Why Remodel Timelines Change: Permits, Materials, and Hidden Conditions

Permits and plan-check are usually the first surprise

Most homeowners underestimate how long permits take. On Westside projects, 6–12 weeks of plan-check for a kitchen or bath is typical. Calabasas hillside projects can run longer because of soils-report and grading review. Malibu coastal-zone projects with Coastal Development Permit review can run 6–18 months on the planning side alone. HOA architectural review adds another 4–8 weeks where it applies.

Building this time into your front end — not your back end — is the difference between a frustrating remodel and a calm one. Reaching out to a contractor 6–12 months ahead of when you would like construction to start is reasonable for most projects.

Material lead times are usually the second surprise

Cabinetry is usually the longest single lead time on a kitchen project — 8–16 weeks for semi-custom, longer for fully custom. Imported stone slabs can run 6–12 weeks from order to delivery. Specialty windows, doors, and appliances sometimes run longer than the construction itself.

A competent project sequences demolition, structural, and rough-in work so framing and inspections clear before long-lead items arrive. That way an unrelated lead-time slip cannot ripple into the rest of the schedule.

Hidden conditions are the third surprise (and often the biggest)

Older Westside homes routinely surface things during demo that nobody knew about:

• •Knob-and-tube wiring or aluminum branch wiring that should be replaced
• •Galvanized supply lines that are at or past end of life
• •Cast-iron drain lines with rust-thinned walls
• •Asbestos in old flooring, insulation, or popcorn ceilings
• •Water damage, dry rot, or substrate failure under tile or vinyl
• •Unpermitted prior work that has to be either documented retroactively or removed
• •Undersized framing on additions that need a new load path

How good contractors handle the variability

The difference between a project where the timeline drifts gracefully and one that becomes a fight is how change orders are handled. Every discovery should produce a photo, a written cost-and-time impact, and your approval before the next move. Silent absorption followed by surprise-billing at the end is the failure mode.

A contract with a documented contingency line (often 5–15% of project value for older homes) is also honest planning. It is not padding. It is acknowledging up front that some unknowns will surface, and reserving the budget room to handle them without renegotiating.

What you can do as a homeowner

Three practical things help most:

• •Start your timeline conversation early — 6–12 months ahead of when you want construction to begin, longer for coastal-zone or substantial-addition projects
• •Read the contract for how change orders work, what the contingency is, and what triggers a notification before assuming the cost-and-time impact
• •Pick a contractor whose first instinct in the consultation is to name where the project might surprise you — not one whose first instinct is to make you feel comfortable signing