Residential & Multi-Family
Multi-family lives or dies on repetition done right. We deliver construction-ready MEP with stacked, riser-disciplined systems that keep the field predictable, satisfy ASHRAE 62.2 unit ventilation and local EV ordinances on the first pass, and hold operating costs down for the life of the asset — coordinated with your team and sealed by the licensed engineer of record on your project.
Hundreds of Units, One Coordinated System.
One unit designed well multiplies across the building, and one mistake does too. We engineer stacked, riser-disciplined systems that cut field labor and change orders, hold per-unit ventilation and compartmentalization to ASHRAE 62.2, meet electrification and EV ordinances on the first pass, and keep operating costs down — coordinated with your team and sealed by the licensed engineer of record on your project.
HVAC & Unit Ventilation
Unit-level comfort and code-mandated fresh air that multiply cleanly across the building.
- Room-by-room Manual J/S/D loads with whole-unit ventilation to ASHRAE 62.2
- Heat-pump and split-system selections aligned with local electrification ordinances
- Compartmentalization and unit air-sealing so air doesn't migrate between dwellings
- Corridor make-up air and pressurization tied to the unit ventilation strategy
- Enclosed-garage exhaust with CO sensing and fan staging per the IMC
- Code-routed dryer and bath exhaust with transfer-air and acoustic separation away from bedrooms
Electrical & Power
Service, metering, and EV capacity sized to the ordinance — not guessed.
- Service and feeder calculations per NEC Article 220 (standard or optional method)
- Meter stacks, house panels, and dwelling-unit load diversity
- EV-ready, EV-capable, and EVSE-installed stall counts per local ordinance and IECC EV provisions
- Elevator, trash-compactor, amenity, and house loads captured in the service calculation
- Electric-ready provisions for future appliance electrification where mandated
- Corridor, stairwell, and common-area egress and emergency lighting with code-compliant controls
Plumbing & Domestic Hot Water
Risers and hot water that perform at the farthest unit and the worst-case morning.
- Stacked DWV and supply risers engineered once for predictable, repeatable construction
- Recirculated domestic hot water balanced so the farthest unit isn't the coldest shower
- Central plant sizing — gas, condensing, or central heat-pump water heating (CHPWH)
- Water and gas demand calculations with fixture-unit diversity
- Per-unit submetering strategies for cost recovery
- Storm and sanitary collection coordinated through the podium transfer
Fire Protection & Life Safety
Sprinkler basis matched to the construction type and height, not assumed.
- NFPA 13R vs. NFPA 13 basis set by construction type and stories above grade plane
- Standpipe and fire-pump coordination for mid- and high-rise
- Concealed-space and balcony sprinkler coverage per the IBC
- Fire-alarm and smoke-control pathway coordination across disciplines
- Garage and below-podium areas designed to full NFPA 13
Repetition & Coordination
Repeatable details that cut field labor and change orders.
- Repeated unit types engineered once and stacked floor to floor
- BIM coordination across stacked risers and the podium transfer level
- Acoustic isolation routing equipment and waste paths away from bedrooms
- Electrification and EV readiness aligned with local ordinances
- Clear riser and chase coordination so trades build the same thing every floor
Quick answers about how we deliver design support for this sector.
Through stacked risers and repeated unit types: one unit designed well multiplies across the building, which cuts field labor and change orders. We engineer the repeatable details once — supply and DWV risers, unit HVAC, panel layouts — and coordinate them in BIM through the podium transfer so the crews build the same thing every floor. That repetition is where multifamily either holds its schedule and budget or bleeds them.
Yes. We design EV-ready, EV-capable, and EVSE-installed stall counts to your local ordinance and the IECC residential EV provisions where adopted, then size the service per NEC Article 220 to actually carry them. Where electrification rules apply, we provide heat-pump-ready and electric-ready provisions so the building can drop the gas connection now or later without re-pulling the service.
Per NEC Article 220, using the standard method or the optional method for buildings with lower diversified load. We carry dwelling-unit diversity plus the amenity, elevator, trash-compactor, and house loads into the calculation, so the service reflects how the building is actually used — with the headroom the EV and electrification ordinances demand documented in the basis of design for the licensed engineer of record on your project.
We design whole-unit mechanical ventilation to ASHRAE 62.2 with local exhaust at kitchens, baths, and laundry, and we hold compartmentalization so air doesn't migrate between dwellings or in from corridors and garages. Acoustic separation drives equipment placement and duct routing from the start, keeping fan and waste-stack noise paths away from bedrooms and quiet spaces.
Yes, and getting it right early matters. We confirm the sprinkler basis against the construction type and the stories measured from grade plane: NFPA 13R can apply to qualifying low- and mid-rise residential, while below-podium and taller buildings require full NFPA 13. We coordinate standpipes, fire-pump sizing, and concealed-space and balcony coverage with the architect and the fire protection engineer of record so the basis holds at plan review.
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