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Magnolia Science Academy 1

The Magnolia School Academy #1 project is a new, fully-sprinklered, wood-framed (Type III-B), 3-story classroom building for grades 9 thru 12. The first and second floor involves the build-out of 20 classrooms as well as staff offices, administration spaces, and bio and tech labs. There is a rooftop play area on the 3rd floor. In addition, the project involves the patching of the existing parking space.

Oltmans Construction Co. is self-performing all carpentry trades including concrete, drywall, framing, and doors/frames/hardware. The Magnolia Public Charter School project is privately funded and is on private property. Therefore, the project is not under DSA.

Square Footage: 25,228 s.f.

Providence Breeze 2A

Tenant Improvement for 10,000 s.f. of existing facility and a 3,000 s.f. addition with an indoor therapy swimming pool. The project also includes remodel of existing parking lot and site work. When complete, the space will be used for physical therapy.

Square Footage: 10,420 s.f.

PIH Bloomfield MOB, Community Health Integrated

SANTA FE SPRINGS, CA – February 5, 2018 – Congratulations to Bloomfield Medical Office Building, PIH Health’s first ground-up primary & specialty care facility in Santa Fe Springs. Read More ››

Moreno Valley Community Health Center

The Moreno Valley Community Health Center was a conversion of an existing facility owned by Altura Credit Union into a two (2)-story tenant improvement project for the County of Riverside University Health System (RUHS). The project underwent a design/build MEP-FS process as well as required significant structural retrofits in order to achieve the Architect’s open design intent.

Architectural features in the final space included Herman Miller Healthcare System casework and furniture, axiom ceiling clouds located above each of the three (3) residency group spaces as well as specialty finishes such as oversized Spectrum architectural lights in all the main areas, 3form privacy screens in the check-in counters, custom linear wood ceilings and graphic wall coverings.

Healthcare Center programming include:

  • X-Ray room
  • 27 exam rooms
  • Two (2) procedure rooms
  • Three (3) soiled utility rooms
  • Three (3) clean utility rooms
  • Three (3) medical equipment rooms
  • Conference rooms
  • Three (3) residency group spaces
  • Two (2) staff break rooms/lounge areas
  • Staff patio addition
  • Two (2) patient waiting areas
  • Blood draw/specimen collection room

Square Footage:


26,000 s.f.

Harbor 69-12KV Substation

Oltmans partnered with ABB, Inc. to design and build a new turn-key 69/12kV 112MVA Harbor substation. Due to its proximity to the Disneyland Resort special provisions were made during construction to control noise and restrict construction parking. The final design of the project required special noise control and a design that blended into the street to hide all substation equipment from street and rooftop view.

The project includes:

  • One partially enclosed structure holding two power transformers with appropriate ventilation, fire wall and oil containment.
  • One completely closed building holding the GIS/ Metal Clad Switchgear, relays, control panels, capacitor banks, etc.
  • Two outdoor pad mount SL&P transformers with ATS.
  • Fire alarm, security system, motor operated gate, venting, HVAC, lighting, landscaping, grading, grounding system, noise control, restroom and asphalt paving.

Square Footage: 37,400 s.f.

Ganahl Lumber Costa Mesa

Veterans of their respective crafts, Ganahl Lumber (established in 1884) trusted Oltmans Construction Co. (established in 1932) with the preconstruction and construction of their newly-relocated retail and lumber yard facility, located on seven acres in Costa Mesa. The new location, adjacent to the original building, provides a larger storage area to support a greater inventory and product mix, higher energy efficiency, and space for a more expansive showroom.

The project consisted of 60,000 s.f. of retail space with an exterior skin made of glass and masonry. The facility also included a rooftop parking structure composed of wood and concrete, and over 150 glulam beams. Other components of the project are a 33,000-s.f. storage and mill shed, a 6,800-s.f. three-sided pole shed, and numerous racking systems (t-sheds) for additional storage of merchandise.

Preconstruction

Oltmans assisted the design team through design development and construction document development, established a GMP, provided cost/value analysis and supported entitlement procurement. Due to a ground-lease agreement with the Orange County Flood District (OCFD) and the location at the foot of the I-73 freeway (owned by Caltrans), the Ganahl Lumber Costa Mesa site crosses three (3) entities with jurisdiction, including the City of Costa Mesa Building and Planning Department. Substantial coordination was required and a third-party consultant was hired to ensure that the entitlement and permitting completed without delay. Within the Caltrans District 12 department alone, Oltmans supported plan check, planning, and entitlement with over twelve (12) different engineers and departments.

Composite Wood and Concrete Rooftop Construction

This parking structure is one of the first composite wood and concrete rooftop parking structures in the nation. Each glulam beam its comprised of consisted of up to eight (8) 4” x 4” notches which piece together and act as the composite wood/concrete roof structure system. To speed up this process and accelerate the project schedule, the glulams were ordered in advance and staged on the storage and mill shed building pad footprint to be used as a workspace for glulam beam notching on the ground. The overall notch-prepping process took two (2) months on the front end, but was able to reduce rooftop erection time to 1.5 weeks at a rate of 20 to 30 beams a day.

Schedule Recovery

2016 yielded one of the greatest amounts of rainfall in the past decade with the most precipitation falling during site grading and over-ex. At the end of each day, each glu-lam had to be covered and protected from inclement weather and grading was halted until the rain stopped. To recover the schedule, Oltmans successfully worked with Ganahl Lumber to finalize the layout of the retail store early so that the proper underground utilities could be completed to pour the slab on grade (SOG) early. With the SOG completed earlier in the sequence, weather delay was reduced because the slab dried quicker than the compacted dirt. Roof erection also sped up because the SOG allowed for easier maneuvering of the crane, assisting with the hoisting and setting of the pre-prepped glu-lam beams. During relocation from the old store to the new one, Oltmans was also mindful of turnover sequence to minimize Ganahl’s potential revenue/time loss and support the owner’s financial initiatives. Oltmans deliberately turned over the lumber mill in the new store early, so as to prevent any disruption to Ganahl’s service. Orders from the old store were able to be serviced at the new store even during the construction process.

Square Footage


60,000 s.f.

Downtown West Medical Office Building

The new Downtown West Medical project marks the first substantial healthcare investment in a historically under-served Los Angeles area. The success of this initial development could herald further healthcare investments in the area. The project is a contemporary 4-story, 60,000-square-foot outpatient medical office building and 9-story parking structure situated at Washington Boulevard and Hoover Street at the I-110/I-10 freeway intersection. Real estate investment firm Robhana Group and development firm Inception Property Group have already leased out the new building to HealthCare Partners, a DaVita Medical Group. It will be used for primary and urgent care services.

Square Footage:


60,000+ s.f.

Citrus Pump Station Office & Storage Building

Oltmans Construction Co. is a subcontractor under Ames Construction (GC). Our scope involves the construction of an office buiding and a storage building at the Citrus Pump Station for the Department of Water Resources.

Square Footage


6,000 s.f.

AES Deployment Center

Convert existing metal building into showroom to include furring out exterior walls with soffit lighting, sanded and polished concrete floors, updated to new LED lighting throughout, convert existing overhead doors to storefront entry system, new mechanical system with exposed spiral duct. Work also includes upgrading the existing office area with new dry erase coating on walls, new ceiling tiles also with upgraded LED lighting, refurbishing the existing mill work and installing screen wall to hide the electrical transformers. Exterior improvements include removing and replacement of asphalt pavement,replacing deteriorated metal skin and skylights and new painting.

Square Footage:


468 s.f.

Nova Academy

The Nova Academy 42,199 s.f. tenant improvement project is a seismic retrofit and conversion of an existing 4-story office building into a charter high school. The construction scope of work included complete demolition of the existing space, seismic retrofits: installation of 32-metal braces throughout the building and structural steel reinforcement on the 2nd floor patio as well as all interior buildout.

Accelerated Schedule

The Oltmans project management team coordinated closely with Berliner Architects & Nova Academy to ensure project delivery in time for the new school year. To reach the grand opening date, Oltmans began construction activities while design was at 65% completion. Other strategies utilized were early ordering of long lead items such as steel braces, strategic overtime work towards the end of the construction schedule and consistent communication between Berliner Architects, Nova Academy and Oltmans Construction.

Square Footage


42,199 s.f.

Beach Boulevard Medical Pavilion

Construction of new single 2 story, 44,500 s.f. medical office building, Oltmans scope included core & shell construction, complete site work and landscaping improvements, and renovation of an existing parking structure. Project highlights include white oak stairs, European lobby wall tiling, and an iconic surfboard sculpture symbolizing the Huntington Beach lifestyle. Coordination between building tenants (MemorialCare and Fresenius Medical) and their contractors allowed this facility to be operational shortly after Oltmans scope was complete. Renovation of the existing parking structure required close collaboration between the Ware Malcomb, Oltmans, and our subcontractors to provide an innovative solutions for this aging structure. The pavilion will be a Class A medical office building located along busy Beach Blvd in Huntington Beach.

Building Features include:

  • On-site free surface and covered structure parking
  • Close proximity to the 405 freeway
  • Approximately 58,000 cars per day along Beach Boulevard

Square Footage:


44,500 s.f.

Bloomfield Medical Office Building

The three-story, 35,076 square-foot facility provides the local community with access to high-quality medical services close to their homes and places of work. While PIH Health has updated and revamped many existing medical offices throughout the area, this is its first completed ground-up construction project in the Santa Fe Springs/Norwalk area. Centrally located between PIH Health Hospital – Whittier and PIH Health Hospital – Downey, the new Santa Fe Springs medical office building brings multi-disciplinary care to the neighborhood coupled with the latest in medical technology and facility design. The Bloomfield Medical Office Building offers the following services:

  • An Eye Care Center.
  • A Family Medicine office where primary care is offered for the entire family.
  • An Orthopedics & Sports Medicine office where patients can be seen for a wide range of services related to diagnosing and treating bone and joint conditions.
  • A Radiology Department providing X-rays when necessary.
  • An Urgent Care Center that is open daily, including holidays.
  • A Community Pharmacy where prescriptions can be sent by your physician electronically after an appointment, filled by a pharmacist, and conveniently purchased on the way out.
  • One centralized lobby and check-in area welcomes visitors to expedite patient registration. There is open space on the building’s third floor for added services that will reflect the evolving needs of the community.

Building exterior features: The ground floor of this 3-story, steel building is clad in granite while the second through third floors are clad in pre-finished metal panels and ribbon windows. The facility has a larger “sister”, building on the PIH Hospital campus, the Ernest D. Wells Medical Office Building, with a very similar façade that serves as a type of branding for the Hospital.

Building Area: 35,076 s.f.

Site Area: 101,362 s.f.

Pacific Medical Office Building

Design / Build project of a two (2)-story core and shell medical office building for Pacific Medical Buildings. Oltmans scope included a 25,218 s.f. facility (68,535 s.f. site) with painted concrete tilt-up panels, storefront and curtain wall glazing as well as all associated on and off site work.

Square Footage

Total Building Area: 25,218 s.f.

Lot: 68,535 s.f.

Laguna Woods Clubhouse 2 Renovation

The Laguna Woods Village is a retirement community located in Southern California. This project is a 12,500 s.f. renovation of an existing historical building that includes new construction of a storage building, a loggia structure and adjacent site improvements.

The scope of work includes restoring of the original terra cotta tiles on the exterior of the building, updating & refurbishing the clubhouse & ballroom trusses, doors & windows, installation of new ceramic tiles throughout the restroom & kitchen, updates to the ceiling fans & chandeliers and restoration & upgrades to the roof structure & tiles.

The project involved coordination with the surrounding Laguna Woods Village Community to maintain a secure construction site while still allowing access to posterior golf cart paths, thus reducing the impact of construction on the local community.

Square Footage


12,500 s.f.

Kaiser Permanente Santa Monica Medical Office Building

Construction of an 8-provider, plus required support services on the 2nd floor of a Medical Office Building located in Santa Monica CA (8,672 gross sf).

This lease tenant improvement falls under the RAD (Re-Imagining Ambulatory Design) concept. The basic requirements call for (6) Primary care providers with (2) specialty providers. These provider spaces will be supplemented with nursing modules and support spaces.

A key component of the design of the space is flexibility as there is a limited footprint to work within.

Square Footage 8,672 s.f.