Josephine and John's touching testimonial thank you card.  Watch this quick video.


Read more about what our clients are saying...


My latest remodel was with Mike Costanza, of Design REALTY OF Long iSLAND,  the greatest real estate broker on Long Island. We can show you how to improve your  house  to sell for more money in less time with our services!           


  • "Thank you guys for finding me my dream house! You guys went above and beyond in every way possible and I am so thankful and appreciative for it all!"

    Sabrina D.
  • Mike and Ele are the best! They are both very knowledgeable and work tirelessly to find the perfect fit. Honest, professional at all times!!!

    Joanna & Dominic
  • "Mike & Ele are very straight-forward, honest and easy to work with."

    Joe C.
  • "I bought my first house from Mike. He also sold the same house when we moved. He is on top of everything and buying and selling went smoothly."

    Anthony R.
  • "I've known Mike Costanza for over 15 years, he did a fantastic job listing and selling my home in Holbrook. From start to finish he guided me through all of the details including how to stage my home to give it the very best appearance. This allowed me to maximize the selling price. My home sold quickly without any complications. Mike was in contact with me throughout the process. I recommend him highly."

    Carol T.
  • We wanted to thank you for the wonderful service you provided during the process of selling our home in Farmingville. We had interviewed three other “major” realtor companies and you were the only realtor that was realistic with what our house was worth and you did not have one negative thing to say about another real estate agent or agency, as did two of the other realtors we interviewed. You, personally, sold our house in two weeks of listing it (in a slower market that the average house was listed for three months). You took care of all details, returned every phone call and/or email within a timely manner. Thanks again for making the experience so stress free and finding buyers that were so great to work with. Also, it’s a good thing we didn’t use the other big national agencies because there were two homes on our block that were for sale when we listed ours, and to this date, six months later, are still on the market. As ususal, the big guy is is still overpricing, just t

    Dawn and Bill Daly
  • My wife and I want to thank you from the bottom of our heart. We were amazed at how quickly and painless it was to sell our home. A little over six months ago we had put our house in Holbrook up for sale using a well known realtor. After six months of open houses and averaging 2 showings per week, we knew we had to make a change. I remember after our first meeting with you, we were so impressed with the knowledge and experience you bring to the table, and one week later at our first open house, we had received not one, but two offers on our home. You literally sold our house in less than one week. You did within a week, what a major national chain with many agents could not do in six months, and for that we are forever grateful. I will recommend you with confidence to all of our friends and family.

    Mr. & Mrs. John Pierro
  • We listed our house for sale with a big franchise realtor for 3 months at a 5% commission, over $15,000 dollars! They promised me a lot but did very little. Once we signed the contract we had very little contact with the agent. We couldn’t believe our house didn’t sell. We heard about Realty $3000 and Mike from a friend of ours who raved about how fast he sold her house and about paying just $3000. We called Mike, he explained how simple the program is, he really did everything he said he would. He showed the home that 1st day! He advertised, he returned my calls and kept us up to date on everything. He sold our house for almost full price within 2 weeks and we saved $12,000! Now we are really glad the first real estate company failed! I don’t know why anybody would not use Realty $3000. Mike took charge from day 1, advertising, buyers, engineers, attorneys, he did it all.Talk about getting your money’s worth!

    Wayne and Stacy Hoffman
  • Looking for a home for about a year really stressed us out, believing in God was our only hope that he will find us that perfect house. Well, just to let you know what a great part he used you to find us that house, We just want to say thank you in the most blessing way to be returned to you and your family that through this blessing in our lives he gives you even more homes to make families as happy as we are. Thank you for having the faith in finding us our dream home. Best to you and your family. oh, one more thing Anthony and I are having a house warming on September 29 @ 3pm please come with your family to join us in this celebration.

    Nancy DeMonte
  • Michael Costanza of Realty 3000 is one of the finest business men I have ever known. When it was time to put my home on the market, I was glad to see his ad. At last there was a Real Estate Agency giving us a break on their commission. His ad is altogether true! He received exactly $3,000.00 at the day of closing, no more and no less. There were no strings attached to this excellent service! He was always available and he guided me through the entire sale from beginning to end, even expediting certain refunds that I was supposed to get after closing. I must truthfully say that Michael Costanza gave me some of the best service I have ever known in the business world. I recommend him to everyone!

    Dorothy Stasinopoulos
  • I want to sincerely thank you for your professional and personal assistance in selling our house at 38 Ort Ct. in Sayville, NY. You responded to every request in a prompt, courteous and professional way. You even anticipated many of our needs before we thought to ask. You went far beyond the call of duty making arrangements for prospective buyers to walk through our home. Because we had so much confidence in you as our Real Estate agent, we recommended you to the family seeking to purchase our home. You gained their trust as well and quickly sold their home, a little above the amount they needed so they were able to complete the purchase of our home. Your willingness to drive to attorneys offices and hand deliver contracts facilitated the signing of all contracts in record breaking time, so the family buying our home could register their children in Sayville schools before they started in September. Everything you did behind the scenes was tangible evidence that taking care of your

    John W. Smith
  • As first time buyers on Long Island, it was an absolute pleasure working with Mike and Eleanor. They had the utmost patience and professionalism along our journey of finding our forever home. You can really tell from their years of experience that they know the market extremely well. My fiancé and I are so grateful to have had the experience of working with great realtors that we can trust and who have now become like family to us. We highly recommend design realty!

    Jessica and Matt
  • Selling a house is never fun. Try closing the deal in the middle of a global pandemic. Working with Mike and Eleanor was a pleasure, even during this unprecedented time. We all worked as a team and they went out of their way to make sure we didn't lose the sale. We would highly recommend Design Realty of Long Island. They work hard for you!

    Mike and Eleanor!!