A city of 59,038 people that rides the oil cycle does not build apartments on hope, so the first job on any multifamily project here is the rent roll, not the roof. We have a view on both. Our job is to build the building for the number the owner and the lender can defend, and to say so when the program and the budget do not line up.
Multifamily means different things in different parts of the county. In Casper it can be a three-story garden complex on a cleared parcel, an infill building near downtown or a conversion of an older commercial block. In Mills, which grew from 3,461 to 4,034 residents between 2010 and 2020, and in Bar Nunn and Evansville, it is more likely a smaller complex on the edge of town. Each setting changes land cost, utility capacity and the buyer's tolerance for rent.
We build wood-frame garden apartments, townhome-style rows, mid-rise buildings and renovation projects for owners and developers. Many projects begin as multifamily developer pro formas, and we help test them with real construction numbers before they reach a lender. If the site is near downtown and the market is strong, mixed-use construction may fit better than a plain apartment block.
The Casper area has seen what happens when one industry leaves. The former Amoco refinery property closed in 1991 and eliminated hundreds of jobs, and a joint powers board was created in 1998 to oversee redevelopment. The Sinclair refinery, by contrast, completed a roughly $200 million modernization reported in 2016 and employed 145 people plus contractors at the time. The contractors are the housing story: they come in for turnarounds and leave.
That suggests two kinds of demand. One is stable, local renters who work in health care, education, government and retail. The other is temporary, tied to project crews and oilfield work. We do not guess which one a project is serving. If the owner is chasing temporary demand, we talk about durability, furnished-unit options and ways to convert units later. If the owner is serving local renters, we talk about finishes, amenities and noise.
Most apartment buildings in this market are wood-frame structures on concrete foundations with slabs on grade or crawl spaces. The frame is efficient and fast. The risk lives in the details: fire separations between units, sound isolation, moisture protection during construction, and flashing at windows and balconies. We detail each one and inspect it before it is covered.
Mechanical choices matter in Casper's cold. Individual heating and cooling per unit gives tenants control and cleaner metering, while central systems cost less to install in some layouts. Water heating, ventilation and corridor pressurization depend on the building size. We price the options at schematic stage and show the owner the life-cycle cost. For smaller buildings in the same family, see student housing construction and senior living construction.
The City of Casper's climate criteria list climate zone 6B, a 3 foot frost line to the top of footing, a 3,000 air freezing index, severe weathering, seismic design category B and 115 mph 3-second gust wind (exposure C) for one and two family dwellings. Snow load comes from 2024 IBC Table 1604.5 and the ASCE Hazard Tool. These numbers set footing depth, roof framing and exterior finishes, and they are the numbers the engineer will use.
Commercial permits, which include apartment buildings, often require a life-safety plan, engineered drawings and Planning/Zoning approval. Plan review looks at structural calculations, engineering reports and specifications, and an issued permit is good for 180 days. Outside the city, county and town rules differ, so we confirm the jurisdiction. Mills, for instance, has its own Building and Inspections and Planning and Zoning departments.
Apartment schedules turn on how fast the shell goes up and gets dry. We schedule selected carpentry and concrete work where it keeps the framing sequence moving, and we manage temporary protection. A wood-frame building that sits open in snow takes on moisture that shows up as mold and warped finishes months later. A tarp is cheaper than a lawsuit.
We stage framing floor by floor, close in each level as soon as the roof is on, and keep the building heated during interior work. Where snow is forecast, we cover open floors the same day. Drywall and flooring do not start until the building is dry, measured and logged. This is the most useful discipline we bring to the work and the one owners most often thank us for later.
The big lines are the structure, the mechanical and electrical systems, the kitchens and baths, and the site. Site cost varies the most: utilities to the property, stormwater, retaining walls on sloped lots and paving for parking. Casper owners often assume the building is the cost and find that the site is half of it. We carry site costs line by line.
The cost of delay in multifamily is rent not collected. A building that opens two months late loses two months of income on every unit, plus carrying costs. We price the schedule as carefully as the materials and use phased turnover when the owner can lease early floors or buildings while later ones finish. A Mills project and a Casper project of the same size can differ by a full utility upgrade.
Send us the parcel, the unit mix and the rent you expect. We will price the building and the site and tell you whether the numbers meet.
Sometimes, and it depends on the rent, land and construction cost. Casper has 59,038 residents and an economy tied to energy, health care, education and government. We build cost models with real quotes so the developer can test rent assumptions against construction cost. Smaller phased projects often work where larger ones would not.
By closing in quickly and covering every open floor. We stage framing so each level is covered as soon as possible, tarp open decks when snow is forecast, and keep the building heated during interior finish. We measure moisture before drywall and flooring and keep a log. Wet lumber that is trapped inside a wall causes costly problems later.
Footings must go at least 3 feet below finished grade, and slabs need protection until they are enclosed. We plan foundation work for the warm season where we can, and we use blankets and heat when we cannot. A winter foundation start costs more, and we say so in the bid.
With assemblies and details: staggered studs or resilient channel, insulation, sealed penetrations, and floor-ceiling systems with topping or underlayment. Sound is cheap to fix on paper and expensive to fix after drywall. We review the assemblies with the architect and inspect them as they are built.
That is negotiated with the utility and the jurisdiction. Water, sewer, power and gas all have connection requirements, and capacity limits can push costs onto the project. We ask for will-serve letters and cost estimates before the pro forma is locked. A utility surprise is the most common budget problem we see on a first apartment project.