A full service general contractor, SPACiO designs with superior creativity and builds in meticulous fashion.

The result is, without fail, spaces that become benchmarks of inspiration.

And our professional expertise is transcended only by our level of professionalism.

We ceaselessly get the job done – with integrity, collaboration, and respect.

Executive Team

Spacio Design Logo

Whether taking on a multi-million dollar comprehensive design/build project, or simply enlisted to consult for a client, our approach is the same. We listen, we collaborate, and expertly coordinate. And we do so on time and on budget.

We encourage you to talk to any client with whom SPACiO has partnered – a roster that includes a range of world-class brands. You’ll find that they echo these very sentiments. We eliminate frustration, and execute with nothing short of excellence.

For projects where only flawlessness is acceptable, SPACiO has been the most trusted resource a client can have. In addition to our design build expertise and creativity, we are logistics gurus. We proficiently analyze project parameters during project development, delivering efficiencies that enhance speed and reduce cost.

Alexander Wertheim

As President, Alexander founded SPACiO Design Build and has been involved with real estate and condo owner relationships for the majority of his professional life.

A General Contractor by trade, Alexander started as an Asset Manager for a major NY Real Estate Developer overseeing 10,000 apartment units in Connecticut and upon returning to South Florida started a Commercial and Residential General Contractor firm as a precursor to SPACiO Design Build.

Alexander plays a critical role in ensuring that our offerings exceed customers’ expectations through his leadership of the Sales, Operations, and Business Development efforts.

Brian Nisula

Brian Nisula_Spacio Design BuildBrian brings extensive experience in construction and operations as an engineer, licensed Florida contractor, and developer to SPACiO Design Build. Anchored by a degree in Civil Engineering from Cornell University, throughout his career, Brian has overseen high-end home building and remodeling, as well as commercial real estate development.

Within SPACiO Design Build, Brian’s primary focus is the continued development and refinement of proprietary software and workflow processes that ensure the on-time and on-budget completion of projects and overall customer satisfaction.

Sheila Sperling


Sheila Sperling, Director of Sales and Design, is an invaluable member of the SPACiO team.  Her management and sales skills, complemented by her design insights, have helped grow the company significantly.

Her initial role was the position of Property Manager for Key International Developers – a prestigious company whose roster includes such well-known Miami properties as the Ivy, Mint, Eden House, South Beach Marriott Hotel, and Eden Roc Hotel. At the Ivy, Sheila established an on-site upgrade service to make the design and construction process turnkey and stress-free for all international and domestic buyers.

Sheila is also a licensed real estate agent, and due to her tremendous marketing and project management capabilities, she has successfully spearheaded design and sales for over eight condominium projects in the last nine years.

“In a word, “Reliable!” Any opportunity that I can have them come in and help us, I jump right at it. I’m very happy with the service from them.”

Principal, DevStar Group

For our daunting 224 room and corridor renovation project here at Marriott South Beach, we knew efficiency was critical, and adhering to budget was a mandate. Under severely tight time restrictions, SPACiO not only rose to the challenge, they surpassed every expectation. They complete this immense task ahead of schedule and under budget – and their quality of work was indeed superior.

Vice President, Key International

The SPACiO team delivered as advertised – their adept handing of all pre-construction needs was impressive. They professionally coordinated the array of entities involved in this major project in a manner that impacted the hotel operations as minimally as possible. This invaluable service, along with their stellar work, simply reinforced the reputation they’ve built in this industry.

General Manager, Marriott South Beach