How to Estimate Construction Costs for New Homes and Remodels

The ability to estimate construction costs spot-on depends on the person responsible for evaluating it. As accuracy in cost estimation is very important in planning a new home and remodeling the project. It lays a foundation for a successful residential project. Usually, high-class contractors and estimators perform the estimation process. They aim to estimate the exact cost so that the homeowners do not run out of budget. If you are a new contractor or an estimator in this industry then you must realize the importance of providing accurate estimation.

Achieving accuracy in the Construction cost estimation process is a strenuous task. It requires years of experience and smart strategies to cut costs and save plenty of budget and time. To estimate construction costs for new homes and remodels you must have a detailed idea about the market. Following are the various aspects of the market that you must know

1. Local Building Costs

Make yourself clear about the average costs of materials and labour according to the location

2. Material Availability and Price

Stay current with the prices and the construction materials availability. Sometimes, there is a shortage of materials required for the project. So, before deciding which material to go for, check the availability.

3. Labor Market Conditions

What are the current market wages for both skilled and common labour? Because if there is a high demand for labour then it will cost you more!

4. Economic Conditions

You must have a total grasp on what the economic condition is. As, the material cost and other expenses are influenced by the inflation rates.

5. Real Estate Market Trends:

Look into the real estate market about what is trending? It can increase the sale price and you can earn more profits.

6. Competition

Keep checking on your competitors’ strategies so that you can compete with them by launching a better strategy.

7. Client Preferences and Expectations

The key to accuracy is understanding the client’s desires. What are their preferences and what do they expect at the end? This can guide the level of finishes and features you propose.

Follow Guidelines to Estimate Construction Costs!

 1. Clearly Understand the Framework

Before starting your calculation process do not forget to fully understand the framework of the project.

  • For New Homes: Number of rooms, square footage, architectural style, and specific features ( roofing, windows, and flooring).
  • For Remodels: Areas to be renovated, the extent of the changes (cosmetic vs. structural), and any additions.

2. Research Local Building Costs

In the United States, the cost of residential buildings is different in every location. Some states are more expensive and few are less expensive. That is why research the average costs per square foot in your area for both new construction and remodelling.

3. Break Down the Costs

A. Labor Costs

  • General Contractors: They assist you in overseeing the entire project and typically charge 10-20% of the total project cost.
  • Specialty Contractors: Electricians, plumbers, and HVAC technicians are charged separately. You can cut costs by getting multiple quotes from contractors to compare.

B. Material Costs

  • Building Materials: Lumber, concrete, steel, etc. Prices can fluctuate, so stay updated.
  • Finishes and Fixtures: Flooring, countertops, cabinets, lighting, and plumbing fixtures. High-end materials will increase costs.

C. Design and Planning

  • Costs for architectural plans, engineering reports, and design consultations.

4. You must add Additional Expenses!

  • Site Preparation: Clearing land, grading, and foundation work.
  • Utilities: Connecting to water, sewer, electricity, and gas lines.
  • Landscaping: Outdoor features such as driveways, patios, and gardens.

5. Include a Contingency Budget

Whenever you start working on a residential or any other construction project. Make sure your client has a 10-15% extra budget for contingencies to cover unforeseen expenses.

 Practical Examples to Understand Estimate Construction Cost

We have discussed the rough average estimate construction costs for different tactical examples!

1. Cost to Add a Room to a House

Are you finding out how much it costs to add a room to a house? It can range from $90 and $250 per square foot depending on the size and location of the house. If we take the example of a 20×20 room then an average cost can be between $35,000 to $85,000.

2. Average Remodel Costs per Square Foot

The remodel cost of any type of residential building depends on the framework. The average remodel cost per square foot is around $150 to $300 for kitchen remodels, and $25 to $60 per square foot for bedrooms. If you are stuck in the estimating process then you can trust SMA Estimating LLC, they have the best cost estimators and guarantee accurate estimates.

3. Renovation Cost per Square Foot

The expenses required for renovating also depend on the type of area and what type of renovation you want. Generally, renovation costs per square foot range from $30 to $280.

4. Cost to Remodel a 3-Bedroom House:

Remodelling a 3-bedroom house can cost between $15,000 and $60,000, depending on the extent of the renovation and the quality of materials used.


In short, to estimate construction cost correctly you have to consider multiple factors. Your planning should be on point before starting a construction process. Pro Tip: Use advanced estimating software and tools to achieve accuracy in construction estimates. This approach not only helps in financial planning but also ensures a smoother construction process.

Also Read: Siraphat Faith Charnock: A Story of Perseverance, Faith, and Cultural Impact

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