Full-Service High-End Townhouse Renovations

Transforming NYC Townhouses with Thoughtful Design & Expert Craftsmanship

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Please tell us about your project

We specialize in high-end residential renovations across NYC — from historic brownstones to modern lofts, townhouses, and apartments. As a full-service design-build firm, Mammoth handles every detail from concept to completion, delivering complete design and build solutions all under one roof.

Wood stools at granite counter in kitchen

77 Park Ave

119 St. Marks Place

Black and white kitchen with checkered floor

1145 Park Ave

Wood cabinets, slate walls, and oven in modern kitchen

115 East 9th St.

White modern home office with two desk chairs and wall shelves

67 East 11th St.

Two wood stools at wood TV stand and tv in modern living room

Window bench at window with bush outside

343 W.12th St

Blue walled living room with green modern couch

88 Prospect Park SW

49 Columbia Place

475 W 22nd St.

We’re a full-service design-build studio,
and take full ownership over our projects.
Our services include:

Full-Service, Architectural & Interior Design

Our studio offers end-to-end, bespoke design services tailored to each client’s tastes, needs, and budget. We work with our clients to establish their layout, overall design and specify each of the architectural elements of their space.

Decor & Accessories

We bring our clients’ vision to life by designing each square inch of their home

Regulatory

End to end management of Building Management Company and Board Approval.

We work with, and coordinate an Architect of Record for approval from: Department of Buildings (DOB), Landmarks Commission (LPC), Loft Board and other relevant governing agencies.

Construction

We are a licensed and insured home improvement contractor in New York City working to bring clarity and professionalism into our projects from day one. Our construction team manages your project budget and timeline through the entire process so that you know what to expect.

Our team is experienced in managing the complexities of construction in New York City, and we are committed to delivering exceptional results on every project we undertake.