The Killeen metro area has 3 new home communities with available homes with energy efficient features. The 42 new green houses for sale in Killeen cost as little as $229,995, proving that investing in your dream home while protecting the environment does not have to break the bank. New green homes in Killeen range between 1,394 to 2,880 square feet, and have between 3 to 5 bedrooms and 2 to 4 bathrooms.