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About Us

The Viva Green Homes Advantage.

Global Platform for Eco Home Listings and Professionals


Why does Viva Green Homes exist?

It's simple. We are solving one the largest and fastest growing issues in real estate
-- incorporating eco and energy efficient homes into the marketplace

VivaGreenHomes.com is an innovative national real estate home listings website specializing in showcasing eco & energy efficient features and 3rd party certifications. The proprietary VivaGreen Score is an online virtual scoring certification based on the quantity & quality of eco features in a home, 1-5 stars. 
  • » We are working to accurately record and market eco features of homes.
  • » Finding the true market value of eco homes and helping industry leaders make better decisions about their products and services.
  • » Creating a global platform where buyers can access more information about potential homes, i.e. energy efficiency, features, and certifications.
  • » Allowing sellers to market their premium listings more accurately for a better return on their investment. 
  • » Providing a national real estate website that fills the gap of local MLS's.
  • » Combating "greenwash" marketing through our VivaGreen score.


4 Key Areas to Grow The Eco Homes Market

1. The largest, most comprehensive & accurate national database of eco homes listings.

  • Thousands of listings across the country and now international listings too. 
  • Hundreds of eco features that sellers and listing agents can select from to accurately market the home.
  • Buyers have easy access to more detailed information about homes than anywhere else, a home's energy efficiency, its systems and features, and certifications as well as potential cost savings using renewable energy like solar or geothermal.
2.  Combating “greenwashing.”

  • Viva Green Homes has a proprietary 1-5 star VivaGreen score for homes based on the quality and quantity of eco features.
  • Working to verify eco claims, such as certifications, eco features and energy scores of homes as soon as they come onto the market. 
  • Showcase third party certifications like LEED, Energy Star, Passive House... 

3. Providing a national platform for professionals and customers (coming soon) to find a full range of eco professionals, real estate agents and services that cater to their eco home buying or sales needs. 
  • Appraisers, energy auditors, solar installers, home builders, certifiers, product distributors and more.
  •  VGH creates dynamic and data-drive profiles for each professional to help match consumers better with professionals. 

4. Lastly, we’re working to find the true value of eco homes.

  • How are eco homes and their features performing in the marketplace? We are helping to uncover this. 

How We Work


VivaGreenHomes.com is a media website that hosts eco home listings for free. 

Owners or agents have complete control over their listings, to edit, enhance or adjust its activity on the site at all times through their account.
Please contact us if you have any questions or need any assistance. We are more than happy to help.


2016 Cleantech Open National
Winner of the Business Award for the Business Model
with the Best Chance of Immediate Investment and Commercialization.  

Winner of Cleantech Open's Southeast Region



  The Eco Homes Market

Supply:  Eco homes is expected to double by 2021 to 2M or 32% of homes for sale (NAR, NAHB, Census, LEED, NGBS, DOE...)
Demand:  ~10M millennials will be home searching by 2018.  (Trulia).  And according to a 
2014 report from the National Association of Realtors, sustainable features such as heating costs, energy efficient lighting, eco landscaping, and solar panels were "very important" factors for 9 to 36% of home buyers. 
With most homebuyers starting their searches on a national real estate website, home buyers need a place to begin their home search that includes all the features of a home, including energy efficiency, cost savings, and certifications. Sellers need a place to accurately market their listings. 

Consumers seeking eco home service providers, professionals, and retailers will now have global platform to connect.

Our Team

VGH is headquartered in Arlington, VA, with a team of a founder, experienced engineer, developer and listing specialist located across North America. They are knowledgeable and passionate about making sure that the real estate market includes these premium listings for sellers to market their homes and helping to educate and provide a platform for homebuyers to find their next home or eco professional.
  • Founder and CEO

    American University, Washington DC
    BA, cum laude, in International Studies with a focus on sustainable development

    LEED Green Associate

    Professional Experience:
    Licensed real estate agent in Virginia since 2005 (Keller Williams and ZipRealty)
    EPA Outstanding Scholar
  • Scott Miles
    Lead Engineer

    Georgia Institute of Technology
    Bachelor of Science, Computer Science. High honors. 

    Certified Information Systems Security Professional (CISSP)
    Professional Experience:
    20+ years IT experience 
    Clear Skies Security
    Internet Security Systems 
  • Alex Gonzalez

    Chihuahua Institute of Technology
    Bachelor of Information Tchonlogies, Honorific mention.

    Professional Experience: 10+ years IT experience
    Mobile solutions
    Web development

    With Viva Green Homes since 2014
  • Jan Northenscold
    Listing Specialist

    Former real estate agent in Minnesota with 6 years experience.

    Passion for her work with dog rescue Playa Animal Rescue

    With Viva Green Homes since 2014


Viva Green Homes is also mentored and advised by leading entrepreneurs in tech start-ups as well as experienced professionals in real estate and sustainability. 

  • Paul Goggin

    Serial Entrepreneur and Founder, CTO, Technologist, Scientist, serves on a variety of boards


  • Alicia Brown

    Experienced Real estate agent since 2002, Real estate Broker and the Northern Virginia Association of Realtors Committee
Our Partnerships and Affiliations

Mentor Capital Network's Bethesda Green Cohort
CleanTech Open Southeast
1776 in Crystal City, Arlington, VA.
Rate It Green
Built Green
Passive House Institute US (PHIUS)
Savenia Labs

 Learn more>>
As an innovative and expanding company, we are happy to work with investors, sponsors and supporters of the site to continue to grow and make www.VivaGreenHomes.com the largest international database of green homes for sale.
Contact info@vivagreenhomes.com for more information.

Our Press

We've been in the Washington Post, Chicago Tribune, Huffington Post and other nationally syndicated columns as well as ARLNow.com, Elemental.green, Active Rain and more.

The Washington Post 

This article was syndicated in The Chicago Tribune and numerous columns across the country.

The energy-efficient New Norris House in Norris, Tenn., was selected by the American Institute of Architects as one of the nation's top 10 examples of sustainable architecture and green design in 2013. (J. Miles Cary/AP)
Buyers should be wary of houses that are marketed as energy-efficient
By Kenneth R. Harney July 6
The practice is called “greenwashing,” and home shoppers need to be on guard: It means a house is being marketed as environmentally friendly and energy-saving when it doesn’t deserve that description. 

Greenwashing is a growing issue in real estate as multiple studies demonstrate that consumers are attracted to — and will often pay premiums for — homes that are highly efficient in saving on utility bills.

Just about everybody likes the concept of green, and builders and real estate agents increasingly use the term as a sales come-on. But experts say that, too often, what’s marketed as green isn’t what it purports to be when you take a close look...

Kari Klaus, chief executive and founder of Viva Green Homes of Arlington, Va., a new national listing portal exclusively for “eco-friendly” homes, says “greenwashing is a growing problem — clearly there’s a desire to jump on the train and use buzzwords” such as “green,” “sustainable” and “high-efficiency,” too often with little to back up the claims.

Her website (at vivagreenhomes.com) carries free listings for homes certified by HERS, LEED, Energy Star, Built Green, NetZero and other programs as well as for noncertified homes that have some green features such as solar panels, geothermal systems, energy-efficient windows and doors, water conservation devices, etc.

When noncertified homes are listed on the site, the seller or agent must check off boxes indicating which green features the property offers. Viva Green Homes then produces a “Green Score” ranging from one to five stars to give potential purchasers a rough idea of how green the house is.

Source: Washington Post. Read the 
full article

The Huffington Post

Highlights Viva Green Homes for its eco certified home searches


Environmentally Safe Actions That Will Increase Your Home’s Value
Recently, the Institute for Market Transformation released a study showing a positive correlation between home energy efficiency and curb appeal. On average, high-performance homes are valued at a premium of 3.46 percent more than non-high performance homes. Some were even valued as high as 6% to 7.7% more. That equated to between $10,343 to $53,000 that buyers were willing to pay for a high-performance home over a standard performance home.
What does this mean for you, the enterprising homeowner who wants to reduce their footprint? It means that renovations designed to improve the efficiency of your home can also boost its resale value. Here’re some actions to get started.
    1. Get an energy audit
    2. Spend an afternoon at the hardware store
    3. Install energy efficient windows
    4. Power your home with renewable energy
    5. Upgrade your appliances 

There’s even a search engine to find certified homes for sale called Viva Green Homes. That will be useful if you’d like to do a bit of competitive analysis to determine what ratings are typical in your area.

Source: Huffington Post. Read the full article


Arlington Economic Development

Arlington Premiere
December 7, 2016  Arlington, Virginia. 
Viva Green Homes is showcased and receives a key to the city. 


Green Connections Radio

Green Home Buying – w Kari Klaus, Viva Green Homes0

Nov 4, 2016

Whether you’re looking to rent or buy a home, apartment, condo, or townhouse, historically you’ve had to ask a lot of questions to find out about the home’s energy efficiency and carbon footprint. Meet Kari Klaus of Viva Green Homes, a new home listing service that is changing that.

Listen to Green Connections host Joan Michelson’s engaging conversation with Kari about how to buy or rent a “green” home no matter where you’re located, what to look for, and pitfalls.

You’ll learn about:

“Green-washing” – or exaggerated claims in listings

How their rating system works

Tips for buying or renting a green home/apartment

And more!

Tell us what you heard on Twitter @joanmichelson, on our Facebook page – and like the page!

Thanks for listening! Please subscribe to Green Connections Radio on iTunes, iHeartRadio, TuneIn, or Stitcher, and subscribe to our newsletter for more up-to-date information on innovation, energy, green and careers at





Startup Monday header

Editor’s Note: Sponsored by Monday Properties and written by ARLnow.com, Startup Monday is a weekly column that profiles Arlington-based startups and their founders, plus other local technology happenings. The Ground Floor, Monday’s office space for young companies in Rosslyn, is now open. The Metro-accessible space features a 5,000-square-foot common area that includes a kitchen, lounge area, collaborative meeting spaces, and a stage for formal presentations.

Startup Monday: Viva Green Helps Home Buyers Find Eco-Friendly Houses

by Michelle Rosenfeld — August 22, 2016 at 1:45

When Arlington real estate agent Kari Klaus decided to renovate her home to make it more energy efficient, she stumbled upon a problem.

Klaus, whose background is in sustainable development, realized that the traditional real estate property listing system doesn’t showcase or market environmentally friendly features for homes, making her house appear similar to others that aren’t energy efficient.
From working in the real estate business, she knew that home buyers care about how eco-friendly their future home will be.

“Wouldn’t you want to know if the home you are thinking of buying has superior systems, a tight building envelope (sealed to prevent air leaks) with solar panels and will save you potentially hundreds of dollars each and every month?” Klaus said.

But there was no understandable and reliable way to rank, search and view energy efficient homes, Klaus said.

That’s where VivaGreenHomes.com comes in.
VivaGreenHomes.com“VivaGreenHomes.com shows you that these options exist and explains their importance to you as a home buyer,” Klaus said. “If a home’s environmental or health value has not won you over, then the potential to save you a lot of money will.”

She said her company changes the game because other real estate listing services aggregate home listings without any verification procedures. VivaGreenHomes.com uses claim verification methods, including a “Home Energy Rating System” score, an industry standard for eco-friendly homes.

A beta version of the site launched in October 2014. Feedback received from industry leaders helped to shape the website before its full launch in May. Just two months after launching the full version, the website has nearly 4,500 active listings, Klaus said.

In the next six months, VivaGreenHomes.com plans to add more user tools, consumer information and other features. Amid those changes, Klaus hopes the number of listings on the site will reach 20,000 in the next year.

Arlington provides all the resources the company needs to continue to grow, she said.
“It’s been incredible to be around so many professionals that work in the sustainability and eco-homes industry,” Klaus said. “It has been a great resource for the company’s growth, including the recruitment of some of our newest team members who live in the D.C. area.”

Article source




Green home building is growing at an incredibly fast rate. According to the National Association of Home Builders’ report, Green and Healthier Homes: Engaging Consumers of All Ages in Sustainable Living: nearly one-third of home builders report that they are currently doing more than 60% of their projects green, and over half expect to be doing that level of green work by 2020.

The U.S. Green Building Council claims that “more than half of consumers rank green and energy-efficiency as top requirements for their next homes.” Sound like you? You’re not alone in your search to buy an environmentally-friendly home. Luckily, with the growing demand for these types of homes, there are now websites dedicated to helping you in your search for finding your dream green home. Read on to learn about 5 eco-friendly home search sites and a featured home from each of them... 

This is one of the largest and most comprehensive sites specifically for eco and energy-efficient home listings, averaging approximately 4,000 active listings nationwide. Have some very specific green home specifications in mind? Viva Green Homes’ search engine offers checkboxes for prized home features such as LEED-certified, EnergyStar, solar, net-zero, and more. In addition, the homes are rated with a custom Viva Green Score (1-5) to help illustrate how green and efficient the homes are. 

On Viva Green Homes, you’ll find eco-friendly homes with a variety of Viva Green scores in a variety of price ranges. 

Asking price: Negotiated 
Bedrooms: 3 
Bathrooms: 4 
Year built: 2010 with updates in 2016 
Eco Features: net-zero ready, solar, passive heating & cooling, rainwater collection system, recycled metal roof, over 25% certified sustainable or recycled interior finishes with little to no off-gassing, and more. 
This straw bale home, designed by Hubbell and Hubbell, was built in 2010 and features an impressively long list of eco-friendly features without sparing luxuries like a pool and spa. The property boasts a large, verdant yard near hiking trails with stunning panoramic views while still being within 2 miles of public transportation. According to Viva Green Homes, this home is a favorite on green home tours!

Read the full article 


Active Rain
Search, list, and learn about green real estate with Viva Green Homes
Education & Training with Montague Brands - sales, marketing, sustainability
August 03, 2016 05:52 AM
Looking for a green home, or looking to sell one? Then you want to check out Viva Green Homes, developed by  Kari Klaus. It’s a wonderful collection of home listings all over the country (not in every state just yet, but it's just a matter of time) that come in all shades of green from NAHB to LEED, to Passive House and everything in between. Just try it. Type a city into the search bar on the homepage of Viva Green Homes. San Diego. LA. Chicago. Greenville, SC. Go ahead. Try it.
Viva Green Homes

You will immediately see the value of VGH. As their tagline says, ‘Buy, Sell & Market Eco Homes’ is the focus of Viva’s beautifully designed and easy to navigate website. The real estate listings have banners that clearly identify their green qualifications which include LEED for homes, Energy Star, HERS, Net Zero, Passive House, and their very own badge ‘Viva Green Score.’ There’s a nice  short video on their about us page that gives you a quick overview as well.

The site is an excellent resource about green homes and real estate, not just listings (although listings are a strong suit). It tells us what green features buyers care about most:

1. A healthy place to live — Homes are healthier places to live for their occupants when they are dry, ventilated, and the contaminants within the building envelope are limited.

2. Lower operating costs — Energy- and water-efficient homes cost less to operate. Most consumers are willing to pay more if their investment will pay back over time.

3. Contributes to a sustainable lifestyle — Buyers are seeking homes and communities that improve their quality of life and fit their values that we can tread more lightly on the Earth. 

Viva Green Homes is full of smart tips, like ‘sell the benefits, not the features.’ People want green because those features translate into benefits like improved comfort, quiet, better indoor air quality, and an overall more durable structure that requires less maintenance. They also conserve precious resources like water and energy.

There are sections for Buyers, Sellers and Professionals, all with a variety of resources. Agents and consumers can of course list their properties (basic listings are free), you can promote your listings for a small fee, and you can easily modify or upgrade a listing. There are fields for all kinds of features (more than you would imagine!). As you can see below the search tool (and listing tool) incorporates pretty much any green feature you can think of. And you can quickly identify a property by certification or building style including LEED, Net Zero, Energy Star, HERS, GreenStar, Passive House (PHIUS), EarthCraft and more. 

So, if you're a builder, developer, realtor, consumer, or green professional, you will find something useful at Viva Green Homes. 

Check it out, and please let me know what is your favorite green and sustainable real estate site? I love to hear your comments.

Until next time, 
growth for the greater good! -Tim Montague

 Article Source: Active Rain


Mentor Capital Network
An interview with Viva Green Homes' Founder, Kari Klaus

The Mentor Capital Network interviewed Kari Klaus, CEO and Founder of Viva Green Homes, a participant in our 2016 Sustainable Business Plan Collaboration...

Read more at: