Return on Investment

Will Your Home Addition Pay Off?

See the value an addition adds to your home, your net cost after resale gains, and your projected ROI. Free and instant.

Calculate my ROI
Under a minute No cost, no obligation National averages
Project type Step 1 of 4

What Are You Building?

Pick the project closest to your plans.

Estimates are planning baselines, not appraisals. Confirm with local agents and contractor bids.

How the ROI Calculator Works

Three inputs, one clear answer about whether your addition makes financial sense.

1. Describe the Project

Choose your addition type and finish level. Each type carries a typical resale-value range.

2. Add Your Numbers

Enter your current home value and expected cost. Not sure of the cost? Price it first with our calculators.

3. See Your ROI

Get value added, net cost, projected home value and a clear ROI verdict.

Average ROI by Project Type

Typical share of project cost recovered in added home value with mid-range finishes, based on national averages. Premium finishes recover roughly half as much.

Garage Conversion ~80% mid-range · ~40% premium
Kitchen Expansion ~60% mid-range · ~30% premium
Bathroom Addition ~53% mid-range · ~27% premium
Room Addition ~45% mid-range · ~23% premium
Sunroom ~45% mid-range · ~23% premium
Second-Story Addition ~40% mid-range · ~20% premium

What Affects Your Addition's ROI

Local Market Demand

Hot markets reward added square footage more. Comparable sales set the ceiling on what buyers will pay.

Project Type and Size

Kitchens and added bedrooms move value most. Oversizing beyond neighborhood norms returns less.

Finish Quality

Mid-range finishes usually return best. Over-improving for the block rarely pays back fully.

Neighborhood Ceiling

Your home's value is capped by the area. Additions that push far past comparable homes recoup less.

ROI Calculator FAQ

How is home addition ROI calculated?
ROI is the share of your project cost you recoup in added home value. We apply a national average recovery rate for your project type, adjust it for finish quality (mid-range recovers the most), then compare the value added against what you spend.
Which home additions have the best ROI?
Garage conversions tend to return the most, around 80 percent of cost, followed by kitchen expansions (about 60 percent) and bathroom additions (about 53 percent). Room additions and sunrooms recover around 45 percent and second stories around 40 percent.
Does an addition ever return more than it costs?
Rarely on resale value alone. Most additions recoup part of their cost in equity while delivering daily living value. ADUs that generate rental income are the main exception.
Is this estimate accurate for my area?
It is a planning baseline built on national averages. Local demand, comparable sales and contractor pricing vary, so confirm with a local agent and contractor bids.
Is the ROI calculator free?
Yes. It is completely free and gives you an instant analysis plus an emailed copy.

Run Your Numbers Now

See whether your addition pays off, then get matched with vetted local contractors for real quotes.

Calculate my ROI