Tile Installation in Lafayette, CO

Tile itself is one of the few things Lafayette explicitly says you don’t need a permit for. That’s a simple rule on its own, but real tile work — a new shower, a re-tiled bathroom floor, a kitchen backsplash tied into new outlets — almost always comes wrapped inside a remodel that does need one. We plan tile scopes around that distinction rather than around the tile line item alone.

The Exemption, and Where It Stops Applying

Lafayette’s 2026 code lists tiling directly among the exempt finish-work items, alongside painting, papering, flooring, and countertops: none of those need a stand-alone building permit. On its own, retiling an existing floor or wall in place, with no plumbing or structural change underneath it, falls under that exemption.

The exemption stops applying the moment tile work is part of a larger scope — a new shower pan, moved plumbing, a wall removed to open up a bathroom, or new electrical for a heated floor. In practice, most of the tile work we do in Lafayette is bundled into a bathroom or kitchen remodel’s Small Residential permit, estimated at 2 to 3 weeks of processing, rather than pulled separately.

Waterproofing and the Pre-Cover Inspection

We did not find a Lafayette page that names a shower-pan or wet-area waterproofing inspection specifically. What the City’s code does have is the general lath/gypsum board inspection, and it’s written in a way that reaches tile backer directly: gypsum panel products used as a waterproof joint or a nonabsorbent surface — which describes cement or tile-backer board behind a shower — are called out as the kind of assembly that is not exempt from that inspection. In practice, that means the backer board behind a tiled shower has to be inspected in place before the waterproofing membrane and tile go over it, the same as any other rated or waterproof gypsum assembly in the City’s code.

The City’s code also has a separate inspection for weather-exposed balcony and walking-surface waterproofing, for exterior elevated surfaces with an impervious moisture barrier over structural framing — that’s a different, outdoor-facing rule and not a substitute for the indoor shower detail above.

Plumbing Tests Before the Tile Goes On

Where a tiled shower or tub surround involves new or moved drain, waste, and vent piping, Lafayette’s plumbing code requires that piping to pass a test before it’s closed in: a water test to at least 10 feet above the highest fitting held 15 minutes, an air test at 5 psi held 15 minutes, or a vacuum test at −5 psi held 15 minutes. New water supply piping is tested separately, at not less than 50 psi, held 15 minutes, using potable water. Both tests happen before the wall is closed up, which in a tiled shower means before the backer board and tile go on, not after.

Inspection scheduling for these rough tests follows the City’s general rules: requests for the next business day are due by 3 p.m., inspections generally happen between 9 a.m. and 4 p.m., and an adult needs to be on site with the approved field plans, or a $75 reinspection fee may apply. We do not set backer board or membrane until the plumbing test behind it has already passed.

Safety Glazing Near Tubs and Showers

Where a tile project includes glazing near the tub or shower — a window within the hazardous-location distance the code describes, or an enclosure with glass panels — Lafayette’s window and door guidance points to the 2024 IRC’s safety glazing requirements for locations near tubs and showers. We check glazing locations against that requirement whenever a bathroom’s window or enclosure layout changes as part of the tile scope.

What’s Not on a Lafayette Page

Slope-to-drain figures, curb height, or a named adoption of an ANSI or TCNA tile-setting standard: we did not find any of that spelled out on the City’s own pages. That doesn’t mean it’s unregulated — it’s governed by the base adopted 2024 IRC and IPC provisions rather than a separate Lafayette restatement, so we build to those base-code standards and don’t claim a local variant that isn’t published.

Where tile is bundled into a bathroom or kitchen remodel rather than standing alone, it shares that project’s permit expiration clock: work has to start within 180 days of issuance and all inspections have to close out within 3 years. On a phased renovation, we plan the tile stage early enough in that window that it is not the item holding up final sign-off.

How We Sequence Lafayette Tile Work

We start by checking whether the tile scope stands alone under the finish-work exemption or is part of a larger permitted remodel. Where plumbing changes, we rough in drain, waste, vent, and supply lines and hold for the water, air, or vacuum test and the supply pressure test before anything closes up.

Backer board goes up next, held for the gypsum inspection where the assembly is a waterproof joint or nonabsorbent surface, then waterproofing membrane, tile, and grout follow once that inspection clears. Fixtures, glazing, and trim close out the job, with a final inspection where the surrounding remodel requires one.

Common Questions

Do I need a permit just to retile my bathroom floor in Lafayette?
Not by itself. Lafayette’s code lists tiling among the exempt finish-work items alongside painting, flooring, and countertops. It’s a different story once plumbing, walls, or electrical change as part of the same project.

Does the tile backer board behind my shower get inspected in Lafayette?
The City’s gypsum board inspection specifically calls out waterproof-joint and nonabsorbent-surface assemblies — which describes shower backer board — as not exempt from that inspection, so it has to be seen before it’s covered with membrane and tile.

What plumbing tests happen before a tiled shower is closed up?
New drain, waste, and vent piping is tested by water, air, or vacuum test held 15 minutes, and new supply piping is tested at not less than 50 psi held 15 minutes — both before the wall is closed in.

How long does a bathroom remodel permit take if it includes new tile?
When tile is part of a bathroom or kitchen remodel, it typically falls under that project’s Small Residential permit, estimated at 2 to 3 weeks of processing.

Talk to Us About Your Project

Tell us what you’re planning and we’ll walk through how Lafayette’s permit process, inspections, and code requirements apply to your specific project.