# How long does a whole house remodel take?

**Short answer:** A whole house remodel typically takes twelve to twenty four months end to end, with roughly nine to fourteen of those months in construction. The spread is wide because nobody can fully scope a remodel until demolition opens the walls and shows what is behind them, and because permits and long lead materials move on their own schedules.

## Key facts

| Fact | Value | Source |
| --- | --- | --- |
| End to end | 12 to 24 months, design through final inspection |  |
| Construction alone | 9 to 14 months for a full gut |  |
| Contingency to carry | A concealed conditions allowance, separate from design contingency |  |
| Usual finish schedule driver | Millwork and window lead times |  |

## Existing houses do not give up their secrets until you open them

A new build starts from a known condition: empty dirt and a soils report. A
remodel starts from an unknown one. There is a house in the way, and until
demolition exposes the framing, the plumbing and the foundation, everything in
the scope is an educated guess.

That is the whole reason remodel schedules behave differently. The drawings can
be finished and the budget can be signed and the completion date can still move
by months, because the thing that moves it has not been uncovered yet. Most of
the time it turns up in the third week of demolition.

An experienced remodeler manages this with sequencing rather than optimism.
Investigation happens early, selective demolition happens before the drawings
are final where access allows, and the contract carries a concealed conditions
allowance that is separate from the ordinary design contingency. None of that
eliminates surprises. It changes them from schedule breaking events into
budgeted ones.

## A realistic sequence, phase by phase

| Phase | Typical duration | What governs it |
| --- | --- | --- |
| Existing conditions and design | 3 to 7 months | As-built documentation, scope decisions |
| Permitting | 1 to 8 months | Short end for work that stays under full plan check, long end for work that triggers it |
| Demolition and discovery | 3 to 8 weeks | Age of the house, extent of the gut |
| Structural and rough systems | 2 to 4 months | Findings during demolition, inspections |
| Insulation, drywall, interior finishes | 3 to 5 months | Selections and change orders |
| Millwork, counters, tile, fixtures | 2 to 4 months | Fabrication lead times |
| Punch list and final inspection | 3 to 8 weeks | Trade coordination and sign-offs |

Those phases overlap. A schedule that shows them stacked end to end is either
padded or has not been built by someone who has run one. The value of the table
is in the second column: it shows which phases are governed by decisions you
control and which are governed by conditions and agencies you do not.

## The permit question, and when a remodel becomes a full plan check

Owners often assume a remodel is a lighter permit process than a new build. That
is true only when the scope stays inside a narrow band.

Plan on one to eight months for the permit itself. The short end belongs to work
that stays under full plan check. The long end belongs to work that triggers it,
because each round of corrections returns the drawings to the back of the queue.

Work that stays cosmetic, meaning finishes, cabinets in the same footprint, and
replacement fixtures in existing locations, frequently moves quickly and
sometimes over the counter. The moment the scope touches any of the following,
expect a full plan check with drawings, engineering and correction cycles:

- Removing or altering a load bearing wall, beam, post or foundation element
- Changing the building footprint, roofline or exterior wall openings
- Adding square footage, including converting an unconditioned space
- Relocating plumbing or reworking electrical service capacity
- Anything that changes egress, occupancy or fire separation
- Work in a hillside, coastal, historic or otherwise overlaid area

There is also a threshold effect that catches people. Many jurisdictions treat a
remodel that removes enough of the existing structure as substantially a new
building, at which point current code applies to the whole house rather than
just the new work. Energy, structural and accessibility requirements all shift.
A scope creeping toward that line should be evaluated deliberately, because
crossing it accidentally is expensive. Deciding to cross it on purpose is
sometimes the cheaper answer.

## What demolition tends to reveal

### Work done without a permit

Extremely common in older housing stock. A converted garage, an enclosed patio,
a bedroom added in what used to be a porch. Once a permitted project is open,
that work generally has to be legalized or removed, and legalizing it means
drawings, engineering, a retroactive application and inspections.

The way to avoid finding this in week three is to pull the property's permit
history before design starts and compare it against what is physically there. It
is a cheap search and one of the highest value hours on the whole project.

### Structure that was never right

Notched joists, undersized headers, posts landing on nothing, a beam carried by
a wall that was later removed by a previous owner. Older houses also predate
current seismic detailing, so once framing is exposed and a structural engineer
is involved, retrofit work often enters the scope whether or not it was in the
original budget.

### Systems at the end of their life

Galvanized supply lines, cast iron drains, cloth wiring, panels without capacity
for a modern load, ducting in a crawlspace with nothing left to it. Replacing
these while walls are open is straightforward. Deciding not to, and then dealing
with them behind finished drywall in five years, is not.

### Water and what it has been doing quietly

Dry rot at sills and window openings, failed flashing, slab moisture. Water
damage is rarely limited to where it is visible, which is why it is one of the
few discoveries that reliably expands scope in more than one direction at once.

## Living in it or moving out

This is a schedule decision as much as a lifestyle one, and it deserves a real
conversation rather than a default.

**Occupied remodels take longer.** Trades work in phases, tools and materials get
staged and re-staged, dust control gets built and rebuilt, and the crew loses
hours to protecting a household that is still in the building. A rough planning
assumption is that occupying the house adds meaningfully to the construction
window on a full gut.

**Occupied remodels cost more per unit of work.** The same scope, executed in
halves with temporary kitchens and sequenced bathrooms, absorbs more labor.

**Vacating costs rent.** That is the honest counterweight. The comparison worth
running is rent for the shorter schedule against the added construction cost and
longer duration of staying, and on a full gut the math often favors moving out.

For a partial remodel confined to one wing or one floor, staying is usually
workable. For a whole house gut with systems replacement, it rarely is.

## Long lead items, and why millwork usually sets the finish date

Framing and drywall run at the speed of labor. Fabricated items run at the speed
of a factory queue, and that queue does not care about your schedule.

Custom windows, specialty glazing, appliances, plumbing fixtures with long
production cycles, stone slabs and custom millwork all have to be ordered far
earlier than feels natural. Millwork is the one that most often becomes the
critical path on the back half of a remodel, because it sits at the head of a
dependency chain: cabinetry has to be installed before countertops can be
templated, countertops before backsplash, backsplash before final plumbing and
appliance installation, and all of it before final inspection.

Custom cabinetry also cannot be fabricated until shop drawings are approved and
field dimensions are verified, which means the decisions behind it belong in
design. When that sequence is respected, [custom cabinetry](/custom-cabinetry)
lands on site as scheduled work rather than as the thing everyone is waiting on.

## Planning around what you cannot see yet

The right expectation for a whole house remodel is a range with a stated basis,
not a date. Ask a builder what the schedule assumes about the existing
structure, what happens to the calendar if a foundation or framing issue
appears, and which items are being ordered before demolition begins.

Then hold two contingencies: money for concealed conditions, and time for the
permitting and fabrication you do not control. A remodel that budgets for
discovery finishes close to plan. One that assumes clean walls behind the
plaster finishes late, and usually finds out in the third week. The sequencing
that avoids that is the same one used on any
[residential development](/residential-development) project, applied to a
building that already exists.

## Frequently asked questions

### Is a remodel cheaper and faster than tearing down and rebuilding?

Not automatically. Keeping an existing structure means working around framing, foundations and systems you did not design, and the labor to protect and integrate them can exceed the cost of new work. Remodeling wins when the existing shell is sound, when zoning would not allow the same house to be rebuilt, or when the character of the original building is the point.

### What happens if the city finds unpermitted work during construction?

The project usually has to legalize it or remove it. Legalizing means drawings, engineering where structure is involved, a retroactive permit application and inspections that may require opening finished areas. Removal means demolition and restoration. Either path adds cost and calendar time, and both are far cheaper to handle before construction starts than after.

### When should cabinetry be ordered on a remodel?

During design, not during construction. Custom millwork needs approved shop drawings and verified field dimensions, and fabrication runs for months after that approval. Waiting until framing is complete puts cabinetry on the critical path, which then delays countertops, backsplash, appliance installation and final inspection in sequence.

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Source: https://www.tricanagroup.com/insights/how-long-does-a-whole-house-remodel-take
Topic: Timelines & Process
Author: Hagop Sargisian, Tricana Group
Area served: Los Angeles County, CA; Orange County, CA
Published: 2026-06-23T09:00:00-07:00