Harmony Design Group

Harmony Design Group has built an incredible reputation in New Jersey for high-end landscape architecture and outdoor living design. I’ve followed their work and have been consistently impressed by the level of detail, professionalism, and thoughtful design they bring to each project. Their backyard transformations, retaining walls, patios, and covered outdoor entertainment spaces reflect a true design-build approach. It’s clear they consider grading, drainage, plantings, lighting, and structural integrity from the very beginning rather than treating each element separately. If you’re a homeowner in Westfield, Summit, Short Hills or surrounding Union County towns looking for a landscape architecture firm that values craftsmanship and long-term planning, Harmony Design Group stands out in the New Jersey outdoor living space. Their portfolio speaks for itself, and their process-driven approach sets them apart from many landscape contractors in NJ. Highly recommend taking a look at their work if you’re considering a custom patio, retaining wall, or full outdoor living project.

Harmony Design Group is a class act business with super talented people who really care! We hired Harmony for our backyard where we wanted to build a tranquil and natural space where we could chill with family and friends and enjoy our surroundings. Well, Harmony MORE THAN DELIVERED! In addition to doing a top notch job with beautiful plantings, a lovely patio with kitchen and a pergola - the thing that stood out above all else, was their customer focus and service. I can't say enough good things about the teams we worked with! Jessica (our project manager) was THE nicest and most professional person I have ever dealt with. She handled everything with an ease and calmness that was so refreshing - something that is so hard to find today. Her landscaping teams really cared about each and every planting they installed, and their work ethic was unmatched. We also hired Harmony's lawn maintain team (headed up by Kerri) and once again, we were impressed with the attentiveness and professionalism of her teams. These folks are terrific!

Harmony Design Group recently completed our complete backyard renovation and we could not be happier! Our backyard has truly reached its potential. Marc and his team were always easily accessible and responsive. We were so happy with their initial plan all the way to completions we cannot wait to enjoy our new outdoor space for years to come!

We recently worked with Marc and Harmony to transform our backyard from a muddy swatch of dirt and grass to a hidden oasis that included blue stone patios, retaining walls and an outdoor kitchen. From the very beginning, Marc was attentive and thoughtful in his approach and delivered several potential options for the space. We ultimately went with the vision we loved most and Marc coordinated the bid process for the the job to make sure we found who we were looking for. Every detail was looked after by Harmony from finish selections, coordinating deliveries, various project check-in meetings and ultimately to the final completion. We couldn’t be happier with the end product and are certain you will be too!

We hired Harmony Design Group to do a large project for our new home. This included landscaping the front and back of the property and also lighting. From our first meeting with Marc Nissam, we knew he was the right guy for the job. Marc was patient, diligent and professional throughout the scope of the job. He finished ahead of schedule and we are so pleased with the end result. His creativity and knowledge for landscape design really did put the finishing touches on our new home. We would highly recommend Marc Nissam and HDG!!

I have been a homeowner in Westfield for 25 years. I can unequivocally state that Marc (HDG) is the most knowledgeable and accomplished landscape designer whom I have ever worked with. He has amazing vision to look at a property and either create or transform it into the most visually appealing result. I thought that I had a nice looking manicured pool/patio/yard until Marc renewed it into a more elegant, appealing property. What's more, he had initially inspected the property at the end of the winter at a complete disadvantage regarding light/growth etc, and yet was able to 100% perfectly recommend the ideal plantings for the property predicting to the month when we would have the color blooms and growth which he had advised. Gentle lighting was added around the whole property and we are beyond satisfied. The HDG affiliated crews were polite, diligent and professional. You must consult Marc for his expert advice.

Hi. Marc came to our home. Spent a hour with us. He promised an estimate for doing a landscape design. It has been four weeks and he has not sent anything or called. I would not recommend him.

We hired Marc with a tight deadline to redo our yard for our daughter's Batmitzvah. He succeeded and did a beautiful job. We were very pleased.

We have had the pleasure of working with Marc and his team for the past few years on projects together. Marc is alway professional and respectful of our clients dreams. His creativity and talent during the design process and equally as talented leading his team during the construction process, always fine the right solution to the project. As an architect, its important to have a landscape team that can execute the landing of our projects beautifuly. We recommend Marc Niesham and his team highly. He is a pleasure to work with.

My wife and I recently moved into a penthouse with two large fenced in but bare roof top garden areas, and a large balcony overlooking the city. We contracted with the Harmony Design Group to open up these areas. With his first drawing, Marc capitalized on the perfect design for the gardens and balcony. Working with his team they installed panels to cover the fences, planters, plants, sprinkling systems, benches, flooring, lights, lanterns, a statue and a fountain. The results are spectacular, and visitors view the gardens and balcony as the highlight of our home. We are indebted to Marc and his team for bringing their expertise into our lives.

I was glad that I chose this Chose Marc Nassim for the Land Scraping Architect. He was very responsive and did a FANTASTIC!!! Job. I highly reccomend Architectural services before you bid out your Job as every Hard Scape Contractor will give you quote according to their design and product. His response was prompt when we had a problem at site and he came over right away so that the project won't get delayed.

I have used Marc for landscape designs since 2013 when my good friend Matt Rusk of Rusk Enterprises referred him to me. Marc's first design for me was an exceptional landscape design to the entrance of my clients home in Denville NJ. His plan encompassed a full season of color, from constants such as boxwood's, to the vivid bloom of iris' to the perennial grasses which created a soft texture and turned with the fall months. Several months later I met Marc out on a large project shooting elevations for a grading plan. Marc is one of the few who landscape architects who is not afraid to get dirty, he truly has field experience. He's not just behind a desk pumping out a million designs a season with little thought or care. His ability to capture a person's dream and add his own creativity produces a final design that is second to none. I will be using Marc's firm for years!