The Mansion on O Street - Project Planet

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The Mansion strives to have a long-lasting, positive influence on the world around us, the community we live in, the people we employ, and those who visit. To that end we invite employees and guests to come together for the common goal of protecting and preserving our planet.

The Mansion extends its sustainability practices through the entire fabric of our offerings including fine dining. You can be confident your meal has been created with the utmost attention to the environment. For 40+ years we have engaged in sustainable practices that conserve natural resources, reduce our impact on the environment — and promote wellness.

We focus on green dining
- we Use organic fresh food
- we limit disposable products
- we don't use styrofoam or plastic
- we use compostable everything
- we source sustainable food
- we create organic, environment friendly cleaners
- steel & ceramic reusable straws
We embrace sustainable living
- we recycle
- we utilize ENERGY STAR® appliances
- we encourage telecommuting
- we deployed a recyling trash compactor
- we encourage guests to turn out their lights
- we have chemical free fountains & pool
- we are paperless wherever possible; optimizing printed matter for low ink usage; recycling ink/toner cartridges
- we comply with the most advanced environmental laws
- we decrease energy use
- we encourage reuse programs
- We use LED lighting
- we do not supply hair dryers (major energy guzzlers!)
- using toilet paper made from recycled paper, unbleached and septic-safe
- unplugging "energy vampires" when not in use (learn more)

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This is a very unique place. It is an active hotel and a museum rolled into one. There are dozens of rooms with little hidden nooks, rooms and literal secret passages with lots of pulp culture and American history spread all over the place. Everything from The Beatles to Rosa Parks to comic book heroes. It's just wild!There's no doubt that it can be overwhelming at times and some of the passageways can be narrow so you may have to let go of some personal space issues if you have them. But there is just so much cool stuff it really "must visit" spot in DC.Keep in mind that it is an active hotel so rooms may or may not be available to explore but this place really is fun.One gripe I have is that because of where it's at around 19th Street parking can be a bit of a pain in the butt so plan ahead for that. The staff was wonderful, friendly and very informative. This place is a lot of fun.

— Ron