Siobhan McKillop

Siobhan McKillop


Siobhan began working as a full-time licensed REALTOR® in 2011 in the Austin metro area. She represents buyers, sellers, landlords and tenants. Siobhan loves working in real estate and considers it a privilege to help individuals and families either sell their home or find their dream home in the right location, with the right commute and at the right price! Siobhan has worked with people relocating to the area from all over the United States and overseas. She listens to and guides her clients through situations that they are often unfamiliar with.

After moving to Austin in 1991, Siobhan spent 20 years in sales and marketing with a major media company. Her years of experience helping Austin area home builders with their advertising strategies received special recognition from the Austin Home Building Industry. Helping people buy and sell real estate was a natural next step for her.

Her goal is to make the buying or selling of your home a smooth and enjoyable experience by providing you with the professional service of a realtor who listens to you and cares about your needs. She uses her knowledge and skills to provide a comprehensive property analysis and expert advice that will help you as a buyer or seller make the best choices. She believes in treating every transaction as if it were her own.

Siobhan’s hard work and tenacity have helped grow her business to an annual multi-million dollar sales volume. With her attention to detail, communication skills, and focus on her clients’ needs, you can rest assured that you will be in good hands for buying, selling, and leasing your home and investment properties.

In her free time, Siobhan enjoys listening to music, swimming, gardening, and volunteering with her Church.


  • Platinum Top 500 REALTORS® 2018, 2019

September 8 2019

Our Realtor, Siobhan McKillop, was fantastic. We traveled several times from our home in California to Texas, where Siobhan met us and showed us several houses until we found the perfect one for us. Then she negotiated a great deal for us with the builder, and we are now happy owners of a beautiful new home. We couldn't have done this without Siobhan, and highly recommend her if you are planning on relocating.

Warren Huber

September 3 2019

Siobhan McKillop was very helpful in finding our new home and was very conscientious in following up with us throughout the building process, as well as meeting with us during closing. We certainly appreciate her insights and professionalism.

Samuel H. Chidester

February 1 2019

We worked with Siobhan remotely since we were moving in from California. She did a wonderful job; she was on top of everything and walked us through every step of the process. Thanks to her and the rest of the team, we were able to close on our house in California and in Austin on the same day! I would recommend Siobhan with Realty Austin to anyone looking to buy a house, especially if they are coming from out of state!

Tyler W.

February 1 2019

Siobhan has been a pleasure to work with. My husband and I are new to Austin and Siobhan expertly advised us on the areas to look in, school districts, and neighborhoods. She was readily available and a great partner to work with during our searching. Given we were in CA while looking for our home, Siobhan took the extra step of viewing homes on our behalf and providing detailed house summaries, comps, and valuable data points to support our search. We are so happy with the home we purchased and appreciate all the time and effort Siobhan took to help us!

Maegan Wenzel

October 1 2018

We were very pleased with Siobhan. She was very patient and understanding with us. She took the time to find out what we were really looking for and discussed the areas and the pros and cons with us. She was very patient with our two very rambunctious little boys! At no time did we feel pressured to make an offer on a house that was not the right fit. Siobhan wanted to be sure that we found the right home for us. She was very aware and respectful of our needs and our budget making the process much less stressful. She guided us through the Texas home buying process which is much different than any other state in which we have previously owned a home. We knew every deadline and what the expectations of us were. If we had questions, Siobhan was very responsive and obtained an answer for us quickly. Working with Siobhan was a great experience for our family, and we would highly recommend her to others looking to purchase a home in Austin!

Sara Bordelon

August 1 2018

Siobhan McKillop did an excellent job, again, in my purchasing a home this month in Austin. I am so fortunate that I worked with her in buying this home with Siobhan’s professional assistance. I also purchased a lovely home four years ago with her assistance. That’s why I wanted to contact Siobhan again in my second home purchase. Without her assistance, I could not have achieved my goal of purchasing a dream home(s) with my satisfaction.

Because of Siobhan’s deep experience, quick action, answering my questions, ample network with people in the lending market, title company industry, and sincere customer friendly attitude, I am lucky that I was able to close this new home within as short as 30 days since she showed me the house for the first time a month ago. I highly recommend Siobhan as a real estate professional if you are looking to purchase a home. She helped me become happier and feel greater again. She is not only real estate professional, but also “make-people-happier-and-greater professional. I will definitely work with Siobhan again in future when I pursue next bigger dream. Siobhan is THE BEST!!!

Hiroshi Urabe

July 1 2018

I found Realty Austin in my many online searches for a home and property in Texas. We just moved from out of state and needed lots of help to find what we needed. We connected with Siobhan McKillop and had a wonderful experience. She is so motivated and really digs in and does the research for you. All the while keeping you informed and thinking of the little things you might forget or not know about. We would highly recommend Siobhan as a Realtor. Siobhan has a great personality, very professional and wonderful to work with.

Linda I.

November 1 2017

Siobhan was amazing. She was incredibly patient; showing us more homes than any of us wanted to see. Siobhan developed a sense of what we were looking for after initial visits were better able to direct us. She was absolutely incredible with following up on information I needed towards closing. When I started the process, I thought it would likely be next year before I either found an existing property or decided to build. It is a surprise that I'm sitting on my new property!

Sherry Richard

November 1 2017

I was looking to purchase my first home earlier this year. I reached out to Realty Austin and was connected with Siobhan McKillop. Siobhan helped educate me on the home buying process and made me feel comfortable every step of the way. She didn't try to pressure me into anything I wasn't ready for. Siobhan let me know that this purchase was something I needed to be sure about since I would be the one signing that mortgage check every month. I ended up purchasing a new construction home, so there was a four-month wait from signing the contract and closing on the property. Siobhan stayed in touch and continued to provide advice along the way. She was so right though, I love my new home and can't wait to write that first check! If you are looking for a Realtor, reach out to Siobhan McKillop, you won't regret it!

Rebecca McAnally

November 1 2017

Siobhan McKillop did an amazing job helping us find a house that we love. She was very professional and responsive to texts and email. Siobhan met with us twice to look at houses, was very helpful with the process. She gave us lots of advice that definitely sped the process up and got us the house we wanted. I even had two sets of friends that were looking for homes, and she was more than willing to help them out. They found houses pretty quickly too. I highly recommend her.

Brittney Burnham

I met with Siobhan McKillop in late November and by the third week of December, I had found the house for me. The search experience was very enjoyable and comfortable. I also experienced no surprises concerning the closing of the home and by the first week of January, I was a proud owner of my first home. Siobhan’s customer service skills are first rate. She is organized, informative, and timely. I look forward to working with her again on buying an investment home in the future.

Keola Cabudol

Having Siobhan McKillop as my realtor was a great experience! I was worried about the process of buying a house on my own in Austin’s competitive housing market, but Siobhan was with me every step of the way and helped me find the perfect home! From notifying me about available properties that matched my criteria and showing me houses, to being at my closing, and everything in between, Siobhan made my home-buying process a breeze!    

Angela Bice

If you are searching for your Sweet Dream Home, our entire family would surely recommend Ms. Siobhan McKillop, who made our dream come true in a very short period. Within a few meetings, all at our convenience, irrespective of weekends or harsh weather, she made great attempts to hunt for our house with my very strict specific requirements. Her advice and input were invaluable to us. We feel very lucky to have her as our realtor and in all our future endeavors, we are very sure to have her as our family realtor. I, Nisha Dipal Bhatt, on behalf of my entire family, thank you, dear Siobhan McKillop, God bless.

Nisha and Dipal Bhatt

Thanks again to Siobhan for all her help; she is a blessing and I recommend her to anyone who needs a realtor!!    


Thanks to Siobhan for doing a great job in helping us sell our condo!  

Matthias and Estella

We are a few days away from our one-year anniversary in our new house! Thanks to Siobhan for all she did to help make it happen.    

Jeff and Meredith

We had a wonderful experience working with Siobhan McKillop to purchase a home in which our daughter and son-in-law could live. We flew to Texas from Ohio and had 2-1/2 days to make a purchase while in town and, despite traveling to at least a dozen homes, ended up having fun during what could have been a very stressful time. Siobhan was available whenever we needed her and even quickly came up with a new list of houses to look at after we decided to increase our price range. The house we purchased was vacant for about half a month after closing, and Siobhan checked up on the house a few times and reported her findings until our daughter and son-in-law took possession. She went above and beyond anything we could have expected of her, and we would not hesitate to recommend her as a realtor. She is a true professional and delivered after closing attention that is unusual to find in today’s business world.      

Richard and Janet Hennig 

It was a real pleasure to work with Siobhan and I will recommend her.  


Yesterday was the two-year anniversary of us finding our house with Siobhan and we drank mimosas out of the glasses she gave us! Hope you are doing well, Siobhan!  


I want to thank Siobhan for all her help and support to make this move possible. I know she extended herself to make this happen so quickly, and I am incredibly grateful. When I worked with her two years ago, I also had a wonderful experience moving in and want to thank her for being extremely professional, very communicative, reliable and all around a delight to work with.   


Siobhan has been wonderful. Thank you for all your help in finding our house, Siobhan!


Displaying 1 out of 1 results. Listings updated 10 minutes ago.
Price, High to Low
3105 Stardust Dr - MLS# 2513019
  • $2,450
  • Pending
  • MLS® #: 2513019 
  • Allandale Park
  • 3105 Stardust Dr
  • Austin, TX 78757
  •   3 BD 2 BA 1567 Sq Ft 0.22 AC
  • Rental
Office: Realty Austin
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Displaying 24 out of 61 results. Listings updated 10 minutes ago.
Price, High to Low
106 Orion St - MLS# 2670472
  • $500,000
  • Sold
  • MLS® #: 2670472 
  • Lakeway
  • 106 Orion St
  • Lakeway, TX 78734
  •   4 BD 3 BA 3061 Sq Ft 0.37 AC
  • Residential
  • Seller Represented
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1011 Brodie St #23 - MLS# 1850159
  • $435,000
  • Sold
  • MLS® #: 1850159 
  • Bouldin Creek Cottages
  • 1011 Brodie St #23
  • Austin, TX 78704
  •   3 BD 2 BA 1362 Sq Ft 0.1 AC
  • Residential
  • Seller Represented
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917 Electra - MLS# 4203001
  • $390,000
  • Sold
  • MLS® #: 4203001 
  • Lakeway
  • 917 Electra
  • Lakeway, TX 78734
  •   4 BD 4 BA 3572 Sq Ft 0.38 AC
  • Residential
  • Seller Represented
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