For Brad and Travis Greene, if they build it, chances are they’ll put Christmas lights on it.

The brothers, who live next door to each other at 78 and 80 Cardinal Drive in Whispering Pines, are once again putting their holiday decorating skills to work for a good cause. And this time, instead of just one home, the brothers are decorating two.

“This year, the biggest thing was adding a new house,” Brad Greene says.

For the past three years, the brothers, who both work for a local home builder, have decorated Travis Greene’s home at 78 Cardinal Drive. This year, they will also decorate Brad’s home, which was recently completed and is next door to his brother’s.

The brothers will once again take donations for the KT Foundation, a nonprofit organization dedicated to helping those with Klippel-Trenaunay syndrome, a congenital vascular disorder of unknown cause.

The Greenes are cousins of Mark Metcalf, the founder of the organization. Metcalf and his wife, Del, started KT Foundation in 2002 after their son, Kyle, was diagnosed with the disease.

Those wishing to donate can do so at drop boxes in front of the Greenes’ homes, or they can go online to www.KTFoundation.org.

Last year, the Greenes collected about $3,000 for the foundation. This year they’re aiming higher.

“We want to double that this year,” Travis Greene said. “What we are hoping this year is that some companies will step up and donate money to the cause.”

The brothers are using more than 50,000 lights, 10,000 feet of drop or extension cords, homemade decorations, an inflatable Santa and Grinch, a computer and an FM modulator to turn their homes on Cardinal Drive into a holiday happening.

It took nearly three days to do a majority of the decorating, the brothers said. The light show will run from 6 p.m. to 11 p.m. every day through Dec. 31.

The lights pulse to the beat of the music for more than an hour. Visitors can tune their radios to 107.9 on the FM dial and listen, or even sing along with the holiday tunes as they watch the light show.

This year, the show features more than 26 songs — most about three minutes in length. Travis Greene says that last year people made several visits to see the entire show.

“People figured out last year how to time it so they saw something different each time,” Travis says. “People will come at 6 o’clock one night, and then come another night at 7 o’clock, and they know if they stay for three or four songs each time, they will see something different.”

Last year, the brothers decorated only Travis’ home, because Brad and his wife lived in a rental home up the street. This year, Brad and his wife needed a bigger home because his wife was expecting the couple’s first child, a baby girl, who was born in mid-November.

Brad looked at several lots, but settled on the one next to his brother.

“We looked all over Whispering Pines,” Brad says. “The lot beside Travis was available. We talked about it and knew if we were able to get that lot, we could make the show even bigger.”

Brad Greene says things worked out “perfectly” and added that the idea of expanding the light show was “the final straw that made us choose this lot over the others.”

Travis adds, “Always thought we’d have a show at his house and one at my house, but this works out good because we don’t have to get all new lights and sound equipment.”

Brad eagerly admits that the light show affected the landscaping in his yard.

“We had to spend a lot more on the landscaping to get large, adult trees,” he says. “So we didn’t have all the small plants over here and all the mature ones in his yard.”

This is the third year for the show for the brothers, who work for Legacy Home Builders. The show has grown by leaps and bounds each year.

In 2009, the brothers made a spur-of-the-moment decision and put the show together beginning in mid-November. It featured fewer lights, 12 songs and a few handmade decorations.

Last year, the show had 22 songs and plenty of holiday scenes, including an inflatable Grinch, Peanuts characters, Frosty the Snowman, Santa and plenty of reindeer.

This year, the show will also feature a manger scene and more traditional Christmas music.

And because two houses are involved, the brothers will be able to do a lot of transition with the songs and lights.

“We will be able to play house versus house, or we will be able to have them complement each other,” Brad says. “We also have more room for static scenes, too.”

The brothers hope the larger homes, along with signs on Niagara-Carthage and Airport roads as well as Cardinal Drive, will help people find the houses more easily and increase traffic.

“We’re hoping the traffic pattern picks up quite a bit,” Travis says. “There were many nights last year that I pulled onto the street and had to wait to get into my driveway because the cars were just backed up on both sides of the street.”

Contact Tom Embrey at tembrey@thepilot.com.