What happens if you skip the permit (and you needed one)
- Stop-work orders in Romulus carry a $500 civil fine, plus the city will require you to pull the permit retroactively with doubled fees ($400–$1,600 depending on valuation) before any final inspection can occur.
- Insurance claim denial: if water damage occurs during or after unpermitted bathroom work, your homeowner's insurer can refuse the claim outright, leaving you liable for repairs (typically $5,000–$25,000 for water intrusion remediation).
- Title and resale hit: Michigan's Residential Property Disclosure Act requires disclosure of all unpermitted work; buyers' inspectors will flag electrical or plumbing changes, and lenders will refuse to finance the sale until permits are pulled retroactively or the work is removed.
- Code enforcement complaint: a neighbor or inspector can file a complaint that triggers a city inspection and order to cease work, with fines escalating to $1,000+ per day if you ignore the order.
Romulus bathroom remodel permits — the key details
The threshold for permitting in Romulus is straightforward but easy to misinterpret. Per Michigan Building Code (which Romulus adopts), any work that involves moving plumbing fixtures (toilet, sink, shower valve, drain), adding new electrical circuits (dedicated 20A for the exhaust fan or new outlets), installing new exhaust ventilation, or changing the tub-to-shower configuration requires a permit. What makes Romulus specific: the city's online portal (accessible via the City of Romulus website) lets you begin the application, but bathroom remodels often still require phone or in-person submission of construction documents — the portal is not a fully automated intake for plumbing/electrical bundles. The City Building Department's standard practice is to reject incomplete submissions immediately and request re-submission with a detailed floor plan showing fixture locations, drain routing, electrical layout, and ventilation termination. If you're doing a surface-swap (vanity, faucet, toilet, tiles) without moving anything, you do not need a permit. This matters because homeowners often assume a 'full bathroom remodel' always requires a permit; it only does if your scope moves something or adds new systems.
Plumbing code in Romulus is enforced per the IPC 2012 and Michigan amendments. The most common rejection point: drain trap-arm lengths. IRC P2706 limits the distance from a trap to a vent stack; for a typical bathroom, your toilet drain cannot run more than 6 feet horizontally from the vent, and your sink/tub drain cannot exceed 2.5 feet (without a secondary vent). In older Romulus homes, especially those with side-by-side bathrooms, relocating a toilet drain often hits this limit, triggering a requirement for a new vent line or a wet-vent configuration. Second common issue: waterproofing. If you're converting a tub to a shower (or installing a new shower), IRC R702.4.2 requires a continuous waterproofing membrane (cement board plus approved membrane, or a sheet-membrane system like Schluter or Wedi). Inspectors in Romulus require the waterproofing plan to be specified on the permit application and shown in photos during rough-in inspection; generic 'tile + thinset' does not pass. Third: drain sizing. A relocated drain must be sized per IPC tables; undersizing (e.g., trying to fit a shower/toilet combo onto a 1.5-inch line) is a frequent plan-review rejection. The city will ask you to either upsize the drain or relocate the fixtures to a line that already exists and is properly sized.
Electrical code in Romulus (NEC 2014, Michigan amendment) mandates GFCI protection for all bathroom outlets and AFCI protection for bedroom circuits in newer homes. If your bathroom remodel adds any new circuits or outlets, the plan must clearly label GFCI and AFCI locations; inspectors will fail a rough electrical inspection if these are missing. Exhaust ventilation (IRC M1505) requires a dedicated duct to the exterior (not into the attic or soffits), sized per bathroom square footage, with a damper to prevent backflow. Most homes use 4-inch duct; the run length matters — every 90-degree elbow or flexible duct section increases static resistance. Romulus inspectors will ask for the duct route and length on the electrical plan. If your remodel adds a new exhaust fan where none existed, this almost always requires pulling a dedicated circuit and can trigger a service-panel upgrade if your panel is at capacity. A 20A dedicated circuit for a bathroom exhaust fan and lights is standard; the plan must show this on the one-line diagram. Common electrical rejections in Romulus: missing GFCI circuit locations, exhaust duct termination not shown, or existing outlets not retrofitted with GFCI (if the plan calls for replacing outlets, GFCI must be added). Note that Michigan law treats AFCI and GFCI as non-negotiable; some older Romulus neighborhoods were wired in the 1970s-80s without these, and remodels will force the upgrade.
Fixture specifications and water pressure present a subtler but important angle in Romulus bathroom remodels. If you're relocating a shower valve to a new wall, the valve must be specified as pressure-balanced or thermostatic (IRC P2706 and plumbing code amendments). Many inspectors will request a product data sheet showing the valve's pressure-balance range; a standard single-handle valve without balancing will fail rough-in inspection in Romulus. Similarly, if you're adding a toilet in a new location (e.g., converting a powder room layout), the rough-in distance from the wall face to the center of the drain must be 12 inches (or 10 inches in some homes); deviation requires either custom rough-in work or relocation of the wall, a detail that often gets missed in initial design and triggers a second inspection cycle. Lead paint is a critical compliance factor in Romulus for any pre-1978 home: EPA Rule 40 CFR Part 745 applies, meaning you must provide lead-hazard notification (in writing, at least 10 days before work begins), and contractors working on surfaces must be EPA-certified. This doesn't require a separate permit, but it does impose a timeline delay and adds cost (certified contractor labor runs 10-20% higher). The city does not enforce lead rules directly, but if your home is financed or insured, the lender/insurer may require proof of compliance.
Inspection sequence in Romulus typically follows: permit issuance (1-2 business days after approval), rough plumbing (toilet rough-in, drain location, vent line), rough electrical (panel work, new circuits, outlet locations, exhaust fan, GFCI/AFCI labeling), framing/drywall (if walls are moved; often combined with rough electrical), and final (finished surfaces, fixture installations, exhaust duct termination with damper, plumbing final). For a full bathroom remodel with fixture relocation and new electrical, expect 4-5 inspections over 3-4 weeks. Romulus Building Department staffing is lean during peak season (April-October), so scheduling inspection appointments can take 5-7 business days. Some contractors book the next inspection immediately after the current one passes to avoid delays. Final inspection cannot be scheduled until all prior inspections pass, so delays early (e.g., failed rough plumbing due to trap-arm length) cascade into a 2-3 week project extension. Permit fees in Romulus are based on valuation; a $15,000 bathroom remodel typically triggers a $300–$500 permit fee (2-3% of valuation), plus separate electrical and plumbing fees if pulled as separate permits (some applicants file a single combined permit, others separate them; check with the city on current practice). The online portal and in-person visits are both available, but the city's preference during initial intake is increasingly online submission to reduce office crowding. Once submitted, expect a phone call within 1-2 business days if the submission is incomplete.
Three Romulus bathroom remodel (full) scenarios
Plumbing code specifics in Romulus: drain sizing, trap arms, and vents
Romulus enforces the IPC 2012 with Michigan amendments, and the most frequent rejection point in bathroom remodels is incorrect drain sizing or trap-arm length. IRC P2706 limits the distance from a trap (e.g., a toilet's p-trap) to the nearest vent stack to 6 feet for a toilet and 2.5 feet for a lavatory or shower. In many older Romulus homes (particularly 1960s-1980s ranch and colonial layouts), the main vent stack is centrally located, and when you try to relocate a toilet to a wall farther from that stack, you exceed the limit. The code allows a secondary vent (a wet-vent configuration, where the toilet drain ties into a common vent with another fixture, such as a sink drain), but wet-venting must be drawn and approved on the plumbing plan before rough-in inspection. If the plan doesn't show the wet-vent configuration clearly, the inspector will flag it as non-compliant, and you'll be forced to either install a new vent stack (adding $1,500–$3,000 and often requiring roof penetration) or relocate the toilet to a closer wall. Drain sizing is equally critical: a toilet requires a 3-inch line; a sink is typically 1.5 inches; a shower is 2 inches. If you're combining a relocated toilet with a new shower on the same drain line (a common mistake), you must upsize that drain to 4 inches to accommodate the combined flow. The Romulus Building Department provides no variance for undersized drains; the code is enforced strictly.
GFCI and AFCI in Romulus bathrooms: electrical code requirements and common confusion
Romulus adopts NEC 2014 with Michigan amendments, and bathroom electrical is non-negotiable. Every outlet in a bathroom must be protected by GFCI (ground-fault circuit interrupter); this includes outlets within 6 feet of a sink, bathtub, or shower. A single GFCI outlet can protect all downstream outlets on that circuit, or individual outlets can be GFCI-protected. The plan submitted with your permit must clearly mark which outlets are GFCI-protected and which circuit provides that protection. If you're adding new outlets, they must all be GFCI-protected from day one. Many Romulus homeowners don't realize that a GFCI outlet in a bathroom doesn't protect the exhaust fan or light fixture (those are typically on a separate lighting circuit); the inspector will verify that bathroom lighting and exhaust are on their own dedicated circuit, separate from outlet circuits. AFCI (arc-fault circuit interrupter) is a secondary requirement that applies to bedroom circuits in homes built after 2008 (Michigan adopted AFCI requirements in 2011). If your bathroom is adjacent to a bedroom and the bathroom circuit shares a breaker with the bedroom, AFCI may be required; this is a nuance that varies home-to-home, so the city's plan reviewer may call you to clarify the circuit topology. A common rejection: submitting an electrical plan that shows a standard 20A breaker protecting all bathroom outlets without labeling GFCI protection. Romulus inspectors require explicit labeling; they will not infer that GFCI is present just because the circuit is in a bathroom.
251 S. Huron Street, Romulus, MI 48174
Phone: (734) 941-6300 | https://www.ci.romulus.mi.us/ (search 'permits' or 'building department' for current online submission portal)
Monday-Friday, 8:00 AM - 5:00 PM
Common questions
Do I need a permit to replace a faucet or toilet in the same location in Romulus?
No. Replacing a faucet, toilet, or vanity in its existing location is considered maintenance and does not require a permit. You only need a permit if you relocate the fixture to a different wall or location. If you're unsure whether your project moves a fixture or just swaps it in place, contact the Romulus Building Department; they can clarify in 1-2 business days.
What is the frost depth in Romulus, and does it affect bathroom remodels?
Romulus is in climate zone 5A-6A with a frost depth of 42 inches. This primarily affects external plumbing vents: if your remodel requires a new vent stack that penetrates the roof, the vent line below grade must extend below the 42-inch frost line to prevent freezing and blockage. Most bathroom remodels don't involve below-grade vent work, but if you're relocating a main drain or adding a second-floor vent, the frost depth becomes relevant during plan review.
Can I pull a bathroom remodel permit myself as an owner-builder in Romulus?
Yes. Michigan allows owner-builders to pull permits on owner-occupied residential properties. You must live in the home and be the legal owner. However, you must still pass all inspections and comply with the Michigan Building Code. Licensed plumbers and electricians may still be required for their portions depending on the scope — check with the city on whether you can perform plumbing/electrical work yourself or if you need licensed contractors.
What is the typical timeline from permit approval to final inspection in Romulus?
For a simple fixture-swap with no permit required, timeline is 0 days. For a full bathroom remodel with fixture relocation and electrical work, expect 4-6 weeks total: 2 weeks for plan review, 2-3 weeks for construction, and 4-5 inspections spaced 5-7 business days apart. Delays occur if an inspection fails (e.g., trap-arm length rejection) and the work must be redone. Scheduling inspection appointments can take 5-7 business days, so booking early is key.
Do I need a permit to convert my bathtub to a walk-in shower in Romulus?
Yes. A tub-to-shower conversion changes the waterproofing assembly and drain configuration, both of which require a permit. Per IRC R702.4.2, the new shower must have a continuous waterproofing membrane (cement board plus approved membrane, or a sheet-membrane system). The city will require a detailed specification of the waterproofing system on the permit application and an inspection during rough-in before drywall is installed.
What happens if the trap arm on my relocated toilet drain exceeds 6 feet in Romulus?
The city will reject the plumbing plan during review. You'll be required to install a secondary vent (wet-vent configuration) or a new vent stack. A wet-vent allows two fixtures to share a common vent but requires careful design and must be shown on the plan before rough-in inspection. A new vent stack typically costs $1,500–$3,000 and requires roof penetration. Plan your toilet relocation carefully to stay within the 6-foot limit or budget for a secondary vent.
Is lead-paint compliance required for my bathroom remodel in Romulus?
Yes, if your home was built before 1978. EPA Rule 40 CFR Part 745 requires you to provide written lead-hazard notification to contractors and occupants at least 10 days before work begins. Contractors performing renovation work must be EPA-certified. This does not require a separate permit from Romulus, but it adds a 10-day timeline delay and is a legal requirement. Lenders and insurers often verify compliance.
Can I add a heated-floor radiant system in my Romulus bathroom remodel without a permit?
No. Radiant-floor electrical systems require a dedicated circuit and load calculation, both of which must be shown on an electrical plan submitted with a permit. The city will require verification that the circuit is properly sized (typically 20A-30A depending on coverage area) and that GFCI/AFCI protection is specified. A separate electrical permit may be required depending on the city's filing procedures.
What does the Romulus Building Department require on a plumbing/electrical plan for a bathroom remodel permit?
At minimum: a floor plan showing existing and new fixture locations, drain routing with slope direction (1/4 inch per foot), vent-stack locations, supply-line routing, electrical outlet and switch locations with GFCI/AFCI labeling, exhaust fan location and duct route to exterior, and any waterproofing assembly details (if a shower is new or relocated). Incomplete submissions are rejected immediately; expect the city to call or email within 1-2 business days requesting clarification or additional drawings.
Does Romulus have an online permit portal, and can I submit a bathroom remodel permit application there?
Romulus has an online portal accessible through the City of Romulus website. However, bathroom remodels with plumbing/electrical components often still require phone or in-person submission during initial intake to ensure completeness. The portal is best used for simple, single-scope projects. For a full bathroom remodel, contact the Building Department by phone at (734) 941-6300 to confirm whether you can submit online or should come in person with drawings.
More permit guides
National guides for the most-asked homeowner permit projects. Each goes deep on code thresholds, common rejections, fees, and timeline.
Roof Replacement
Layer count, deck inspection, ice dam protection, hurricane straps.
Deck
Attached vs freestanding, footings, frost depth, ledger, height/area thresholds.
Kitchen Remodel
Plumbing, electrical, gas line, ventilation, structural changes.
Solar Panels
Structural review, electrical interconnection, fire setbacks, AHJ approval.
Fence
Height/material limits, sight triangles, pool barriers, setbacks.
HVAC
Equipment changeouts, ductwork, combustion air, ventilation, IMC sections.
Bathroom Remodel
Plumbing rough-in, ventilation, electrical (GFCI/AFCI), waterproofing.
Electrical Work
Subpermits, NEC sections, panel upgrades, GFCI/AFCI, who can pull.
Basement Finishing
Egress, ceiling height, electrical, moisture barriers, occupancy rules.
Room Addition
Foundation, footings, framing, electrical/plumbing extensions, structural.
Accessory Dwelling Units (ADU)
When permits are required, code thresholds, JADU vs ADU, electrical/plumbing/parking rules.
New Windows
Egress, header sizing, structural cuts, fire-rating, energy code.
Heat Pump
Electrical capacity, refrigerant handling, condensate, IECC compliance.
Hurricane Retrofit
Roof straps, garage door bracing, opening protection, FL OIR product approval.
Pool
Barriers, alarms, electrical bonding, plumbing, separation distances.
Fireplace & Wood Stove
Hearth, clearances, chimney, gas line work, NFPA 211.
Sump Pump
Discharge location, electrical, backup options, plumbing tie-in.
Mini-Split
Refrigerant lines, condensate, electrical disconnect, line set sleeve.