Building a Room Addition

Things to Know Before Building a Room Addition

Things to know before building a room addition or a home remodel are important to a successful project. Professionally designed building plans should also be a part of building a room addition project. The most difficult and costly home improvement project is to create a full room addition that modifies the real floor plan by digging and laying foundations, then framing and finishing a new living area.

You could find yourself in a situation where you have more questions than solutions. How will an addition affect resale value? Will your original floor plan stay the same? Do you need to hire a contractor?

Here are some things you can expect:

Re-consider: Should you do it? House modifications, whether they’re minor bump-outs during or big projects involving additions, are investments. If you don’t intend on selling the house, you have more incentive to make it your own. The pleasure you get from a new room or a second story can last for years.

Resale Value: Will the addition add value to your home? Even if you don’t expect to sell for a long time, sooner or later you will sell and you may also refinance or borrow money using your house as collateral. So keep future resale value in mind at all times. More than likely, you’re not going to make a profit on a large investment. Use Open Door’s data on thousands of recently sold homes to see which home improvement, renovation, and remodeling projects can have the biggest increase on your home value. Click here to try the home improvement value calculator.

Budget: Every family’s wish list is unique, therefore the only way to obtain a realistic estimate for your project is to consult with local contractors. Here are some average project costs for common addition jobs:

  • Bathroom Addition: $40,710
  • Upscale Bathroom Addition: $78,409
  • Family Room Addition: $85,740
  • Garage Addition: $60,608
  • Upscale Garage Addition: $90,053
  • Ensuite Addition: $108,090
  • Sunroom Addition: $75,224
  • Two Story Addition (ensuite over family room): $165,243

And there are long-term costs to adding on as well. Increasing the size of your home means increasing your energy bills, especially for heating and cooling. (Cost vs. value 2021: National)

General Contractor: Finding a great contractor is key to completing your project timely and within budget.

Most cities and counties require a permitting process for plumbing, electricity, foundation work, and more. Unless you’re an expert at the building process and using licensed trades, the permitting process can be daunting and best left to a general contractor.

J&M Construction & Remodelling is an experienced general contractor with over 30 years of building beautiful homes, remodeling projects, and room additions. Enjoy extra space right where you need it with visibility to timelines and project costs. We’ll pull permits and make sure your new project meets city and county codes and standards.

J&M Construction is a Qualified Partner

Working with a highly qualified partner helps assure that your home remodeling project goes smoothly. No matter what you have in mind, choosing the right company to handle your project is key to a successful build. Schedule your project with J&M Construction & Remodeling. Our staff works hard to understand your needs and get things right the first time. Call us at (281) 359-3550 to get started.

Work Cited

  1. Cost vs. value 2021: National. Remodeling. (n.d.). Retrieved March 1, 2022, from
  2. See how much a project increases your home value. Opendoor. (2020, November 20). Retrieved March 1, 2022, from
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