A companion to How to Document a Lease Violation Properly, What Counts as Normal Wear and Tear, and the Notice to Cure guide. An unauthorized alteration sits at the intersection of all three: it is a lease violation, it is not wear and tear, and it usually starts with a notice.
You do a routine inspection and the beige living room is now a deep matte navy. There are six lag bolts in the drywall where a TV used to hang, the builder-grade dining fixture has been replaced with something the tenant bought at a boutique, and a wall of floating shelves has been anchored into the studs. The tenant is proud of it. They think they improved the place. And you are standing there doing math on what it costs to put the unit back.
A tenant making unauthorized alterations to your rental is one of the more common disputes independent landlords face, and one of the easiest to handle wrong in both directions. Charge for everything and you lose in small claims for trying to bill restoration as if it were wear and tear. Write it all off and you eat a real cost that the tenant, not you, created. The right answer is narrower and more specific than most landlords realize, and it comes down to three questions: is it actually an alteration, does your lease prohibit it, and can you prove the original condition. This guide walks all three.
What counts as an unauthorized alteration?
An alteration is a physical change a tenant makes to the unit that goes beyond ordinary use. The key phrase is “beyond ordinary use.” Living in a place leaves marks, and the law protects tenants from being charged for that. An alteration is different: it is a deliberate modification to the property itself.
Common alterations landlords run into:
- Painting walls, trim, cabinets, or ceilings a color other than what was there.
- Drilling anchor holes for TVs, heavy shelving, or mounts (the small nail holes from hanging a few pictures are usually normal use; a grid of masonry anchors is not).
- Swapping fixtures: light fixtures, ceiling fans, faucets, cabinet hardware, thermostats, or the toilet seat and showerhead.
- Flooring changes: peel-and-stick tile, laminate laid over the existing floor, carpet removed to “expose” hardwood.
- Built-ins and mounts: floating shelves, a mounted headboard, a pot rack, a security camera drilled into the siding.
- Removing landlord property: closet doors taken off, a mirror pulled down, blinds replaced or discarded.
- Bigger jobs: a wall-mounted bidet, a new backsplash, an accent wall of shiplap, a pet door cut into an exterior door.
The line that matters is between an alteration and normal wear and tear. Wear and tear is the gradual, expected deterioration of ordinary living: faded paint, minor scuffs, a few nail holes, worn carpet in traffic lanes. You cannot charge a tenant for any of that, full stop, in nearly every state. An alteration is an affirmative change the tenant chose to make. That distinction decides whether you have a claim at all.
Does your lease actually prohibit it?
Here is the good news for landlords: you almost certainly already have the clause you need. Standard residential leases include an alterations provision, usually something close to “Tenant shall not paint, alter, or make additions to the premises without the prior written consent of the Landlord.” If your lease has that language, an unapproved change is a straightforward breach. You are not inventing a rule after the fact; you are enforcing one the tenant signed.
Read your specific clause before you act, because the wording controls what you can do. Look for three things:
- What it covers. Some clauses list “paint, alter, or improve.” Others are narrower and only cover “structural alterations.” A tenant who repainted may or may not be covered depending on how yours reads.
- The consent standard. Most require written consent. A tenant who claims you said “sure, go ahead” on the phone is on weak footing if the lease requires it in writing, but you are also on weak footing if you cannot show you never consented.
- The restoration obligation. Better leases say the tenant must return the unit to its original condition at move-out, or that any alterations become the landlord’s property. That language matters for who pays later.
If your lease is silent on alterations, you are relying on the general rule that a tenant may not commit “waste” (permanent damage to the property) and may not make material changes without the owner’s consent. That is a weaker footing than a clear clause, which is why it is worth adding a specific alterations provision to your lease at the next renewal.
Can you charge to restore the unit?
Yes, usually, but only for the right amount. This is where landlords overreach and lose. The rule is that you can recover the reasonable cost of restoring the unit to its move-in condition, minus normal wear and tear you would have had to address anyway. You are entitled to be made whole, not to a free renovation.
Two examples make the line concrete:
- The navy accent wall. A tenant painted one wall a dark color. That wall had been repainted landlord-white eight months before move-in, so it was not due for repainting. You can generally charge the reasonable cost to prime and repaint it back, because that cost exists only because of their change. If instead the whole unit had not been painted in six years and was going to need repainting regardless, you can usually only charge the extra cost the dark color caused (an added coat, primer to cover it), not the full repaint you owed anyway.
- The swapped light fixture. The tenant took down your $40 builder fixture and installed a $200 one they liked. If they offer to leave the nice fixture, great, but you cannot make them, and you cannot charge them for “installing” something. What you can require is that they either reinstall your original fixture (which they should have kept) or pay to replace it if they threw it out, plus reasonable labor. If they damaged the wiring or the ceiling box doing it, that is a separate damage item.
The math is always the same: your recoverable amount is the restoration cost minus what wear and tear would have cost you anyway. And every dollar of it has to survive the deposit rules in your state, which cap what you can deduct, require an itemized statement, and set a deadline. See the itemized deposit deductions guide for how to write a deduction that holds up.
The right way to respond while they still live there
If you discover the alteration mid-lease (at an inspection, a repair visit, or because the tenant told you), you have more leverage than you do at move-out, because you can require them to fix it while they still have access and an incentive to keep their deposit. The clean path is a notice to cure.
1. Document it first. Before you say a word, get dated photos of the alteration from multiple angles, and pull your move-in record so you can show the before state. You want the paper trail to exist before the conversation, not after.
2. Send a written notice to cure. Cite the exact alterations clause from the lease, describe the specific change, and state what “cure” means: restore the wall to its original color, reinstall the original fixture, remove the anchors and patch the holes, by a specific reasonable date. This is a standard lease-violation notice; the notice to cure guide covers the format and timing your state requires.
3. Decide whether to consent instead. Sometimes the alteration is fine and you would rather keep it. You can consent after the fact, in writing, and even negotiate: the tenant keeps the shelves if they agree in writing to remove them and patch the wall at move-out, or you approve the paint color on the condition they return it to white. Put whatever you agree to in writing so it is not a memory contest later.
4. If they cure, close it out. Re-inspect, photograph the restored condition, and note the resolution in your file. If they refuse, the unresolved violation becomes part of your record and can support further action under your lease and state law, up to and including non-renewal or the eviction process for an uncured material breach.
Handling it mid-lease almost always beats waiting for move-out. At move-out the tenant has left, the deposit clock is running, and your only remedy is a deduction they can dispute. Mid-lease, they can simply put it back.
Documenting it so the claim actually holds
Every version of this dispute lands on the same question: what did the unit look like before the tenant changed it? An alteration claim is really a comparison claim. You are asserting that a wall was white and is now navy, that a fixture was builder-grade and is now missing, that a floor was bare and now has adhesive residue. If you cannot prove the “before,” you cannot prove the “after” is a change the tenant made, and the whole claim collapses into your word against theirs. In small claims, that usually means you lose.
That is why the move-in record is the foundation of any alteration claim, long before an alteration ever happens. A dated, tenant-acknowledged record of the original condition, room by room with photos, is the evidence that turns “I think it was white” into “here is the signed, timestamped record showing it was white on the day they moved in.” Pair that with dated photos of the alteration itself and the notice you sent, and you have a clean, three-part file: original condition, the change, and your response.
This is exactly the kind of record DiscoveryMark is built to produce. Instead of a lease-violation notice buried in your email and photos scattered on your phone, the lease violation flow captures the incident, the clause you are citing, dated photos, the notice, and how it was delivered onto one finalized, signed PDF. And it ties back to the move-in record that proves the original condition, so the before and the after live together instead of in two different places you have to reassemble under deadline.
For the move-in side of the record, here is what the tenant-completed condition flow looks like from their phone. They open a passwordless link, walk each room, add photos, and sign, which is what gives you the dated baseline every alteration claim depends on.
When an alteration is actually damage (or an emergency)
Not every unauthorized change is a tidy paint-and-patch. Some cross into real damage or safety problems, and those are handled differently:
- DIY electrical or plumbing. A tenant who rewired a fixture, added an outlet, or replumbed a sink may have created a code violation and a hazard. This is not just an alteration to restore; it may need a licensed pro to inspect and correct, and the cost of making it safe is chargeable.
- Structural changes. Removing a wall, cutting into framing, or altering load-bearing elements is waste, a serious breach in almost every lease, and potentially a permit issue you now own.
- Exterior and shared-area changes. Painting the front door, installing a satellite dish, or drilling into brick can trigger HOA fines or violate local rules, which land on you as the owner.
- Anything creating a habitability or safety risk. If the change made the unit unsafe, treat it with the urgency you would any emergency maintenance issue, document it, and address it promptly regardless of the fault question.
In these cases you are documenting two things at once: the unauthorized alteration as a lease violation, and the resulting condition as damage. Both belong in the record.
Frequently asked questions
Can a tenant paint the walls without permission? In almost all cases, no, not if your lease has a standard alterations or “no painting without written consent” clause, which most do. If they paint anyway, it is usually a curable lease violation. You can require them to return the walls to the original color or charge the reasonable cost to do so, limited to the amount beyond a repaint you would have owed as normal wear and tear anyway. You can also choose to consent after the fact if you like the color.
Can I charge a tenant for restoring an unauthorized alteration? Generally yes, for the reasonable cost to return the unit to its move-in condition, minus normal wear and tear you would have had to address regardless. You cannot charge for a full renovation, only for undoing their change. Every deduction has to be itemized and comply with your state’s deposit rules and deadlines, and you need to prove the original condition to justify it.
What if the tenant says the alteration is an improvement? It does not matter whether it improved the unit in your opinion or theirs. The lease controls, and the standard is your written consent, not the tenant’s taste. A nicer fixture the tenant installed without asking is still an unauthorized alteration. You can accept it if you want it, but you are not required to, and you can require them to restore the original.
Do I have to let the tenant keep improvements they made? Usually the opposite: many leases state that any alteration either becomes the landlord’s property or must be removed and the unit restored at move-out, at your option. You generally cannot be forced to buy or keep a tenant’s addition. Check your specific lease language, since it sets the rule.
How do I prove the unit’s original condition? With a dated move-in record: room-by-room photos and notes the tenant reviewed and acknowledged at the start of the tenancy. That baseline is what lets you show a change is a change and not something that was always there. Without it, an alteration claim is your word against the tenant’s, which is a weak position in a deposit dispute or small claims court.
The bottom line
A tenant making unauthorized alterations is not a gray area as often as landlords fear. Most leases already prohibit it, most changes are clearly beyond normal use, and you can usually require restoration or charge the reasonable cost to undo them. The two places landlords go wrong are overreaching (billing restoration as if the tenant owed you a brand-new unit) and under-documenting (having no proof of what the unit looked like before).
Get the response right by handling it mid-lease with a notice to cure when you can, charging only for the gap between the alteration and normal wear, and building the file the moment you find the change. And get the foundation right long before that, with a dated move-in record that proves the original condition. The alteration is only chargeable if you can show what it altered. This is general information, not legal advice for your state, so confirm your local deposit rules and lease-enforcement steps, or have a local attorney review your alterations clause, before you rely on it.
