Hospital North — Patient Tower Expansion
- Scale: 268,000 SF
- Discipline: M+E+P
- Format: Design-Assist
Scope focus: Central plant tie-in, 2 new AHUs, duct mains on levels 3–7, med gas risers, 4160V feeders and step-down panels.
Our approach: We traced main trunks first (mechanical and plumbing) to lock routing, then quantified branches by room type. Electrical takeoff distinguished normal vs. critical power to prevent double-counting in patient areas. We tagged alternates for insulation class and VFD adds.
Before → After overlay: Green markup shows routed mains per bid set; amber shows revised IFC realignment around a new imaging suite. Two shafts consolidated into one, reducing total duct transitions.
Outcome: -7.2% HVAC material delta, +1 day install access gain from shaft consolidation, and a clearer med gas riser schedule that closed three pricing RFIs.
Lesson: Locking shaft hierarchy early avoids compounding changes to risers, hangers, and insulation counts.
Tech HQ West — Core & Shell + Fit-Out
- Scale: 412,000 SF
- Discipline: E+Low-Volt
- Format: CM-at-Risk
Scope focus: (12) panel boards, (3) switchboards, bus duct risers, lighting circuits by zone, DAS and access control home runs, server room redundancy.
Our approach: Sequenced by floor plate and typical bay. We created circuit density factors per zone, then validated quantities with egress lighting requirements and IT rack loads. Alternates flagged for daylight dimming and occupancy controls.
Before → After overlay: Violet markup shows original bus duct path; jade shows final path avoiding a structural beam conflict. Device density normalized across typical floors.
Outcome: -4.1% overall electrical rough-in savings, with a clearer BOM for lighting controls that prevented late breaker swaps.
Lesson: Normalize typical bay logic first—then layer special zones (IT, labs, conference) to prevent skewed counts.
Regional Transit — Maintenance & Ops Facility
- Scale: 198,000 SF
- Discipline: M+P
- Format: Design-Build
Scope focus: Compressed air mains, oil-water separator piping, trench drains, gas-fired unit heaters, VRF cassettes in offices, roof penetrations count.
Our approach: We separated industrial bays from admin core and built two estimating assemblies: (1) shop-grade exposed services with seismic bracing; (2) office-grade concealed runs. Penetrations and sleeves were tagged by roof zone to align with warranty exclusions.
Before → After overlay: Blue markup = bid intent; sienna = VE option routing around a longer-span truss bay that netted fewer hangers.
Outcome: $184k savings potential realized without performance loss; clearer sleeve schedule unlocked early procurement.
Lesson: Treat penetrations as first-class quantities—coordinate early with roofing and structural to prevent scope leakage.