There’s no single number that answers this honestly — a $15,000 bathroom refresh and a $150,000 gut renovation of the same square footage are both “apartment renovations.” What matters is scope: are you updating finishes, or are you moving walls, plumbing, and electrical? This guide breaks costs down by room and by renovation type, so you can figure out which category your project actually falls into before you start collecting quotes.
Cost by Room (2026 Ranges)
| Room | Cosmetic Update | Mid-Range Remodel | Full Renovation |
|---|---|---|---|
| Bathroom | $8,000–$15,000 | $20,000–$40,000 | $45,000–$70,000+ |
| Kitchen | $15,000–$25,000 | $40,000–$65,000 | $70,000–$120,000+ |
| Basement | $10,000–$20,000 | $30,000–$55,000 | $60,000–$90,000+ |
| Bedroom | $5,000–$10,000 | $12,000–$25,000 | $25,000–$45,000 |
| Full apartment (all rooms) | — | $80–$150/sq ft | $180–$350+/sq ft |
Ranges vary by borough, building type, and finish level; a co-op with tight elevator access or strict work-hour rules can add cost even before materials are chosen. Treat these as planning ranges, not quotes — always confirm against a written, on-site estimate.
What Actually Drives the Price
| Factor | Why It Matters |
|---|---|
| Moving plumbing lines | Relocating a sink, tub, or kitchen plumbing away from existing risers is one of the biggest single cost drivers |
| Structural changes | Removing or altering a wall may require an engineer’s sign-off and steel reinforcement, not just labor |
| Building access | Walk-ups, narrow hallways, and strict elevator booking windows in co-ops/condos slow crews down and raise labor cost |
| Permit requirements | Any scope requiring a DOB filing adds architect, expediter, and filing fees on top of construction |
| Finish level | Stock cabinetry vs. custom millwork, or standard tile vs. imported stone, can double a room’s budget on its own |
| Building age | Pre-war buildings often reveal outdated wiring, plaster walls, or plumbing that needs replacement once opened up — a common source of budget overruns |
Cosmetic vs. Mid-Range vs. Full Renovation: What’s the Difference
- Cosmetic update: paint, flooring, fixtures, cabinet fronts — no plumbing or electrical relocation, usually no permit required.
- Mid-range remodel: new cabinetry, some plumbing/electrical work within the existing layout, likely requires a permit.
- Full renovation / gut renovation: demolition to the studs, new layout, all-new systems (electrical, plumbing, HVAC) — always requires a permit and typically an architect.
Cost by Building Type
The building your apartment sits in changes the price even before you touch design choices — access, approval requirements, and existing conditions all vary by building type.
| Building Type | Typical Cost Impact | Why |
|---|---|---|
| Doorman condo/co-op with service elevator | Baseline | Easiest material delivery and disposal access |
| Walk-up (no elevator) | +5–15% on labor | Materials and debris moved by hand or stairwell |
| Co-op requiring board approval | +Time, sometimes +cost | Alteration agreement requirements, insurance, limited work-hour windows |
| Pre-war building | +10–20% (often unplanned) | Plaster walls, outdated systems frequently need full replacement once opened |
| Landmarked brownstone (exterior work) | +Significant, project-specific | LPC review adds time and material restrictions on top of standard costs |
Where Homeowners Typically Overspend or Underbudget
| Area | Common Mistake |
|---|---|
| Appliances | Underbudgeting — high-end ranges, built-in refrigeration, and ventilation systems can eat 30%+ of a kitchen budget alone |
| Plumbing relocation | Underestimating — moving a bathroom or kitchen even a few feet can add thousands in rough-in labor |
| Custom millwork | Overspending without comparing — custom built-ins are often priced far above semi-custom alternatives that look nearly identical |
| Lighting | Underbudgeting — recessed lighting, dimmers, and under-cabinet lighting add up fast across a full apartment |
| Design/architect fees | Skipping entirely — going straight to construction without a proper plan often causes costly mid-project changes that end up pricier than the design fee would have been |
Financing the Difference
Very few NYC renovations are paid entirely in cash. If your budget requires financing, options range from a HELOC to a dedicated renovation loan, each with different tradeoffs around flexibility and rate structure — worth reviewing in detail before finalizing a project scope that assumes a specific budget ceiling.
A Realistic Budget Checklist
- Get 2–3 written, on-site estimates before committing — phone or photo-based quotes are rarely accurate for NYC apartments
- Add a 10–15% contingency for unexpected conditions, especially in pre-war buildings
- Separate “must-have” scope from “nice-to-have” finishes so you know where to cut if needed
- Confirm whether the quote includes permit filing, architect fees, and disposal costs, or only labor and materials
- Ask what happens to the timeline and price if the contractor finds something unexpected once walls are opened
Getting an Accurate Number for Your Apartment
Cost ranges are only a starting point — the real number depends on your building’s specific conditions, which is why a free on-site estimate matters more than a phone quote. WhiteStar evaluates plumbing, electrical, and structural conditions in person before pricing a project, whether it’s a single-room kitchen remodel or a full gut renovation, so the number you get reflects your actual apartment rather than a citywide average.
FAQ
Why do quotes for the same apartment vary so much between contractors? Differences usually come down to scope assumptions (what’s included), labor crew structure, and material allowances — not just markup. Compare line items, not just totals.
Is it cheaper to renovate room by room instead of all at once? Not usually — doing everything in one mobilization avoids paying setup/teardown costs multiple times and often gets better material pricing on bulk orders.
Does renovating add value close to what it costs? It depends heavily on the room and the building — kitchens and bathrooms tend to return more of their cost at resale than bedrooms or basements. See our separate guide on renovation ROI for specifics.
How much should I budget for unexpected costs in an older building? 10–15% of total project cost is a reasonable contingency for most pre-war apartments; buildings with known issues (old wiring, lead paint, asbestos-era construction) may warrant more.
Born and raised amidst the hustle and bustle of the Big Apple, I’ve witnessed the city’s many exciting phases. When I’m not exploring the city or penning down my thoughts, you can find me sipping on a cup of coffee at my favorite local café, playing chess or planning my next trip. For the last twelve years, I’ve been living in South Williamsburg with my partner Berenike.