purposes
  • project programming
  • procurement of the sub-contract trades

Sub-contract trades can make up between 79% and 86% of final costs in commercial construction projects, so managing contractor engagement is an efficient way to obtain competitive pricing while managing client risk.

Building Contractors

Engaging a head contractor involves sending completed design documents to three or four builders to source prices to complete construction for a project. The builder has no input into the design or constructability and takes no risk for documentation errors or omissions. This style of delivery is often referred to as a ‘Hard Money Tender’ or ‘Lump Sum Pricing’.

Walford School Gymnasium, Education

“I have no hesitations in recommending the services of Kennett Builders for any building works you may be considering.”

Marcia Penn, Residential Services Manager
Helping Hand Aged Care