Folsom Building Permits for Remodels: Process, Timelines, and Fees

Permitting is the part of a remodel homeowners understand least and worry about most. It is also the part where an experienced local contractor saves you the most time, simply by knowing what the plan checker will ask for before they ask.

Here is how remodel permitting works in the City of Folsom as of 2026. Note that Folsom is its own jurisdiction — if your home is in unincorporated Sacramento County, El Dorado County, or Placer County, the process differs. We cover that in our three-county comparison.

Do you need a permit?

The general rule: if you are changing structure, adding square footage, or altering electrical, plumbing, or mechanical systems, you need a permit. Painting, flooring, and cabinet refacing generally do not.

Where people get caught out is the middle ground. Replacing a water heater, relocating a sink, adding recessed lighting, or taking out a wall you were told was "non-structural" all typically require permits. So does a great deal of exterior work.

Skipping a permit is a genuinely bad trade. Unpermitted work surfaces during resale, can complicate insurance claims, and correcting it later costs multiples of what the permit would have.

The submittal process

Folsom takes building permit applications through eTRAKiT, its online permit portal. As of late 2025 the city moved new permit intake fully into eTRAKiT rather than the older ProjectDox plan-review system, so make sure any guidance you are following is current.

A typical remodel submittal package includes:

• The permit application
• A site plan showing the property and structures
• Floor plans — existing and proposed
• Elevations and cross sections where the exterior or structure changes
• Structural calculations, where a beam or other structural element is involved
• Title 24 energy compliance documentation
• Your contractor's license and insurance information

Trade permits for electrical, plumbing, and mechanical work are generally pulled separately from the main building permit.

Which code applies to you

California updates its building standards on a three-year cycle. Applications submitted on or after January 1, 2026 must comply with the 2025 California Building Standards Code.

This matters more than it sounds. Energy, ventilation, and electrical requirements shift between cycles. A set of plans drawn against the previous cycle may need revision before it will pass plan check. If you had drawings prepared in 2024 or 2025 and are only now submitting, have your designer confirm they are current.

What it costs

Folsom uses a valuation-based fee schedule for residential remodels — the fee scales with the declared value of the work, starting around $138 for the first $2,000 of valuation and increasing by bracket from there. On top of that the city applies a permit processing fee (roughly $79) plus applicable state and local surcharges.

Plan check fees, school fees where relevant, and separate trade permit fees are additional. For a mid-size kitchen or bath remodel, budgeting one to a few thousand dollars in total permit and plan review cost is realistic. Confirm current figures with Folsom Building Services — fee schedules are adjusted periodically.

How long it takes

This is the question everyone asks and the one with the least satisfying answer, because it depends almost entirely on submittal quality.

• Over-the-counter items — simple trade permits like a water heater replacement — can often issue same day.
• Standard remodel plan review commonly runs a few weeks for a first review.
• Structural work or anything requiring Planning review takes longer, and almost always involves at least one round of corrections.

The single biggest driver of delay is an incomplete first submittal. Every correction cycle restarts a review queue. A package that anticipates the plan checker's questions is worth weeks.

Inspections

Expect inspections at defined stages — typically rough framing, rough electrical/plumbing/mechanical, insulation, drywall, and final. Work must not be covered until the corresponding inspection passes. A contractor who lets drywall go up before a rough inspection has created a demolition problem, not a scheduling win.

Where an HOA fits in

If you are in a Folsom community with an active homeowners association — Empire Ranch, Broadstone, Briggs Ranch, and parts of Folsom Ranch all have them — architectural review is a separate process from the city permit, and it often needs to happen first for anything visible from outside. We cover that in our HOA guide.

The practical takeaway

Permitting is not the obstacle homeowners imagine. It is a predictable process that rewards preparation. What creates pain is discovering mid-project that something needed a permit, or submitting a package that triggers three rounds of corrections.

Related reading

• Three Counties, Three Processes: Permits in Sacramento, Placer & El Dorado
• HOA Architectural Review in Folsom: What Needs Approval Before You Build
• Title 24 and Your Remodel: The Energy Rules That Shape the Project

Planning a project in the Folsom area?

Mohr Construction has been remodeling homes across Folsom, El Dorado Hills, Granite Bay, Roseville, Rocklin, Loomis, Fair Oaks, Orangevale, and Rancho Cordova since 2004 — and we have grown entirely through referrals. We communicate daily, we take on the complicated projects other builders pass on, and we do not cut corners.

Start a conversation about your project or try our remodel cost calculator to get a ballpark before you talk to anyone.