This is a house design competition for a family retreat house near a river all  called Howard Fall in Pennsylvania, 2025 
I wanted to create a house that is energy efficient, cost-effective to build, long lasting, and resembles pebble with its round corners. It has an underground geothermal air conditioning system in the open ground, a solar generating panels system on the roof. It provides open views onto the waterfall, and the meadow besides the river providing ample space for outdoor activities. 
https://architecturecompetitions.com/howardretreat/