Your Guide to Estimating Construction Cost Per Square Foot in 2023
Construction is a lucrative business. However, construction companies, or those involved in this business, need cash reserves – lots of it, or at least access to credit lines. With construction costs increasing by the year and contractors not getting their payments in time for the projects to take off, estimating the construction cost per square foot may be the need of the hour.
Knowing the construction cost per square foot makes it easier to forecast the budget and the different costs effectively and get more out of the projects.
The construction cost per square foot may vary depending on the area and building. However, you can keep it simple by estimating on average.
Construction Cost Breakdown
Besides overhead expenses, several factors may influence estimating construction costs, including labor, material, equipment, services, and more.
However, the cost to build houses and other such facilities may comprise the following components.
1. Fixed Costs
Fixed costs are expenses that don’t vary over the project timeline. They usually depend on the contracts and the companies that execute them. These may include the purchase of equipment or machinery required for the job and, usually, may be approximately 40% and 50% of the total cost.
2. Variable Costs
Variable costs, as the name suggests, aren’t set rates, and can change, depending on the project and contract. These costs may be time- or quantity-bound and can contribute significantly to the overall cost.
Time-bound variable expenses may include the costs incurred to purchase the materials, and equipment required, wages, and other such charges.
Quantity-based costs make up for a large chunk of the overall cost and may include:
- Direct expenses (materials, equipment, contracts, and sub-contracts).
- Indirect expenses ( general and project-specific overhead costs).
Construction Cost Per Square Foot Explained
You can also estimate the construction cost, depending on the square footage of the area to cover. There are two significant components: the overall construction cost and the total area covered.
The more ground you cover, the less your overall expenses will be. So, many contractors consider entire spaces, while others may go with only half, or possibly, even less.
The following factors may affect construction cost per square foot.
Size
Each room will have different specifications, and the cost to build them varies by square feet. Kitchens and bathrooms are usually the most expensive since they'll need more space to house the cabinets, tiles, countertops, fixtures, plumbing, and electrical connections. Besides this, you'll also need to fix the windows, casework, and shelves, which will further drive up the costs. So, the larger the rooms, the more expensive they'll be to build.
Design
Structures with simple designs cost a lot less to build than complex ones. So this means that the cost to build large complexes, such as apartments, would be much more than houses. Moreover, builders will need more time to complete such projects, which may increase the costs of manifolds. Similarly, floor distribution is another factor that can significantly affect construction costs per square foot. So, two-story houses of 2,000 square-feet cost a lot less to build, than one story, due to a compact form factor. Materials, fixtures, and finishes also affect construction cost per square foot; the more expensive these are, the more you'll need to shell out.
Site Conditions
Building houses or facilities in remote locations with limited access can increase construction costs. Not only will builders and contractors need more vehicles to get the materials and machinery to the site, but they'll also need more cranes and bulldozers, not to mention workers, to load and unload them. Unfavorable site conditions are other significant contributor that adds to the expenses. For instance, you may need to get the foundation right on sloped or stepped sites, while, in other cases, drainage clogs may restrict access to the site.
Contractor
The contractor you choose to go with also makes a difference in the per square foot charges. The cost to acquire the permits can lie between $1,200 and $2,000. However, you must also pay a project management fee of between 5% and 15% of the total cost. Likewise, the architectural plans may cost up to another $5,000, depending on the architect's project requirements, skills, and qualifications.
Construction Cost Per Square Foot by the Zip Code
The per square footage construction cost lies between $100 and $500, whereas the average price is $150. The average construction cost per square foot varies by region and state, but typically, these are the average rates.
Region | Average Cost |
Northeast | $186 |
South | $122 |
Midwest | $140 |
West | $142 |
The average construction cost per square foot by region ranges from $140 to $180, where the prices are the lowest in the southern areas and highest in the northeast.
These costs vary by state, and the national average is $284,000.
How to Use a Construction Cost Per Square Foot Calculator?
You can estimate the construction costs you would incur for every square footage of the covered area using dedicated online calculators designed to give you accurate results.
However, you’ll need to figure out how much a square foot is and the price estimates. The price for every square foot of living floor space is the ratio between the prevailing land prices in that area and the total area covered, where a square foot is 144 square inches since each foot is 12 inches.
You can estimate the project’s total construction cost per square foot by feeding the following elements into an online calculator.
- Price (Purchase price or rental).
- Area in square footage.
The construction cost per square foot calculator will return the project’s total cost. You can then compare this cost with other properties to determine what works best. You can also reverse the equation to estimate the current market value of your house or property by putting in the average price per square foot first.
Closing Words
A construction cost per square foot calculator lets you know how much you may need to spend on a project depending on the purchase price or monthly rental and the area to cover. You can also use the calculator to estimate the market value of your property or compare it with different properties to find the best value.
However, don’t forget to know the price of your house or property for every square footage of living floor space before estimating the average construction cost per square foot.
