Quick Answer: A whole house remodel in San Jose runs 10 to 18 months of construction and 6 to 12 months of design and permitting before that. The two decisions that shape everything else are whether you move out and whether you phase the work. Moving out costs $30,000 to $90,000 in rent but shortens construction by 25 to 40 percent and reduces cost, because crews work without restriction. Phasing feels cheaper and is usually 15 to 25 percent more expensive in total.
A whole house remodel is a different kind of project from a kitchen. The construction is not harder; the management is. It runs long enough that decisions made in month two are being built in month ten, and living arrangements matter as much as the drawings.
Decision 1 · Move out or stay?
This is the first and largest decision, and it is worth making on the arithmetic rather than instinct.
| Move out | Stay in the house | |
|---|---|---|
| Construction duration | 10 – 13 months | 14 – 18 months |
| Construction cost | Baseline | 8 – 15% higher |
| Rent or temporary housing | $30,000 – $90,000 | $0 |
| Moving and storage | $6,000 – $18,000 | $2,000 – $8,000 for partial storage |
| Quality of the work | Better, no restricted access | Good, but more compromises |
| Stress on the household | Low | High, sustained over a year |
Why staying costs more: crews work in a restricted sequence rather than the efficient one, dust containment has to be built and rebuilt as work moves, systems have to stay live so the house remains habitable, and work that would take one uninterrupted week takes three in stages. On a $500,000 remodel, the 8 to 15 percent premium is $40,000 to $75,000, which is in the same range as the rent you avoided.
When staying genuinely makes sense: the remodel excludes at least one bedroom and bathroom that can be sealed off entirely; the kitchen work is a defined period rather than continuous; and the household is two adults rather than a family with young children.
When it does not: the roof is coming off, the HVAC is being replaced, the floors are being redone throughout, or there is only one bathroom. Any of those makes the house effectively uninhabitable regardless of intention.
The pattern we see most often: homeowners intend to stay, then move out in month three, having paid for the containment work and the inefficient sequence anyway. If moving out is a realistic possibility, deciding it up front saves money.
Decision 2 · Phase it or do it at once?
Phasing means doing the kitchen this year, the bathrooms next year, the exterior the year after. It feels financially prudent and is usually more expensive.
| Cost driver | All at once | Phased over 3 years |
|---|---|---|
| Permits and plan check | One submittal | Three, at $2,000 – $8,000 each |
| Mobilisation, dumpsters, toilets, protection | Once | Three times |
| Electrical service upgrade | Once, sized for everything | Possibly twice |
| Design and engineering | One coordinated set | Three sets, sometimes contradicting |
| Finish repair at phase boundaries | None | Real, at every junction |
| Material price escalation | None | 3 – 6% a year |
| Total premium | Baseline | 15 – 25% higher |
Where phasing does make sense: when the money genuinely is not available at once, which is a real constraint and a valid reason. And in a specific order that avoids repeated work:
- Year one: everything structural and infrastructural. Roof, electrical service, plumbing re-pipe, seismic, HVAC, windows, insulation. Unglamorous and it is what makes everything later possible without redoing it.
- Year two: kitchen and primary bathroom. The rooms that change daily life.
- Year three: remaining bathrooms, flooring, paint, exterior.
What does not work is doing the kitchen first and the electrical service upgrade in year three, because the kitchen has to be opened again.
The design and decision timeline
On a long project, decisions have deadlines and they are earlier than people expect.
| Decision | Deadline |
|---|---|
| Layout, walls, structural changes | Before permit submittal |
| Window sizes and locations | Before permit submittal |
| All appliances | Before cabinets are ordered |
| Cabinet style, finish, hardware | Month 1 of construction at the latest |
| Outlet, switch and fixture locations | Before rough electrical, roughly week 4 |
| Plumbing fixture models | Before rough plumbing, roughly week 4 |
| Tile and stone | 6 weeks before the tile setter arrives |
| Flooring | 8 weeks before installation |
| Paint colours | 2 weeks before painting |
The two that catch people are plumbing fixture models before rough plumbing and fixture locations before rough electrical. Both happen in the first month of construction, when the project still feels new and unhurried, and both are difficult and expensive to change afterwards.
Practical approach: make every selection during the permit period, when there is nothing else to do and no pressure. A project that enters construction with all selections made runs dramatically better than one making them week by week.
How to track the money
On a $500,000 project over 14 months, you will not remember what was agreed in month three. Keep three documents:
- The contract with its scope list and allowance schedule. The baseline.
- A change order log, numbered, each with a date, a description, a cost, and a schedule impact in days. Every change goes on it, including credits. This is the document that prevents the month-eleven disagreement about what the total is supposed to be.
- An allowance tracker, showing the allowance amount, what was actually selected, and the difference. Update it as each selection is made rather than reconciling at the end.
Ask for these to be updated monthly and sent to you. A contractor who maintains them anyway is easy to work with; one who does not is where surprises come from.
The weekly rhythm that works
- One scheduled meeting a week, on site, same day and time. Not a stream of texts.
- A written look-ahead: what happens this week, what happens next week, and what decisions are needed by when.
- One point of contact on the contractor’s side and one on yours. Two homeowners giving different instructions to different trades is the most common source of rework.
- Decisions answered within 48 hours. The most valuable thing you contribute to the schedule.
- Photographs before every wall closes. Take your own, of every wall, before drywall. You will want them when you hang a shelf in three years, and if there is ever a defect dispute they matter.
What goes wrong on long projects specifically
- Scope creep. “While you are here” is how a $400,000 project becomes $560,000. Not wrong, but each one should be a priced change order, not a verbal addition.
- Decision fatigue in month eight. Real, and it leads to bad choices made quickly. Front-loading selections during the permit period is the defence.
- The contractor’s crew moving to another job. Ask directly how many projects run concurrently and who is on site daily. A long project is where this shows up.
- Discovery cascading. Opening the whole house means finding everything at once: galvanized pipe, knob and tube, no insulation, an unbolted foundation. On a pre-1970 San Jose house, a 12 to 18 percent contingency is arithmetic.
- The final ten percent. Punch list work drags because crews have moved on. Hold 5 to 10 percent of the contract until the punch list is complete and the final inspection is signed. That withheld payment is your only leverage.
- Losing track of the original reason. Write down, at the start, the five things this remodel is meant to fix. In month ten, when you are deciding between two tile options for the third time, that list is what tells you which decisions actually matter.
Realistic budget shape
| Line | Share of total |
|---|---|
| Construction contract | 68 – 76% |
| Design, architecture and engineering | 7 – 12% |
| City fees and permits | 3 – 6% |
| Contingency | 10 – 15% |
| Temporary housing and storage | 6 – 14% if moving out |
| Furniture, window coverings, landscaping repair | 4 – 9% |
Note that the construction contract is roughly three quarters of the real total. A homeowner who budgets the contract amount and nothing else is short by a third, and that is the most common budgeting error on a project this size.
The short version
- Decide move-out versus stay on the arithmetic, up front. Staying costs 8 to 15 percent more in construction, which is in the same range as the rent.
- Do not phase unless the money requires it, and if you do, infrastructure first.
- Make every selection during the permit period.
- Keep a numbered change order log and an allowance tracker, updated monthly.
- One weekly on-site meeting, one point of contact each side, 48-hour decisions.
- Photograph every wall before drywall.
- Hold 5 to 10 percent until the punch list and final inspection are done.
- Budget the contract plus a third, because that is what the total actually is.
DevArt8 Builders manages whole house remodels throughout San Jose and Milpitas, with a weekly on-site meeting, a numbered change order log and an allowance tracker updated monthly. See our full home remodeling in San Jose page for project detail.
Frequently Asked Questions
Should I move out during a whole house remodel?
Usually yes, and the arithmetic supports it. Staying extends construction from 10 to 13 months out to 14 to 18, and raises construction cost 8 to 15 percent because crews work in a restricted sequence and containment has to be rebuilt as work moves. On a $500,000 remodel that premium is $40,000 to $75,000, which is comparable to the $30,000 to $90,000 in rent you avoided. Staying only works if a bedroom and bathroom can be sealed off entirely.
Is it cheaper to phase a whole house remodel over several years?
No, it is typically 15 to 25 percent more expensive in total. You pay permits, mobilisation, dumpsters, protection and design coordination three times instead of once, repair finishes at every phase boundary, and absorb 3 to 6 percent annual material escalation. Phasing is valid when the money genuinely is not available at once, and in that case do all the infrastructure, roof, electrical, plumbing, seismic, HVAC and windows in year one.
When do I need to have made all my selections?
Ideally during the permit period, before construction starts. The hard deadlines are earlier than people expect: appliances before cabinets are ordered, and both plumbing fixture models and outlet and switch locations before the rough-ins in roughly week four of construction. Those two catch people out because they fall in the first month, when the project still feels unhurried.
How do I keep track of the money on a 14-month project?
Three documents. The contract with its scope list and allowance schedule as the baseline. A numbered change order log with a date, description, cost and schedule impact for every change including credits. And an allowance tracker showing each allowance, what was actually selected, and the difference. Ask for all three to be updated monthly and sent to you.
What should the total budget be, relative to the construction contract?
The construction contract is only 68 to 76 percent of the real total. Add 7 to 12 percent for design and engineering, 3 to 6 percent for city fees, 10 to 15 percent contingency, 6 to 14 percent for temporary housing if you move out, and 4 to 9 percent for furniture, window coverings and landscaping repair. Budgeting the contract alone leaves you roughly a third short, which is the most common error on a project this size.