1. Agent Pronto
  2. Connecticut
  3. Danbury
  4. Svetlana Mastrogiannis

Svetlana Mastrogiannis

William Raveis Danbury

Looking to sell your property, buy a new home, or just need some expert real estate advice?

About
As a top agent in the area with over 24 years of elite real estate experience, Svetlana Mastrogiannis and The MCM Team at William Raveis are the premier choice for Greater Danbury. Ranked #4 in the nation for closed units and in the top 1% of Realtors in North America, Svetlana provides a level of market authority and local insight that is unmatched in the region. Having lived in this area for over 25 years, she knows the local market like the back of her hand. Svetlana specializes in luxury waterfront properties on Candlewood Lake and Lake Lillinonah. From navigating dock rights and shoreline regulations to marketing the unique lifestyle these lakes offer, she ensures her clients have a distinct competitive advantage. A top producer for over 20 years and a 14-year Five Star Professional Award winner, she provides elite expertise and personal care to every client as their trusted advisor for life.
Highlights *
52
Recent sales
$185K-$2.15M
Price range
$555K
Median price
25
Years experience

Recent Listings & Sales

Ratings & Reviews
5.0 (5)

Allan Ackermann
Bethel, CT - Oct 11, 2025

I recently had the pleasure of working with a dynamic Team of Brokers, Kelley Colina and partner Svetlana Mastrogiannis, out of the Danbury William Raveis Real Estate office.
From our very first meeting at my property and all the through the sales process the communication flow was clear, concise, timely, informative, and most importantly positive. They were my representatives as well as assisting to guide me through the entire process.
Overall: An amazingly positive experience!

Source: Google

Sandra Rankin
Danbury, CT - Jul 24, 2025

Svetlana was an excellent partner during the process of selling our home. She was knowledgeable and specific in the process of deciding how to stage our home for pictures and showing, even going so far as to suggest a particular new chandelier to set off our entryway, which items to move around, and how to ensure the focus was on the house and not the contents of the house. She explained why she asked us to make certain changes and how it would affect Buyer perceptions.

She advised us on the timing of putting our house on the market, and discussed a pricing strategy, demonstrating a detailed knowledge of the local market. Once we put the house on the market, she communicated constantly about the status of showings, open houses, and the reactions of potential buyers. We mostly communicated via text message, but she was quickly available for phone calls as needed.

Source: Google

Carol W
Ridgefield, CT - Apr 20, 2025

Just had to make a very emotional sale of our home and Svetlana made it bearable with her professionalism and kindness. Her expert advise and price pointing had the home sold for a great price and in a very short amount of time. I'm so thankful for her and I think anyone having her representing them in the sale of their home will be extremely happy. She is truly amazing. Thank you Svetlana for everything.

Source: Other

Lynn C
Newtown, CT - Mar 15, 2025

Svetlana and Kelly helped me with the purchase of my home. The transaction went smoothly and quickly. These two negotiated on my behalf. I would definitely recommend.

Source: Other

Ceyda M
Danbury, CT - Jul 26, 2024

Svetlana was amazing throughout the process. She was available, responsive and very supportive. She kept us calm and stress free all the way through. We are over the moon happy with the service, expertise and support provided. There is no one better to work with. Look no further!! Work with Svetlana and Kelly to find your next home.

Source: Other

Professional Info

Brokerage

William Raveis Danbury
48 Mill Plain Rd
Danbury, CT 06811

Licensed

Licensed REALTOR®
CT RES 0762863

Awards

  • Ranked #4 in the Nation for closed units.
  • Ranked #5 Top Producing Team in CT.
  • Ranked in the Top 1% of Realtors in North America.
  • Top Producing / Top Listing / Top Selling Agent 2003-2025.
  • 14-Year Five Star Professional Award Winner 2011-2025.

Specialties

  • First-time buyers
  • Luxury properties
  • Relocation

Designations

  • ABR®

Languages

  • English
  • Russian

Hobbies

  • Animals
  • Travel

Education

Master’s Degree
1995 - 2000

Top Cities *

Danbury

  • 22 sales past 3 years
  • 76 days on market
  • $530K median price

Brookfield

  • 10 sales past 3 years
  • 52 days on market
  • $790K median price

Newtown

  • 7 sales past 3 years
  • 118 days on market
  • $995K median price

* Sales data is calculated based on transaction information available to Agent Pronto at the time of publishing and may not accurately reflect all transactions for a given agent.