Builders in the Golden State soon will be required to construct houses that produce as much energy as they use, thanks to the state’s rigorous Title 24 regulations that go into effect in 2020. Here are six stunning examples of California houses that have already achieved net zero with style and efficiency.

Efficient Home's Passive Details Add up to (Net) Zero

Net Zero in a Mountain Modern Package

Pulte Unveils Net-Zero Home

L.A. Mixed-Use Goes for Green

Long Beach Home Aims for Zero Energy

Stanford Home Employs Steel Framing