constructioncontractordesignplanning
Design-bid-build vs design-build for a splash pad: which is better?
Quick answer
Design-build is faster and cheaper for splash pads (single contract, integrated team, 6-9 months total) and is now the dominant model. Design-bid-build (separate architect then contractor, 12-18 months) is mostly used by large municipalities required by procurement law to bid drawings competitively.
Design-bid-build separates design from construction: a landscape architect or civil engineer produces full bid drawings, the city advertises for sealed bids, and the lowest-responsive contractor builds what's drawn. It takes 12-18 months total, can produce adversarial change-order disputes, and is required by procurement law in many states for projects over a dollar threshold. Design-build packages design and construction under one contract, usually awarded via RFP based on qualifications and price. The team collaborates from concept through warranty, value-engineers in real time, and finishes in 6-9 months. Most splash pads under $1.5M now use design-build because manufacturers like Vortex offer turnkey design-build packages with a national contractor network. Hybrid CMAR (Construction Manager at Risk) is gaining popularity for larger park master plans where the splash pad is one component of a bigger build.