Brownstone Renovations

Tumen is known for its expertise in restoring and reimagining New York City’s historic brownstones. We combine architectural preservation with modern functionality—executing every detail with precision and respect for the building’s character.

Restoring New York’s Architectural Icons

Renovating a brownstone requires experience, craftsmanship, and deep familiarity with NYC’s architectural and permitting requirements. Tumen’s team manages every aspect—from structural reinforcements to refined finishes—ensuring timeless results that honor each property’s legacy.

Key Features & Benefits of Brownstone Renovations

We preserve history while delivering contemporary livability—bringing old-world craftsmanship into today’s standards.

Historic
Restoration Expertise

We restore original details like moldings, staircases, and facades with care and precision.

Full-Gut Transformations

From foundation to rooftop, we reimagine interiors for modern use without compromising character.

Permitting & Compliance

Our team handles all approvals, including landmark and DOB coordination, to keep projects on schedule.

Get Your Project Started

From concept to completion, Tumen delivers precision, transparency, and craftsmanship 
you can trust. Let’s bring your next project to life—built beautifully and built to last.

Trusted by hundreds of satisfied clients

“Aaron and team are great. They remodelled both of our bathrooms. Everyone who worked on our projects went above and beyond from communications to problem solving to staying within budget. The team of Mr Wu, Tommy, and Jason worked tirelessly. And they cleaned up after each work day! They were all very professional and courteous. I highly recommend Tumen and would definitely use them for our future projects.”

John B.

“Tumen Inc. were recommended to us by a friend after they remodeled his kitchen. We have two small bathrooms in our Bronx apartment that were both in rough shape. Tumen’s head-honcho Aaron came by our apartment with one of his contractors and they looked the situation over. Within a few days we were given a very reasonable estimate, and decided to engage them for the job. We have been very glad we did so ever since.”

Ben J.

“I cannot recommend Aaron Choi of Tumen Inc highly enough for the exceptional work he did in building my surgical office. Throughout the entirety of the job, his communication was outstanding. He was always available for my questions and concerns. He kept me informed at every step of the process, ensuring I felt involved and confident in the project. He even met me at the space after hours or on weekends when I had a concern that couldn’t wait.”

Ellie R.

“Thank you Aaron and team for such reliable and amazing work. They did a full gut and remodel of our basement in 2021. They stayed on budget and everything turned out great. We recently called for a bunch of smaller jobs we needed done inside the house. They came over Saturday looked at what we needed, gave the estimate on Sunday and he was able to squeeze us in the following week. The Job was wrapped up in less than 2 weeks.”

Lauren

Frequently Asked Questions About Brownstone Renovations

Still have questions?

Do you work in landmark districts?

Yes. We regularly manage projects requiring LPC approval and have deep experience working within those parameters.

Absolutely. Our approach blends structural modernization with detailed preservation, maintaining the building’s authenticity.

Yes, including masonry, cornices, ironwork, and other architectural elements essential to brownstone preservation.

Most full-gut renovations take between 5–9 months, depending on scope, approvals, and client specifications.

Still have questions?

Book Your Consultation

Every project begins with a conversation. Whether you’re a designer planning your next build or a business owner exploring options, our team is here to help bring your vision to life—seamlessly and with precision.