Those curious about the work done on a house now can get a free report about a residential property’s major renovations and additions.

Realtor.com and home-improvement site Porch.com have teamed up to offer a new tool that will provide information about the remodeling history of houses listed on the Realtor.com site.

The Porch Home and Neighborhood Report, which is available on Realtor.com, typically includes home-improvement projects, costs, photos and the names of the contractors who worked on the house.

The information is pulled from city permit departments, materials suppliers, professional associations, real-estate agents and homeowners.

“For millions of people, the home is the biggest investment they will ever make,” says Matt Ehrlichman, CEO of Seattle-based Porch. “We believe everyone should have easy and transparent access to data and insights that matter most so they can make good, informed decisions.”

Go to the website and search for houses for sale. Scroll down on the listing to “Home Improvements and Renovations.” The report is sent via e-mail.

Of course, the service also provides Realtor.com and its many members with the e-mails of people potentially searching for houses in a specific area.

The Porch report includes a summary of home-improvement projects and the costs of the work in the neighborhood of the house for sale.

Statistics on the neighborhood’s other houses — including value, size, age, whether it is owner-occupied and the number of years people have lived in them — are also included.

Porch has more than 90 million home-improvement projects in its database.

How affordable?

New data from real-estate research firm and brokerage Zillow shows on average Valley homeowners are spending $741, or 16.6 percent of their monthly income, on mortgage payments.

About 55 percent of the houses on the market in metro Phoenix are affordable based on the area’s average household income.

Miami, Fla., is the toughest market for average homebuyers, with 62.4 percent of the houses listed for sale considered unaffordable, according to Zillow. Los Angeles is next at 57.2 percent, followed by San Diego with 55.3 percent.

About half of the houses for sale in Denver and Portland, Ore., are priced too high for the typical buyer, according to Zillow.

Reach the reporter at catherine.reagor@arizonarepublic.com or follow her on Twitter @catherinereagor.