Yes, in almost every case you do need to tell your mortgage company about renovations that go beyond cosmetic work. The standard mortgage agreement most Americans sign includes promises to maintain the property and keep it insured, and major projects can affect both. A good rule: if the work needs a building permit, your lender wants to know. Painting a bedroom or swapping a faucet is your business alone.
What Your Mortgage Agreement Requires
Most residential mortgages in the United States use standardized forms created jointly by Fannie Mae and Freddie Mac, no matter which bank or credit union originated your loan. Two numbered covenants in that document do the work here.
Covenant 5 covers property insurance. You have to keep the home insured against fire, extended-coverage hazards, and anything else the lender specifies. If coverage lapses, the lender can buy a policy on your behalf and bill you. That force-placed insurance typically costs far more than a policy you’d buy yourself, and it protects only the lender’s interest, not your equity or belongings.
Covenant 7, titled “Preservation, Maintenance and Protection of the Property,” requires you to keep the home in good repair and not let it deteriorate. Tearing out load-bearing walls, ripping up plumbing, or leaving the house half-demolished for months while a project stalls all fall within what this covenant exists to prevent. Even a well-intentioned renovation that goes sideways can look like property damage from the lender’s seat.
The enforcement mechanism is the acceleration clause. The standard Fannie Mae security instrument defines “default” to include any breach of a covenant, and once you’re in default, the lender can demand the full remaining loan balance immediately. In practice, lenders rarely jump straight to acceleration over a renovation. But the legal right sits there, and it gives them leverage if they discover unpermitted or damaging work.
Which Renovations Trigger the Rule
Not every project requires a call. The dividing line is roughly whether the work changes the structure, footprint, or use of the home, or just refreshes its appearance.
Projects that generally do not require notification:
- Cosmetic updates such as painting, new flooring, replacing light fixtures, swapping countertops, or refinishing cabinets.
- Like-for-like replacements: a new water heater in the same spot, replacement windows of the same size, or a new roof using the same materials.
Projects that typically do require notification:
- Structural changes, including removing or relocating load-bearing walls, adding a second story, or extending the footprint with a room addition.
- Use conversions, such as turning a garage into a bedroom, finishing a basement into living space, or converting a single-family home into a duplex.
- Major system overhauls: rerouting plumbing throughout the house, upgrading the entire electrical system, or relocating the HVAC.
- Exterior changes affecting value or risk, like adding an in-ground pool, building a detached structure, or significantly regrading the lot.
Permits exist because the local government considers the work significant enough to inspect. Lenders think the same way. If a permit is required, treat lender notification as required too.
What Happens If You Skip the Call
Skipping notification doesn’t always end badly. When it does, the consequences stack up fast.
Insurance Gaps
A major renovation can void your homeowner’s policy if the work creates hazards the insurer didn’t price into your premium, like exposed wiring, a partially demolished roof, or structural instability during construction. If your insurer cancels or declines to renew, the lender finds out through its routine insurance tracking and starts the process of force-placing coverage. Force-placed insurance is expensive and one-sided. All amounts the servicer pays become additional debt secured by your mortgage and accrue interest at your note rate.
Contractor Liens
When you hire a contractor, that contractor may have the right to place a mechanic’s lien on your property if you don’t pay. An unpaid lien can cloud your title and, depending on state law, may even take priority over your mortgage in certain circumstances. Lenders care because their security interest depends on being first in line. Even if you’re paying out of pocket, an unpaid contractor lien discovered later creates a problem for both of you.
Loan Acceleration
If the lender decides your renovation has damaged or devalued the property, or that you’ve violated the insurance or preservation covenants, it can declare the loan in default. Default triggers acceleration, which lets the lender demand the entire remaining balance. Foreclosure follows if you can’t pay. This is the nuclear option, and lenders almost never use it over a kitchen remodel. A botched structural project that leaves the home uninhabitable, or a conversion that violates zoning and can’t get a certificate of occupancy, puts you in genuinely dangerous territory.
How to Notify Your Lender
When you contact your servicer, you’ll need more than a verbal description. Pull together the following before you reach out:
- Your loan account number and property address, so the servicer can find your file.
- Project plans or architectural drawings. For structural work, these should come from a licensed architect or engineer.
- Contractor credentials: a copy of the contractor’s license and a certificate of insurance showing general liability and workers’ compensation coverage.
- Copies of all building permits issued by your local department.
- Total project budget and anticipated start and completion dates. The lender may use this timeline to schedule progress inspections.
Send everything through whatever channel your servicer prefers. Many allow secure digital uploads; others want certified mail. Keep copies and delivery confirmation. Allow several weeks for review, and if the lender approves, get the approval in writing and keep it with your project file.
Extra Rules for FHA and VA Loans
Government-backed loans come with additional oversight. If you have a conventional loan, skip this section.
FHA loans are insured by the Federal Housing Administration under HUD Handbook 4000.1, which requires the property’s structure to remain “serviceable for the life of the mortgage” and its foundation to be “adequate to withstand all normal loads imposed.” Any renovation that undermines structural integrity could jeopardize the FHA insurance on the loan. The FHA offers the 203(k) Rehabilitation Mortgage specifically for financing renovations, with its own inspection and approval requirements. If you’re paying out of pocket, the general property standards still apply.
VA-guaranteed loans require that any alterations or repairs meet the VA’s minimum property requirements and be consistent with similar properties in the community. For VA renovation loans, the lender must get your written approval before each disbursement to the contractor, and any change orders made after the appraisal must be approved in advance by the appraiser to confirm there’s no loss in value.
Other People You Need to Tell
Your lender is not the only party that needs to hear about the project.
Your Homeowner’s Insurance
Notify your insurer before major work begins, and again after it’s finished. During construction, the risk profile of your home changes. Exposed framing, disconnected systems, and construction debris all increase the chance of fire or water damage. Some insurers offer a builder’s risk endorsement or an inland marine policy to cover materials and the structure during the construction phase. Without one, damage that occurs mid-renovation may not be covered under your standard policy.
After the renovation, your home is worth more than it was before, but your policy still reflects the old value. If a fire destroys the house the week after you finish a $100,000 addition, you’ll be underinsured by roughly that amount unless you’ve updated your coverage limits. Call your insurer once the project wraps to adjust your dwelling coverage. The bump in premium is a fraction of what you’d lose from an underinsured claim.
Your HOA
If you live in a community with a homeowners association, the HOA likely has its own approval process running parallel to your lender’s. Most associations regulate exterior appearance through their CC&Rs, covering paint colors, roofing materials, fence styles, and the size of additions. Interior-only work typically falls outside HOA jurisdiction, but any change visible from the outside almost always requires pre-approval.
The standard process involves submitting plans, material samples, and contractor information to the Architectural Review Committee. Approval commonly runs two to six weeks. Skipping this step can result in fines, legal action, or an order to undo the work at your own expense.
After the Work Is Done
The lender’s involvement doesn’t end when construction wraps. Most lenders require some verification that the work was completed as planned. For financed renovation programs, Fannie Mae requires improvements to be complete and verified before the loan can be sold on the secondary market, typically through an appraiser’s completion report. Even if you paid out of pocket, your lender may request a new appraisal to confirm the home’s current market value still supports the loan balance, and will verify that no new liens have been placed on the title.
Then come the costs you didn’t quite plan for. A renovation that adds square footage, converts unfinished space into living area, or adds a feature like a pool will almost certainly increase your property’s assessed value at the next reassessment. Local assessors’ offices routinely monitor building permits, so the reassessment often happens automatically. Higher assessed value means higher property taxes, which feeds directly into your monthly payment if you escrow for taxes. Your servicer’s next annual escrow analysis will likely show a shortfall, raising your monthly payment. Some homeowners are caught off guard by a jump of several hundred dollars per month. If you know taxes are going up, contact your servicer proactively so the adjustment can be spread over time rather than hitting all at once. The higher insurance premium flows through escrow the same way.