55-unit modular apartments

Blue Room House One

Ground-up plumbing delivery for a 55-unit modular apartment project in Denver.

Location: Denver, Colorado
Units: 55 apartments
Delivery: Ground-up modular

Project overview

Ground-up plumbing for 55 modular apartment units.

Sierra's delivered the full plumbing scope for this ground-up modular apartment project, coordinating site-built plumbing systems with modular construction requirements. The work included underground and above-grade systems, domestic water, sanitary and storm piping, roof drainage, fixtures, inspections and added retail and laundry scopes.

Documented project record

Detailed project, change-order and pay-application records are maintained by Sierra's Plumbing. Commercial terms remain confidential.

Underground plumbing gallery

Below-grade piping and riser coordination.

Field documentation of the PVC sanitary layout, branch connections, vertical risers and pressure testing completed during the underground phase.

PVC sanitary branches and vertical risers installed between concrete foundation walls at Blue Room House One — **Sanitary riser layout**PVC branches and vertical stub-ups before backfill

Underground PVC branch piping and risers coordinated beside the concrete foundation — **Branch and riser connections**Below-grade PVC distribution at the foundation

Excavated underground plumbing trench and PVC risers routed alongside a concrete foundation wall — **Foundation-wall routing**Underground piping aligned with the building layout

Multiple PVC sanitary risers positioned at a structural wall opening before backfill — **Unit-wall rough-in**Sanitary risers coordinated through structural walls

PVC sanitary risers set beside a concrete wall opening during underground construction — **Riser coordination**Fixture and vent locations set before close-in

Pressure gauge installed on vertical PVC piping for underground plumbing testing — **Pressure test**Underground piping test and verification

Construction deck with plumbing sleeves and vertical risers coordinated for the next floor — **Slab coordination**Sleeves and vertical risers prepared for the next phase

Underground utilities video

Underground sewer and storm mains.

A field walkthrough of the PVC sanitary and storm mains, branch risers, trench bedding and excavation coordination completed for the 55-unit ground-up building.

6-second walkthroughBlue Room House One

Blue Room House OneUnderground sanitary and storm mains

Underground plumbing walkthrough

Sanitary branches and fixture risers.

A field walkthrough of the below-grade PVC sanitary branches, vertical fixture risers and preparation before backfill inside the building footprint.

8-second silent walkthroughUnderground rough-in

Underground branch rough-inPVC branches and risers before backfill

Oil interceptor video

Oil interceptor installation.

A close field view of the oil interceptor and connected PVC piping during the underground plumbing phase for the 55-unit project.

3-second field viewBlue Room House One

Blue Room House OneOil interceptor and underground connections

Modular hallway walkthrough

Hallway rough-in after the modular set.

A field walkthrough of the hallway plumbing rough-in after the apartment modules were crane-set into position, showing overhead piping, unit connections and coordination through the framed corridor.

26-second silent walkthroughPost-crane modular set

Hallway rough-inAfter modular units were crane-set

Modular trim-out walkthrough

Modular apartment trim-out.

A walkthrough of the finish plumbing inside a set modular apartment unit, including the bathroom fixtures, shower trim and kitchen sink and faucet installation.

9-second silent walkthroughBathroom and kitchen fixtures

Modular trim-outBathroom and kitchen finish plumbing

Mechanical room

Domestic hot-water equipment.

Two A. O. Smith water heaters installed with coordinated copper distribution, isolation valves and temperature gauges for the 55-unit building.

Twin water-heater installationBlue Room House One

Two A. O. Smith water heaters with overhead copper piping, isolation valves and temperature gauges in the Blue Room House One mechanical room — **Mechanical room**Water heaters and copper distribution

Garage plumbing gallery

PVC DWV and insulated PEX distribution.

Field documentation from the garage level showing supported PVC drainage and vent piping coordinated with insulated PEX domestic-water distribution and surrounding trades.

PVC drainage piping supported along the concrete ceiling and wall of the Blue Room House One garage — **Garage PVC mains**Horizontal DWV routing along the concrete garage ceiling

Long horizontal PVC drainage runs supported around the perimeter of the Blue Room House One garage — **Perimeter drainage run**PVC branches supported along the garage wall

PVC DWV piping and insulated PEX water lines coordinated above the garage electrical equipment at Blue Room House One — **System coordination**PVC DWV routed with insulated PEX distribution

Overhead PVC drainage and vent branches connected through the Blue Room House One garage level — **Overhead DWV branches**Garage-level sanitary and vent connections

Insulated PEX domestic-water lines and PVC DWV piping suspended from the Blue Room House One garage ceiling — **Insulated PEX distribution**Protected water lines coordinated beside PVC DWV

Wide view of insulated PEX water distribution and PVC drainage piping across the Blue Room House One garage — **Garage plumbing overview**Insulated PEX and PVC systems across the garage level

Building water systems

Domestic water main and booster pump.

The copper domestic-water main and booster-pump assembly, complete with isolation valves, metering and pressure controls serving the 55-unit building.

Water booster pumpCopper main distribution

Copper domestic-water main and vertical booster-pump assembly with valves, meter and pressure gauge at Blue Room House One — **Water main & booster pump**Copper distribution with pumping and pressure controls

Laundry room plumbing

Laundry drain-trough installation.

A field view of the long drain trough coordinated beneath the washing-machine service connections during the shared laundry-room build-out.

Laundry drain troughBlue Room House One

Long laundry drain trough installed beneath multiple washing-machine service boxes at Blue Room House One — **Laundry drain trough**Coordinated beneath the washer connections

Planning a multifamily or mixed-use project?

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