Bathroom Remodel Permit in Boise City, ID (2026)

Research by DoINeedAPermit Research Team · Updated May 2026

The Short Answer

A full bathroom remodel requires a permit if you relocate any plumbing fixture, add electrical circuits, replace the tub-to-shower assembly, install a new exhaust fan duct, or move walls. Surface-only work — new tile, vanity swap in-place, faucet replacement — does not require a permit.

Boise City enforces the 2020 Idaho Building Code (IBC 2020), which the city adopted on January 1, 2021. This puts Boise one full code cycle ahead of some Idaho counties, meaning stricter exhaust-fan duct requirements and waterproofing specs than you'd face in unincorporated Ada County or surrounding jurisdictions. Boise's building department processes bathroom remodels through its online permit portal, allowing most single-bathroom projects to be filed over-the-counter and approved within 2-3 business days if the plan is clean — a significant advantage over counties still using paper-only filing. However, Boise's 2020 IBC adoption also means your shower waterproofing must meet IRC R702.4.2 (cement board + two-layer membrane or approved equivalent) and exhaust fans must terminate to outside through a duct (IRC M1505), not into an attic or soffit — rules that differ from older installations in older neighborhoods. Plan-review fees range $200–$400 depending on scope; inspection fees add $150–$300. The city also enforces Idaho's lead-paint disclosure rules for homes built before 1978, which do not require a permit but do require written notice before work begins.

What happens if you skip the permit (and you needed one)

Stop-work orders issued by Boise Building Department carry a mandatory re-inspection fee of $200–$300, plus double permit fees once you file retroactively — total damage $500–$1,100 on a typical bathroom job.
Insurance claim denial: if water damage occurs post-remodel and adjuster discovers unpermitted plumbing or electrical work, your homeowner's policy will likely deny coverage, leaving you liable for repair costs ($5,000–$25,000+ for water damage).
Forced disclosure at sale: Idaho real-estate law requires sellers to disclose unpermitted work to buyers; buyers often reduce offer by 5–10% of home value ($10,000–$50,000 on a median Boise home) or demand removal/correction.
Refinance or FHA loan block: lenders performing appraisals will flag unpermitted bathroom work and require permit-and-inspection clearance before funding, adding 4–8 weeks and $500–$1,000 in retrofit costs.

Boise City bathroom remodel permits — the key details

Boise City adopted the 2020 Idaho Building Code effective January 1, 2021, aligning with the 2018 International Building Code (IBC) and International Residential Code (IRC). The city's Building Division interprets these codes through a series of internal guidelines and periodic memo updates, available on the city's permit portal. The critical threshold for a bathroom remodel is whether you are relocating a plumbing fixture, adding new electrical circuits, changing the shower assembly, or moving framing. If any of these apply, a permit is required. The city defines "full bathroom remodel" as a project that typically involves demo, rough plumbing, rough electrical, framing changes, and finish work. If you are only replacing in-place fixtures — a vanity in the same footprint, a toilet, a faucet, or tile on existing walls — no permit is required. This distinction is important: many Boise homeowners assume any bathroom work needs a permit, but surface-only swaps do not. The city's online permit portal includes a quick-reference checklist under "Bathroom Remodeling" that helps clarify this boundary. One unique feature of Boise's enforcement is that the city's Building Division actively cross-references unpermitted work with real-estate listing photos and public record sales data, meaning an agent photographing a remodeled bathroom for MLS listing without a permit on file is likely to trigger a city inquiry.

Plumbing code compliance is the most frequent rejection point for Boise bathroom permits. IRC P2706 governs drainage fittings, but the local code enforcement focuses heavily on trap-arm length and slope. When you relocate a toilet or vanity, the drain line must slope at 1/4 inch per foot and the trap arm (the line from fixture to main vent) cannot exceed 6 feet without a vent tee — this is a hard line in Boise inspections, and violations result in a "rough plumbing failed" notice requiring rework before proceeding. Additionally, any relocated toilet or sink must connect to an existing clean-out or you must install one within 3 feet of the fixture. Boise's 24–42 inch frost depth (the city sits at 2,700 feet elevation on the Snake River Plain and experiences winter lows around –10°F) does not directly affect interior bathroom plumbing, but if your home has a basement or crawlspace, any new vent termination on the exterior must clear the roof by at least 2 feet to avoid ice damming and clogging — inspectors will flag this if you're not explicit on your plan. Another critical detail: if you are replacing an existing tub with a shower (or vice versa), the city treats this as a change to the "water-absorbing assembly" and requires a waterproofing plan showing the specific membrane system — cement board plus two-layer membrane (per IRC R702.4.2) is the most common approach and is pre-approved in Boise's standard plans, but other systems (like liquid membranes or pre-assembled waterproofing panels) must be detailed with manufacturer data sheets and are subject to plan-review variance, adding 1–2 weeks. The city does not permit acrylic or fiberglass surround alone for new construction or major conversions; that restriction applies even in remodels where you're gutting to the studs.

Electrical compliance is the second-most-common remodel rejection reason. Any new circuit added to a bathroom must be on a 20-amp GFCI-protected branch circuit per NEC 210.8(A)(1), and all outlet locations must be shown on a floor plan with a legend indicating GFCI-protected, AFCI-protected, or standard outlet. Boise's 2020 IBC adoption brings the latest NEC requirement that all circuits in a bathroom (not just wet areas) must be AFCI-protected at the breaker or outlet level. If you're not adding circuits but are rearranging outlets or adding a new light fixture on an existing circuit, the circuit must be identified on your plan and confirmed to have adequate load capacity. A common miss: homeowners add a heated towel rack or heated floor mat without noting it on the electrical plan, and the inspector red-tags it as an unapproved load on an undersized circuit. Another gotcha: if your bathroom has a whirlpool tub or spa, it must be on a dedicated 20-amp circuit with GFCI protection — this is a separate requirement from standard outlets. The city's permit form includes a dedicated checkbox for "Whirlpool/Spa Tub," and if you miss it, the electrical inspector will hold the permit until the circuit is documented. Exhaust fans also fall under electrical: any new exhaust fan must be on a separate 15-amp or 20-amp circuit (not shared with lights or outlets) and must be hard-wired (not plug-connected). The fan motor must be rated for wet locations (UL 2134) and the duct must be smooth-wall aluminum or rigid PVC, minimum 4 inches diameter, with no damper or backdraft preventer installed — Boise inspectors explicitly prohibit dampers because they reduce airflow below IRC M1505 minimums.

Ventilation is a specific pain point in Boise, driven partly by the city's climate and partly by 2020 IBC strictness. IRC M1505.2 requires exhaust fans to move a minimum of 1 CFM per square foot of bathroom floor area, or 50 CFM minimum, whichever is greater. For a 50-square-foot bathroom, that's 50 CFM; for a 100-square-foot bathroom, that's 100 CFM. Boise inspectors will look up your fan model number and confirm the CFM rating against the bathroom size on your plan. If you're under-sizing the fan (a very common DIY error), the inspector will fail rough electrical and require an upgrade. The duct must run to the exterior — not to an attic, soffit, or crawlspace — and must terminate with a roof or wall cap that opens outward and closes when the fan is off. In Boise's climate, many homes have soffit returns into attics; newer code (and Boise 2020 enforcement) prohibits this because it allows moisture accumulation, mold growth, and insulation deterioration in the cold season. If your bathroom lacks exterior ductwork and you need to install one, this often means cutting through exterior walls or roof, which can trigger structural or energy-code review (if you're over 25% of wall area in demo) — plan on 1–2 extra weeks if ductwork is needed. The city's permit form requires you to specify the exhaust-fan CFM, duct size, and termination location on the floor plan; failure to do so will result in a plan-review hold until you provide a duct diagram from the fan manufacturer or your contractor.

Final inspection and lead-paint disclosure complete the permit workflow. Once rough plumbing, rough electrical, and framing (if applicable) are signed off, you can move to drywall and finish. For a typical full bathroom remodel in Boise, the final inspection includes a walk-through of all plumbing fixtures (flow test on showers and sinks, flush test on toilet, check for leaks), electrical outlet and switch function, exhaust-fan operation and duct seal, and surface finishes (tile, caulk, grout). Inspections are typically scheduled online through the city's portal and occur within 2–3 business days of request. The final inspection must be passed before a Certificate of Occupancy or final permit sign-off is issued; without it, the project is officially incomplete. Notably, Idaho state law (not just Boise code) requires that if your home was built before 1978, you must provide a lead-paint disclosure form to any contractor and retain proof of delivery before work begins — this is not a permit requirement but is a legal requirement and is often enforced by the city during the permit-application process (some inspectors will ask to see proof at rough-plumbing or final inspection). The disclosure form is free and available through the EPA website; Boise's building department does not provide one, but will accept the standard EPA form. Failure to provide the disclosure can result in fines up to $16,000 per violation under federal law, and the city Building Division is increasingly aware of this requirement and will flag it if documentation is missing.

Three Boise City bathroom remodel (full) scenarios

Scenario A

Tile and vanity swap in-place, same-location toilet — south Boise ranch home, 40 sq ft bathroom

You're replacing the existing ceramic tile on walls and floor with new tile, installing a new vanity in the same footprint (same drain and supply lines), and swapping the old toilet with a new low-flow model on the same closet flange. No plumbing lines are moved, no electrical circuits are added, and the existing exhaust fan remains unchanged. This is classified as surface-only or cosmetic work under Boise code and does not require a permit. The city's Building Division will not issue a permit for this scope, even if you request one. However, before you begin, verify with the plumber that the existing drain lines (especially the toilet closet flange) are in good condition — if the flange is damaged and requires relocation or the drain line needs to be resloped, this triggers a permit requirement. Also, if you're removing the existing tile and discovering mold or water damage behind the drywall, repair of the substrate becomes part of the scope, which may trigger a permit. Assuming the substrate is sound, you can tile and vanity-swap freely. Cost is typically $3,000–$8,000 (materials and labor), with zero permit fees. No inspections are required. Timeline is 5–10 business days. One Boise-specific note: the city does not actively enforce cosmetic-work thresholds through inspection, but if a future buyer or lender discovers unpermitted plumbing work (even minor drain relocation) during a transaction, disclosure is required, so it's worth documenting what was actually moved in writing before you sell.

No permit required | Surface-only work | Same fixture locations | $3,000–$8,000 total | Zero permit fees

Scenario B

Tub-to-shower conversion with new drain, separate vent line — mid-town Boise home, 60 sq ft bathroom, pre-1980 construction

You're removing the existing tub, installing a new shower base at a slightly different location (requiring a new drain line and trap), adding a new vent tee to serve the shower drain, and upgrading the shower waterproofing to cement board and membrane per IRC R702.4.2. You're also adding a new exhaust fan (larger CFM) because the existing fan was undersized. This scope includes plumbing relocation, waterproofing assembly change, and electrical work — all trigger permit requirements. The city's Building Division will require a permit application, floor plan showing new drain routing and vent location, electrical plan for the new exhaust-fan circuit (20-amp GFCI if on its own circuit, or integrated into bathroom AFCI if shared), and manufacturer specifications for the waterproofing system. Plan-review typically takes 3–5 business days in Boise; the city often requests clarification on trap-arm length (must be under 6 feet) and vent-tee size (must match drain size). Once approved, rough plumbing and rough electrical inspections must be passed before drywall, and final inspection must confirm the waterproofing membrane is properly sealed and the exhaust duct terminates to exterior. Because your home is pre-1980, you must provide an EPA lead-paint disclosure to any contractor before work begins and keep proof on file — the city will ask for it at permit application. Permit fees are $250–$400 depending on valuation; inspection fees are $150–$250. Total cost (permit + labor + materials) is typically $8,000–$15,000. Timeline is 4–6 weeks. One Boise detail: the city's frost depth (24–42 inches) doesn't affect interior plumbing, but if your shower drain connects to a sump pump or ejector pump in a crawlspace, the vent line termination must be shown on the plan and must be above the frost line if running exterior — inspectors will flag this.

Scenario C

Full gut-and-reframe, new toilet and vanity locations, dual sinks, heated floor mat — north Boise two-story home, 80 sq ft primary bath, 2020 construction

You're gutting the bathroom to the studs, moving the toilet to a new wall (requiring a full drain-line reroute and new vent), moving the vanity 3 feet to create a dual-sink layout, installing a new full-tile shower with waterproofing, adding a heated floor mat on a dedicated 15-amp circuit, upgrading the exhaust fan to 100 CFM with new ductwork through the roof, and replacing drywall. This is a full structural and mechanical remodel — permits are absolutely required. The city requires separate plans for plumbing, electrical, and framing (if load-bearing walls are touched); a full-scope application typically includes a 1-page floor plan showing fixture locations, drain/vent routing, and outlet locations, plus electrical single-line diagram, plus framing notes if any walls are removed. Boise's 2020 IBC adoption means the waterproofing plan must specify cement board plus two-layer membrane with details showing the transition from tub rim to wall and floor-to-wall junctures — generic "tile and mortar" will be rejected in plan review. The heated floor mat must be detailed on the electrical plan as a separate 15-amp circuit with GFCI protection (per NEC 426.27). The dual-sink vanity must be served by separate supply lines (or a splitter tee shown on the plan) and a single drain that meets trap-arm length requirements (the combined drain arm from both sinks to the main vent cannot exceed 6 feet). New roof penetration for the exhaust duct will trigger a structural review to confirm roof sheathing is not compromised; this often adds 1 week to plan review. Permit fees are $500–$800; inspection fees are $400–$600 (multiple inspections: rough plumbing, rough electrical, framing, rough drywall, final). Total project cost is $25,000–$50,000. Timeline is 6–8 weeks (2 weeks plan review, 3–4 weeks construction, 1–2 weeks final inspections and closeout). Boise-specific gotcha: if you're removing a wall and the bathroom is over 25% of the second-floor area, the city may flag this as a "substantial alteration" requiring energy-code compliance review (better insulation, HVAC balancing), which adds 1–2 weeks. Also, new construction in 2020 means your home is post-lead-paint era, so no EPA disclosure is needed.

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Boise City's 2020 IBC adoption and how it affects your bathroom remodel

Boise City adopted the 2020 Idaho Building Code (IBC 2020, based on 2018 IBC) effective January 1, 2021. This adoption puts the city one full code cycle ahead of some surrounding Idaho jurisdictions (including unincorporated Ada County, which still uses the 2015 IBC for some provisions). The practical effect is that Boise bathrooms must meet stricter exhaust-ventilation standards, waterproofing requirements, and GFCI/AFCI electrical rules than homes in adjacent unincorporated areas. For example, the 2020 code explicitly requires AFCI protection on all bathroom circuits (not just wet-area circuits), which the 2015 code does not; if you live on the Boise city limits and your neighbor three blocks away is in unincorporated Ada County, their bathroom remodel may not require AFCI, but yours does. The city published a summary of code changes on its permit portal, highlighting the AFCI requirement, new exhaust-duct rules (no attic termination), and waterproofing-assembly specifics. Understanding this difference is important if you're comparing your project to an older remodel in a neighboring jurisdiction.

The 2020 code adoption also affects how Boise's Building Division interprets borderline cases. For example, if you're replacing an existing bathroom fan with the same model (no upsizing, no duct change), the 2015 code might allow you to keep the old ductwork even if it's undersized. But under 2020 code, Boise inspectors now measure the ductwork during rough electrical and will reject it if the CFM rating of the new fan exceeds what the duct can handle — you must upgrade the duct to match the new fan. This is a common surprise for homeowners pulling permits in Boise who assumed they could just swap the fan in place. The city's Building Division has noted this in several internal memos and now includes it in the pre-permit checklist: "If upgrading exhaust-fan CFM, verify existing ductwork supports new CFM or plan for new duct."

Another 2020-code effect is the waterproofing specification for tub-to-shower conversions. Under the older code, some inspectors would accept tile on mortar or even vinyl backer board with caulk. The 2020 code (per IRC R702.4.2) explicitly requires a water-resistant backing material (cement board, fiber-cement board, or water-resistant gypsum) plus a water-resistive membrane (IRC R702.7 liquid-applied or sheet-applied membrane, minimum 0.006 inches thick). Boise's Building Division now rejects any tub-to-shower remodel that does not show the specific membrane product and its R-value on the plan. Generic "waterproofing per code" will result in a plan-review rejection. You must provide the manufacturer's installation guide and confirmation that the membrane meets ASTM D779 or similar spec. This adds 3–5 days to plan review if the city needs to verify the product.

Navigating Boise's online permit portal and typical plan-review timelines

Boise City's Building Division operates a digital permit portal that allows most residential bathroom remodels to be filed and reviewed online without visiting City Hall in person. The portal is accessible through the city's website under "Permits & Inspections"; you'll need to create an account and upload a PDF floor plan, electrical diagram (if applicable), and any product spec sheets. For a typical full bathroom remodel, the portal workflow is: (1) Create account and start application, (2) Complete the pre-screening questionnaire (which asks if you're moving fixtures, adding circuits, etc.), (3) Upload plans and fees ($150–$250 for plan review, plus inspection fees), (4) Receive a permit number and plan-review comments within 2–5 business days, (5) Revise plans if needed and resubmit, (6) Receive approval and begin work, (7) Request inspections through the portal as you reach inspection points (rough plumbing, rough electrical, final). Inspections are typically available within 2–3 business days of request and can be scheduled online — you no longer need to call the building department or wait in a queue. This is a significant advantage over many Idaho jurisdictions that still require in-person permit filing.

Plan-review turnaround in Boise is typically 2–5 business days for a clean, complete plan. However, if your plan is missing information (for example, no exhaust-fan CFM noted, no duct termination shown, or no waterproofing details for a shower conversion), the city will issue a "Corrections Required" notice, which resets the clock. Once you resubmit, plan review restarts and typically takes an additional 2–3 business days. The most common rejections are: (1) trap-arm length exceeds 6 feet without a vent tee shown, (2) exhaust-fan CFM not specified or undersized for bathroom square footage, (3) GFCI/AFCI requirements not shown on electrical plan, (4) waterproofing system not named/detailed on shower conversion, (5) duct termination not shown (roof or wall cap location not specified). If you work with a contractor familiar with Boise's code, they will often prepare the plan with these details pre-filled, reducing rejections. If you're a homeowner self-permitting, the city's Building Division website includes a "Bathroom Remodeling Checklist" (updated 2021) that walks through the required plan elements — using this checklist reduces rejections by about 70%.

Inspection scheduling is where the online portal shines. Once your permit is approved, you can log into the portal and request an inspection for a specific date and time (typically same or next business day). The city has a pool of inspectors and aims to accommodate requests within 24–48 hours. For a full bathroom remodel, expect to schedule 3–4 inspections: rough plumbing (before drywall), rough electrical (before drywall), framing/drywall (if walls moved), and final (after all finishes). Each inspection takes 20–40 minutes and results in either a pass or a list of corrections. If you fail an inspection, you have 14 days to correct the issue and request a re-inspection; the re-inspection is free if the correction is straightforward (e.g., missing GFCI outlet) but may require a new inspection fee if the correction involves structural work.

City of Boise Building Department
1234 W Park Blvd, Boise, ID 83702 (Main city offices; confirm permit office address on website)
Phone: (208) 608-7600 (general); Building Division line available during business hours | https://apps.boisecityhalls.org/eGov (Boise eGov permit portal — verify URL on city website for current access)
Monday–Friday, 8:00 AM–5:00 PM (closed city holidays); online portal available 24/7

Common questions

Do I need a permit to replace a toilet or faucet in my bathroom?

No. Replacing a toilet on the same closet flange or a faucet on the same supply line is cosmetic work and does not require a permit. However, if the existing flange is damaged and requires relocation, or if you're moving the toilet to a new location, a permit is required. Similarly, if you're upgrading to a bidet or installing a heated toilet seat on a new circuit, the electrical work requires a permit. When in doubt, ask the city's Building Division — a 5-minute call can clarify whether your specific project needs permitting.

What is the most common reason Boise bathrooms fail inspection?

Exhaust-fan ductwork. The city requires the CFM rating on the plan, and inspectors measure the duct diameter and confirm it matches the fan specs. Oversized or undersized ducts, dampers (which the 2020 code prohibits), or failure to show the exterior termination location consistently result in failed rough-electrical inspections. A quick fix is usually to upgrade the duct or downsize the fan to match existing ductwork, but it delays the project by 1–2 weeks.

Is a permit required to add a second sink in my bathroom?

Yes, if you're installing a new vanity with a second sink in a different location than the existing one, you're relocating plumbing fixtures, which requires a permit. You'll need to show the drain and supply routing on the floor plan and confirm the drain arm length does not exceed 6 feet to the main vent. If you're replacing an existing dual-sink vanity with a new one in the same footprint (same drain and supply locations), no permit is required.

Can I install a heated floor mat or towel rack in my bathroom without a permit?

If the mat or rack is plug-connected to an existing outlet, no permit is typically required (though you should confirm the outlet has available circuit capacity — check with an electrician). If the mat is hard-wired to a new dedicated circuit, a permit is required because you're adding a new electrical circuit. Heated towel racks are often hard-wired; you'll need to show the circuit details on an electrical plan and confirm GFCI protection if the rack is in a wet location (near the tub or shower).

What is the difference between GFCI and AFCI protection in a bathroom?

GFCI (Ground-Fault Circuit Interrupter) detects electrical imbalances caused by water contact and shuts off power immediately — it's required on all outlets in wet areas (within 6 feet of a sink or tub) and on all bathroom circuits under 2020 code. AFCI (Arc-Fault Circuit Interrupter) detects dangerous electrical arcs (sparks) and is required on all circuits supplying bathroom outlets under the 2020 IBC; this includes light circuits, not just outlet circuits. Boise's 2020 code adoption means your bathroom lights, outlets, and exhaust fan must all be on GFCI or AFCI-protected circuits — this is stricter than some older code versions. If you're adding a new circuit or remodeling, plan to install AFCI breakers at the main panel or GFCI-AFCI combo outlets at each location.

How long does a typical full bathroom remodel permit take from start to finish in Boise?

Plan on 6–8 weeks: 2 weeks for plan review and approval, 3–4 weeks for construction (plumbing rough-in, electrical rough-in, framing, drywall, finishes), and 1–2 weeks for inspections and final sign-off. If your plan requires corrections during review or you encounter unexpected conditions during construction (e.g., mold in the walls, existing plumbing not where it should be), add 2–4 weeks. Rush plan review is not available in Boise, but if you submit a clean, complete plan, you'll typically get approval in 3–5 business days.

Do I need to provide a lead-paint disclosure if my home was built before 1978?

Yes. Federal law (not just Boise code) requires you to give any contractor an EPA lead-paint disclosure form before they begin work on a pre-1978 home. You must retain proof that the contractor received and signed the form. The city's Building Division may ask to see proof of disclosure at the permit-application stage or during inspections. Failure to provide the disclosure can result in federal fines up to $16,000. The EPA form is free and available on the EPA website; Boise's building department does not provide one but will accept the standard EPA form.

Can I self-permit a bathroom remodel in Boise if I'm the homeowner?

Yes. Idaho law allows owner-builders to obtain permits for owner-occupied residential projects. However, you must perform the work yourself or hire a licensed contractor (electricians and plumbers must be licensed in Idaho; general contractors do not require licensure for owner-builder projects, but the licensed trades do). If you hire a contractor, the contractor's license number must be on the permit. If you're doing the work yourself, you'll need to have a general understanding of code to submit a compliant plan and pass inspections. Many homeowners find working with a contractor (who knows the current code and the city's expectations) easier and faster than self-permitting, even accounting for contractor fees.

What happens if I sell my home before my bathroom remodel permit is finalized?

Idaho real-estate law requires sellers to disclose all unpermitted work to buyers. If your bathroom remodel is in progress or incomplete when you list, you must disclose this to potential buyers in writing before they make an offer. Buyers often request that the work be completed and permitted before closing, or they reduce their offer to account for the risk and cost of completing the work themselves. If the work is fully completed but not permitted, buyers will typically demand a retroactive permit and final inspection before closing, which can delay the sale by 2–4 weeks and may cost $300–$800 in retroactive fees and inspection costs.

Are there any energy-code or HVAC requirements for a bathroom remodel in Boise?

Boise's 2020 IBC adoption includes energy code requirements (per IECC 2018), but these typically apply to new construction or substantial alterations. A bathroom remodel (even a full gut) is usually not considered a "substantial alteration" unless you're removing load-bearing walls or demolishing more than 25% of the bathroom's ceiling/walls. If your remodel crosses the substantial-alteration threshold, you may be required to upgrade insulation in the cavity, ensure proper HVAC balance to the bathroom (if ducted return is present), or add a dedicated fresh-air intake if the bathroom exhaust is very large. Confirm with the city's Building Division at the pre-permit stage if you're concerned about energy-code applicability — a quick call can clarify whether your scope triggers these requirements.

Disclaimer: This guide is based on research conducted in May 2026 using publicly available sources. Always verify current bathroom remodel (full) permit requirements with the City of Boise City Building Department before starting your project.

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