A gut renovation takes a house back to its framing and rebuilds it: new layout where needed, new plumbing, wiring and HVAC, insulation, drywall, kitchen, bathrooms and finishes throughout. It is the largest remodel you can do without tearing the house down, and it is priced by the square foot for a reason. Almost every system in the house gets replaced, so the size of the house drives the cost.
Gut Renovation Cost Per Square Foot by Level
Not every “gut” is the same project. These four levels cover what we see across South Jersey and the Main Line:
| Renovation level | Cost per sq ft | What it includes |
|---|---|---|
| Mid-level remodel (not a full gut) | $100–$200 | Kitchen and baths updated, new floors and trim, selective electrical and plumbing upgrades. Walls mostly stay. |
| Full gut renovation | $200–$350 | Down to the studs: new systems, insulation, drywall, kitchen, baths and finishes throughout, with some layout changes. |
| Gut with structural changes | $300–$450 | Removed bearing walls, new beams, reframed floors or stairs, roof work. Engineering and more inspections. |
| Luxury or historic gut | $350–$500+ | Custom millwork and cabinetry, premium finishes, or period-matched work in stone, plaster or older framing. |
For lighter-touch projects, see our broader home remodel cost per square foot guide.
Full Gut Renovation Cost by House Size
Applying the full-gut range to common house sizes in our markets:
| House size | Full gut ($200–$350/sq ft) | Gut with structural or luxury scope ($350–$500/sq ft) |
|---|---|---|
| 1,200 sq ft | $240,000–$420,000 | $420,000–$600,000 |
| 1,500 sq ft | $300,000–$525,000 | $525,000–$750,000 |
| 2,000 sq ft | $400,000–$700,000 | $700,000–$1,000,000 |
| 2,500 sq ft | $500,000–$875,000 | $875,000–$1,250,000 |
| 3,000 sq ft | $600,000–$1,050,000 | $1,050,000–$1,500,000 |
Smaller homes usually cost more per square foot, not less. A 1,200 sq ft house still needs a full kitchen, at least one full bathroom, a new electrical panel and a heating system, and those fixed costs are spread over fewer square feet. That’s why a small rowhome or Cape can land at the top of the range even with modest finishes.
Where the Money Goes in a Gut Renovation
A rough breakdown of a typical full-gut budget:
| Category | Share of budget | Notes |
|---|---|---|
| Kitchen | 15–25% | A gut kitchen alone typically runs $60,000–$110,000, more for full custom. |
| Bathrooms | 10–20% | $25,000–$50,000 per full bath taken to the studs; primary suites run higher. |
| Mechanical, electrical & plumbing | 15–25% | New panel and wiring, supply and drain lines, HVAC and ductwork. |
| Framing, insulation & drywall | 10–15% | Includes any structural repairs found once walls are open. |
| Flooring, trim, doors & paint | 10–15% | Hardwood, tile, interior doors, casing and base throughout. |
| Demolition, permits, design & engineering | 8–12% | Dumpsters, hazardous material testing, drawings, permit fees. |
For room-level numbers, see our kitchen remodel cost guide and bathroom remodel cost guide.
What Pushes a Gut Renovation to the Top of the Range
The age of the house
Homes in Haddonfield, Collingswood, Swarthmore and much of the Main Line were built before 1940. Opening their walls often turns up knob-and-tube wiring, undersized framing, settled floors and old cast-iron or galvanized plumbing. Homes built before 1978 also need lead-safe work practices under the EPA’s Renovation, Repair and Painting rule, and older homes should be tested for asbestos in plaster, flooring and pipe insulation before demolition.
Layout changes
Keeping kitchens and bathrooms where they are is the biggest money saver in a gut renovation. Moving them means new drain lines, venting and sometimes new floor framing. Removing a bearing wall means an engineered beam and posts carried down to the foundation.
Systems you can’t see
A 100-amp service rarely survives a gut renovation in a home with a modern kitchen, central air and an EV charger. A 200-amp upgrade, new ductwork for central air in a house that never had it, and a new water heater or boiler add up quickly. These upgrades are also what makes the house comfortable for the next 30 years.
Finish level
Finish choices swing the number most. Stock cabinets versus custom inset cabinetry, engineered flooring versus site-finished hardwood, and builder-grade fixtures versus designer lines can separate two identical floor plans by $100 per square foot or more.
Gut Renovation vs. Addition vs. Rebuild
A gut renovation fixes everything inside the walls you have. It doesn’t add space. If the house is the right size but tired, a gut is usually the right call. If it’s too small, many families combine a gut renovation with an addition. New square footage typically runs $250–$400 per square foot (see our home addition cost guide). When the foundation, framing and layout are all wrong, a teardown and rebuild can make more sense, but zoning, setbacks and historic-district rules often favor renovating what’s there.
How to Budget a Gut Renovation
Start with the per-square-foot range that matches your scope, then add a 10–15% contingency for what turns up when walls come down. In a pre-war home, plan for the high end of that contingency. Price design and engineering separately from construction, and ask any contractor to show you allowances for cabinets, tile and fixtures in writing. Vague allowances are where most gut renovation budgets go wrong.
Gut renovations can also be financed with cash-out refinancing, a HELOC or a renovation mortgage. If you’re buying a house that needs a full renovation, a 203(k) renovation loan can roll the purchase and the work into one mortgage.
Gut Renovation Cost FAQ
How much does a full gut renovation cost per square foot?
In New Jersey and on the Main Line in 2026, a full gut renovation typically costs $200 to $350 per square foot. Historic homes, structural changes and luxury finishes push it to $350–$500 or more.
How much does it cost to gut and remodel a 2,000 sq ft house?
Roughly $400,000 to $700,000 for a full gut renovation, and $700,000 to $1,000,000 or more with structural changes, custom millwork or premium finishes.
Is a gut renovation cheaper than building new?
Usually, yes. A gut renovation reuses the foundation, framing and shell, and it avoids demolition and new-construction site costs. When the structure itself is failing, a rebuild can make more financial sense.
How long does a gut renovation take?
Most whole-house gut renovations take six to twelve months of construction, plus two to four months of design, engineering and permits beforehand.
Can I live in my house during a gut renovation?
For a whole-house gut, almost never. Water, power and heat are off for stretches, and the dust and safety issues are significant. Phased renovations, done one floor at a time, sometimes let families stay.
What is the difference between a gut renovation and a remodel?
A remodel updates finishes and some systems and leaves most walls in place. A gut renovation removes interior finishes down to the framing and replaces the systems, insulation and finishes throughout.
Planning a Gut Renovation in NJ or on the Main Line?
We’ll walk the house, tell you what the walls are likely hiding, and give you an honest per-square-foot range before you commit to anything.