over 100 rooms & more than 70 secret doors to explore
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* Dues are not tax deductible.
This business was created because we felt the ideals of our generation needed
to be refocused and uplifted, and out of an
unusual space, with changing music and art, good things would happen. In the space below , please tell
us a little about yourself. We are interested in who you are as individuals, how you would like to help other people, what your
vision of the world is and why you would like to become a member.
In over 25 years, no two events have ever been the same at The Mansion. We pride ourselves on creating unparalleled and special celebrations. For corporate events, retreats, family reunions, birthdays, engagement parties, rehearsal dinners, wedding ceremonies, wedding receptions, renewal of vows and wakes ... we ask that you send us additional heart felt information before we begin planning your event.
Please tell us about yourselves: how you met, what attracted you to each other, where you grew up, where you like to travel, what your hobbies are, where you work ... anything that will give us an insight into who you are as a couple, family or about the person you are hosting an event for. This is very important in helping us plan a unique and personalized event.
deposit for hotel rooms is not included in event deposit calculator. please note you will be charged a one night non-refundable deposit for each hotel room.
how many rooms will you need?
check in date
length of stay
what kind of event are you planning?
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select any combination of tables, sofas, etc.
Would you also like:
how many guests will attend a dinner?
what kind of flowers can we help you with?
No charge for our standard tables, chairs & cloths. Additional charges for special linens, chairs, and chair covers
Beverages can be served on a consumption basis. Premium wine/champagne avail. upon request.
non-refundable, non-transferable deposit is needed to book date and time.
Membership dues are non-refundable.
i would like to purchase a gift certificate
- Select a Gift Certificate -
Straight Dollar Amount
Typical turn around is 48 hours. If you need it sooner, click here and let us know.
I would like to make a donation to The O Street Museum Foundation
I would like to apply a gift certificate to this order
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I have read and accept the following: terms of payment
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I authorize The Mansion on O Street, 2020 O Street, N.W., Washington, D.C.
to run my credit card, in the amount entered on this electronic form,
and request my bank release these funds to the merchant processing bank.
Accounts due on delivery. A finance charge of 1.5% per month (18% annual percentage rate) will be charged on overdue accounts.
should your balance become overdue, you shall be liable for all costs, including, reasonable attorney's fees, which may be incurred by
H.H. Leonards Associates, Inc., trading as The Mansion on O Street,
in collecting the outstanding balance on your account.
Membership dues & functions are not tax deductible.
This deposit is non-refundable and non-transferable.
Liability: If you send in this electronic form, you agree that H.H. Leonards, 2020 O Street Corporation, O Street Museum Foundation, The Mansion on O Street and H.H. Leonards Associates (hereinafter all “HHL”) and its agents shall not be liable for any personal injury or property damage incurred by you and/or your guests (hereinafter “you”) at The Mansion or while coming or going from The Mansion. You shall hold HHL harmless for any and all claims arising by reason of the use of The Mansion, including but not limited to alcohol consumption.
On rare occasions, data may be inaccurately displayed on our site due to either system or human error. While we make every attempt to avoid these errors, they do sometimes occur. We reserve the right to correct any and all errors when they do occur and we do not honor inaccurate or erroneous prices. Our prices are also subject to change without notice.
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