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Pricing Information

These prices are available for the months of April through December. These prices are available for the months of January through March.
$8,550 starting price
$500 starting price
$12.50 starting price
$7,550 starting price
$500 starting price
$12.50 starting price

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On WeddingWire since 2017

Twelve Oaks Mansion is a wedding venue in Mars, Pennsylvania, offering a charmingly timeless backdrop for any celebration. The property is nestled perfectly on top of a hill and surrounded by the skies above. With luxurious indoor and outdoor event spaces, delectable food, and gorgeous vistas, you will have everything you need to host an unforgettable wedding.

Facilities and Capacity

Inside Twelve Oaks Mansion, you will be greeted by a self-playing Baby Grand piano and an elegant marble floor that leads to a picturesque winding stairway. The library is the perfect room for cocktail hour or indoor ceremonies. There is a gazebo on the verdant grounds for those who want to exchange their vows in the fresh air; receptions can take place in The Grand Ballroom--the space features glowing chandeliers and seating for up to 250 guests, allowing you to invite all your nearest and dearest. The large windows flood the room with natural light and overlook the stunning countryside. There is also an open dance floor and an outdoor patio to let guests have a relaxing escape. In addition, the grounds on the property are picture-perfect and offer a private place for wedding photos. Sneak away for a minute to our romantic gazebos or the bench under the pergola. Then, sit on our front porch and enjoy your first moments as newlyweds.

Services Offered

At Twelve Oaks Mansion, you can start your day being pampered by your glam squad in one of the designated get-ready suites. The venue offers a day-of coordinator to ensure your special day runs smoothly. In addition, twelve Oaks will provide event rentals like tables, Chiavari chairs, china, and decorative items within your packages. Some of the venue's catering services include buffet, family-style, hors d'oeuvres, and plated. However, if you have a catering team in mind, this property is more than happy for outside vendors to work your event. In addition, there are plenty of spaces available for free parking.

  • Woman-owned

Frequently Asked Questions

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What is the starting site fee for wedding receptions during off-peak season?


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What is the starting site fee for wedding ceremonies during peak season?


What is the starting site fee for wedding ceremonies during off-peak season?


Which of the following are included in starting site fee?

Bridal Suite
Set Up

Which of the following are included in the cost of wedding catering?

Cake Cutting

What is the starting price per person for bar service?


Which of the following are included in the starting price for bar service?

Open Bar

What is the minimum number of guests required to book your venue?


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What kind of settings are available?

Covered Outdoor
Uncovered Outdoor

Which of the following wedding events does your venue service?

Bridal Shower
Engagement Party
Rehearsal Dinner

What event services do you offer?

Bar Services
Catering Services
Clean Up
Event Planner
Event Rentals
Get Ready Rooms
Liability Insurance
Outside Vendors
Pet Friendly

What catering services do you offer?

Cocktail Reception
Family Style
Hors d'oeuvres
Outside Cake

What bar services do you provide?

Champagne Toast
Open Bar
Outside Alcohol
Signature Drink

What event items are available?

Dance Floor

What food and beverage items are available?


What transportation and access is available?

Wheelchair Access

What months are included in your peak season?


What months are included in your off-peak season?

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4.8 out of 5 rating
29 Reviews
  • Quality of service
    4.9 out of 5 rating
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    4.8 out of 5 rating
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    4.8 out of 5 rating
  • Value
    4.8 out of 5 rating
  • Flexibility
    4.6 out of 5 rating
95% Recommended by couples

12 User photos

29 Reviews
Morgan C. Married on 08/12/2023
5 out of 5 rating

The best venue

Leigh and her team were the best to work with! They were so flexible and accommodating which is so helpful when searching for a venue to work with. Not to mention, the venue is beautiful, customizable and well maintained. It was such a pleasure to be able to make my wedding day how I wanted with so much help and support from their team. I highly recommend twelve oaks and Leigh and her team
Sarah C. Married on 05/29/2021
5 out of 5 rating

The Venue of Your Dreams

Oh my goodness- where do I even begin?! Twelve Oaks Mansion was everything we dreamed of for our special day, AND MORE. Due to family circumstances, a military deployment, and covid- my husband and I, decided to go ahead and get married just 7 months after getting engaged. Knowing that we were well inside of the typical time it takes to book a great venue, I was nervous to say the least. Growing up on "The Wedding Planner," I always pictured a classic, romantic wedding with lots of natural light and small personalized details that would take my guests breath away as they walked in. So we picked a date in late Spring- and started searching.
We quickly came across Twelve Oaks Mansion and reached out for more information. (Enter in, our very own "JLo": Leigh). Leigh sent over some information about the venue, along with pictures and their availability and we were pleasantly surprised to see they still had one day available in May.
When my mom and I toured the venue for the first time on a rainy day in late October, we both were holding back tears. It was everything I had ever pictured, and more. The venue itself is set on a hill overlooking the valley around Cranberry Twp, with the most gorgeous sunset views you have ever seen. These views are even more prominent thanks to the 360 degree windows around the banquet hall. Inside, everything is pristine. The mansion has been recently renovated and Leigh and her team keep everything looking spotless. As your guests enter, they are met with the sounds of a self-playing grand piano, set underneath an elegant staircase.
The views and venue itself would have been enough to make us sign right there, but on top of that- there's Leigh. She is extremely kind and knowledgable in her field. She was with us every step of the way: from helping us order the perfect linens, to coordinating with all of our vendors. Leigh takes care of her couples as if they were her own family. She made sure that everything was exactly as we pictured it on our big day.
We are still receiving compliments from friends and family about our wedding, and we can not recommend Twelve Oaks Mansion enough!
1Beb277E80Faad1528C7E262Ba7711Ca4A7Ce1Fb Married on 10/02/2020
5 out of 5 rating

AMAZING! 10 stars out of 5

Our venue (Noah’s) filed for bankruptcy. We contacted our caterer (John Marshall catering) immediately and asked them who they had catering contracts with. They sprung into action and got us in touch with Leigh at Twelve Oaks Mansion. We walked into the mansion and FELL IN LOVE with it. We spoke with Leigh about our dream wedding and fell in love with Leigh! Covid hit and we began to stress. Leigh was so calming. We ultimately chose to reduce our wedding capacity from 250 to 50. (Wedding party was 24 adults, 3 flower girls, and the guests were spouses and kids of those in the wedding party). I was worried the room would look huge with such a limited amount of people. Leigh set it up absolutely beautifully and it did NOT look empty at all! We had such an amazing ceremony in the ceremony room, and an absolute fantastic time in the ballroom for our reception. Everyone of our guests loved the venue and told us we had an absolutely beautiful wedding, and the food (John Marshall catering) was the best food they ever had at a wedding. Our photographer never did a shoot there, and she was so impressed with the ceremony room, ballroom, outdoor patios with beautiful views, and two gazebos, which gave her many photo opportunities. I can’t say enough good things about our experience with Twelve Oaks Mansion, and with Leigh. We consider her our guardian angel for keeping us calm and sane during such unheard of circumstances. We booked our 250 guest reception for next year, and are so much at ease knowing Leigh will be there to pull it all together for us (again)!
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