Primary Manhattan authority pillar / Townhouse

Townhouse Renovation Services in Manhattan, NY

Full townhouse gut renovations, brownstone renovations, structural reconfigurations, additions, rooftop work, luxury kitchens and bathrooms, and DOB permits and filings.

Company estimates

Townhouse renovation cost in Manhattan.

Typical estimates; a feasibility review gives an accurate budget.

01 / Partial

$100K–$250K+

Kitchen and bathroom renovations, interior upgrades, and selective improvements.

02 / Full gut

$250K–$750K+

Complete interior renovation including new layouts, MEP systems, and finish upgrades.

03 / Luxury

$750K–$1M+

Structural changes, custom millwork, additions, and premium finishes.

Services

A townhouse scope can reach from cellar to roof.

  • Full townhouse gut renovations
  • Brownstone renovations
  • Structural reconfigurations
  • Rear extensions and additions
  • Rooftop additions and roof deck construction
  • Luxury kitchen renovation
  • Luxury bathroom remodel
  • DOB permits and filings

Conditions before construction

Feasibility starts with what the building reveals.

Existing conditions, access, and structural discovery help shape a townhouse plan. These images document process context only; none is townhouse project proof.

ILLUSTRATIVE EXAMPLES

AI-generated illustration showing blueprint planning alongside a proposed interiorAI-generated illustration. Not a completed Corniel project.
AI-generated illustration. Not a completed Corniel project.

COMPLETED CORNIEL PROJECTS

Wall-demolition and structural-assessment detail during verified construction work
Verified Corniel Work — process documentationWall-demolition / structural-assessment detail.
Plaster and lath ceiling repair detail during a verified construction process
Verified Corniel Work — process documentationPlaster/lath ceiling repair detail.

Why townhouses are different

Vertical construction demands structural coordination.

Vertical construction logistics

Material deliveries, limited access, staging, and work-hour restrictions across floors.

Structural modifications

Open layouts, stair relocations, and extensions can require new steel, reinforced framing, and engineered solutions.

Multi-level building systems

Electrical, plumbing, and HVAC must be coordinated across floors.

Vertical coordination / explanatory view

A townhouse plan is read from the foundation through the roofline, with systems and structure checked at each level.

01 / Base

Access, structure, services, and protection begin the stack.

02 / Levels

Trades and deliveries coordinate across occupied floors.

03 / Roofline

Additions, weathering, and approvals close the vertical review.

Townhouse challenges

The site and the team shape the plan.

Tight streets, delivery restrictions, and limited site access affect the work. Review building rules and logistics early so the site plan reflects real access constraints.

Shared party walls require protection and neighbor coordination.

Townhouse work often involves additional DOB coordination, and some properties may be subject to additional review depending on the building and district. Review DOB approvals and permits early so the project path reflects the building and scope.

Coordinate with architects, engineers, and expeditors.

We help coordinate alteration agreement requirements and DOB-related filings through licensed professionals when required. Final approvals remain with the building, board, or applicable agency. Identify project risks before construction so scope, sequence, and access decisions are visible.

The process

From feasibility to final walkthrough.

01

Planning & Feasibility

Start with a feasibility review.

02

Design & Engineering

Coordinate the design and engineering work.

03

DOB Filings & Approvals

Address DOB permits, filings, and approvals.

04

Construction

Build through the structural, systems, and finish scope.

05

Final Walkthrough

Complete the final walkthrough.

Townhouse FAQ

Questions to answer before construction.

What does a townhouse renovation cost?

Townhouse renovation estimates start around $100K. A full gut often exceeds $750K. A luxury townhouse renovation is $750K–$1M+.

Will a townhouse renovation require permits?

Most townhouse renovations require DOB permits. Townhouse work often involves additional DOB coordination, and some properties may be subject to additional review depending on the building and district.

Can load-bearing walls be removed?

Load-bearing walls can be removed when approved by a structural engineer and properly reinforced.

How long does a full townhouse gut renovation take?

A full gut renovation takes several months or longer.

What is the first step?

The first step is a feasibility review.

Who can work on the project team?

Townhouse work can involve architects, engineers, designers, and expeditors.

Manhattan townhouse consultation

Start with a feasibility review.

Bring the townhouse, the scope, and the architects, engineers, designers, or expeditors already involved.