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Weddings

About

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
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Frequently asked questions

Do you have a site fee for wedding receptions at your venue?

Yes

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

$8,550

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

$7,550

Do you have a site fee for wedding ceremonies at your venue?

Yes

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

$500

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

$500

Which of the following are included in the starting site fee?

Bridal Suite
Chairs
China
Flatware
Glassware
Parking
Set Up
Tables

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

Cake Cutting
Server(s)

What is the starting price per person for bar service?

$12.50

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

Bartender(s)
Open Bar

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

25

How many event spaces or rooms does your venue offer?

3

Describe your venue:

Ballroom
Garden
Mansion

What kind of settings are available?

Indoor
Covered Outdoor
Uncovered Outdoor

Which of the following wedding events does your venue service?

Ceremony
Reception
Bridal Shower
Engagement Party
Elopements
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
Wifi

What catering services do you offer?

Buffet
Cocktail Reception
Dessert
Family Style
Hors d'oeuvres
Outside Cake
Plated
Server(s)
Stations

What bar services do you provide?

Bartender(s)
Champagne Toast
Open Bar
Outside Alcohol
Signature Drink

What event items are available?

Altar/Arch
Centerpieces
Chairs
Dance Floor
Decor
Furniture
Tables

What food and beverage items are available?

Barware
China
Flatware
Glassware
Linens

What transportation and access is available?

Parking
Wheelchair Access

What months are included in your peak season?

April
May
June
July
August
September
October
November
December

What months are included in your off-peak season?

January
February
March

Reviews of Twelve Oaks Mansion

This AI-generated summary gives you a snapshot of the overall ratings and feedback from the reviews this vendor has received.

Review summary

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Guests praise Twelve Oaks Mansion for its stunning, well‑maintained venue with beautiful indoor and outdoor spaces, hilltop sunset views, and good accessibility. Staff were responsive, flexible, and handled planning and day‑of coordination smoothly. Catering and bartending received high marks, with many calling the food exceptional. Overall, reviewers highly recommend it for weddings.

Review summary

Powered by AI
This AI-generated summary gives you a snapshot of the overall ratings and feedback from the reviews this vendor has received.

Guests praise Twelve Oaks Mansion for its stunning, well‑maintained venue with beautiful indoor and outdoor spaces, hilltop sunset views, and good accessibility. Staff were responsive, flexible, and handled planning and day‑of coordination smoothly. Catering and bartending received high marks, with many calling the food exceptional. Overall, reviewers highly recommend it for weddings.

A
Andrew Sent on 05/31/2026
5 out of 5 rating

The Wedding Venue (and People) You NEED!

Twelve Oaks and everyone who works there is absolutely amazing - there is no other word for it. The inside of the venue is absolutely beautiful in its own, there are numerous spaces outside with beautiful greenery, and there is an amazing view of the sunset from the back patio. The venue is also extremely accessible to guests of all ages and ability. We had the best experience working with everyone there to help make our wedding day as perfect as we wanted it to be. Leigh is extremely attentive and quick to respond to ANY inquiry and will give as much detail as possible to help make the wedding planning process easy and stress free (and it truly was because of her help). Not only was the planning process seamless, but the food was “the best food I’ve ever had at a wedding,” which came directly from our guests mouths. My husband and I, our guests, and our families have said and heard nothing but positive things about the venue, the staff, the food, the bartending, the views, the day of coordination from Julie, and anything else you can imagine. Our day was unforgettable and perfect from start to finish, and a HUGE part of that is because we made the best decision to celebrate our marriage at Twelve Oaks Mansion.
Sarah
Sarah Sent on 11/11/2025
5 out of 5 rating

Highly Recommend!!

Leigh and her team helped my husband and I every step of the way! Even on the day of they were able to quickly make adjustments so that everything ran smoothly. Their food is amazing and the venue is gorgeous. Being up on a hill in the middle of fall was gorgeous and we loved being able to do sunset photos in the evening. We are so grateful! Highly recommend!
Morgan
Morgan Sent on 08/14/2023
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
L
Linda Sent on 12/08/2022
5 out of 5 rating

Wedding and Bridal shower

We had my daughter’s wedding in 2021, and my future daughter-in-law’s bridal shower in 2022 at Twelve Oaks Mansion. Both events were perfect. Leigh goes above and beyond for every detail and to make everything run smoothly and on time. The venue is a beautiful space that can be decorated simply or extravagantly. We had the Common Plea cater the wedding, the food is as amazing, and Leigh catered the bridal shower and she did an amazing job! We received so many compliments on both events and would highly recommend Twelve Oaks Mansion for any event!
Leigh and her team treat you like family which makes the whole planning less stressful!
Sarah
Sarah Sent on 09/12/2021
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!
K
1Beb277E80Faad1528C7E262Ba7711Ca4A7Ce1Fb Sent on 10/14/2020
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)!
L
Lizz Sent on 10/09/2018
5 out of 5 rating
We are so happy that we chose Twelve Oaks Mansion for our wedding reception! The atmosphere is beautiful, and everyone raved about the food! Bethany was great to work with, and was very responsive to all of our questions. Thank you for a memorable night!
S
Samantha Sent on 12/11/2016
5 out of 5 rating
We had both our ceremony and reception at Twelve Oaks and it was amazing. The venue was exactly what we wanted. Bethany was wonderful to work with. She really let us make the place our own. She was also extremely flexible with the timeline of our day. We couldn't have asked for a better place or coordinator to work with. We highly recommend Twelve Oaks.
P
Michael Sent on 11/13/2016
5 out of 5 rating
We had our daughters wedding yesterday and we could not be more pleased with the venue. Bethany is the event coordinator there and quite honestly we could not have done it without her. She answered a hundred questions, multiple times for a few. She was calm and extremely helpful. The venue is beautiful and we had so many compliments. They are a very well oiled machine. The servers were great, very respectful. Bethany checked on us throughout the evening. The food was great. We could not be any more pleased with the experience.
A
Amy Sent on 08/22/2016
5 out of 5 rating
Bethany, the event coordinator, was so friendly and answered all my questions. The venue is absolutely beautiful. We received so many compliments from our guests about it, as well as how great the food was. There isn't one thing I could say negatively about our experience with the Twelve Oaks Mansion.
We're all about trust. Our community relies on honest reviews to help you make those big decisions with ease.

Awards

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Twelve Oaks Mansion frequently asked questions

Twelve Oaks Mansion includes the following items and services for wedding events in its starting site fee:
  • Bridal Suite
  • Chairs
  • China
  • Flatware
  • Glassware
  • Parking
  • Set Up
  • Tables
Twelve Oaks Mansion includes the following items and services in its wedding catering costs:
  • Cake Cutting
  • Server(s)
The bar service starting price at Twelve Oaks Mansion includes:
  • Bartender(s)
  • Open Bar
The space offered by Twelve Oaks Mansion for wedding events is known for:
  • Ballroom
  • Garden
  • Mansion
Twelve Oaks Mansion offers the following indoor/outdoor options for weddings:
  • Indoor
  • Covered Outdoor
  • Uncovered Outdoor
Twelve Oaks Mansion offers the following types of wedding events:
  • Ceremony
  • Reception
  • Bridal Shower
  • Engagement Party
  • Elopements
  • Rehearsal Dinner
Twelve Oaks Mansion offers the following services for wedding events:
  • Bar Services
  • Catering Services
  • Clean Up
  • Event Planner
  • Event Rentals
  • Get Ready Rooms
  • Liability Insurance
  • Outside Vendors
  • Pet Friendly
  • Wifi
Twelve Oaks Mansion offers the following furniture and decor items for weddings:
  • Altar/Arch
  • Centerpieces
  • Chairs
  • Dance Floor
  • Decor
  • Furniture
  • Tables
Twelve Oaks Mansion is recommended by 96% of couples who have used their services. Their overall rating is 4.8 out of 5 with the following breakdown: 4.8 in quality of service, 4.8 in average response time, 4.8 in professionalism, 4.7 in value and 4.6 in flexibility.
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