Tennessee Commercial Construction Permit Cost Estimator

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.calc-container { max-width: 640px; margin: 2rem 0; padding: 1.5rem; background: #fff; border: 1px solid #ddd; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); font-family: system-ui, -apple-system, sans-serif; } .calc-container h3 { font-family: Georgia, serif; font-size: 1.15rem; color: #1a1a1a; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; } .calc-row label { min-width: 160px; font-size: 0.9rem; color: #333; font-weight: 500; } .calc-row input[type="number"], .calc-row select { flex: 1; min-width: 120px; max-width: 200px; padding: 0.5rem 0.6rem; border: 1px solid #ccc; border-radius: 4px; font-size: 0.9rem; font-family: system-ui, sans-serif; color: #1a1a1a; background: #fafaf8; } .calc-row input:focus, .calc-row select:focus { outline: none; border-color: var(--ac, #3d5a80); box-shadow: 0 0 0 2px rgba(26,74,138,0.12); } .calc-row .unit { font-size: 0.82rem; color: #888; min-width: 30px; } .calc-btn { display: inline-block; margin-top: 0.5rem; padding: 0.55rem 1.5rem; background: var(--ac, #3d5a80); color: #fff; border: none; border-radius: 4px; font-size: 0.9rem; font-weight: 600; cursor: pointer; font-family: system-ui, sans-serif; } .calc-btn:hover { opacity: 0.9; } .calc-result { margin-top: 1.25rem; padding: 1rem 1.25rem; background: #f0f6fc; border-left: 3px solid var(--ac, #3d5a80); border-radius: 0 6px 6px 0; display: none; } .calc-result.visible { display: block; } .calc-result-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: #666; margin-bottom: 0.25rem; } .calc-result-value { font-size: 1.6rem; font-weight: 700; color: var(--ac, #3d5a80); } .calc-result-detail { font-size: 0.85rem; color: #555; margin-top: 0.5rem; line-height: 1.5; } .calc-note { margin-top: 1rem; font-size: 0.8rem; color: #888; font-style: italic; } .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 0.75rem; } .calc-grid-item { padding: 0.6rem 0.8rem; background: #f8f9fa; border-radius: 4px; border: 1px solid #eee; } .calc-grid-item .label { font-size: 0.75rem; color: #888; text-transform: uppercase; letter-spacing: 0.04em; } .calc-grid-item .value { font-size: 1.1rem; font-weight: 600; color: #1a1a1a; } @media (max-width: 720px) { .calc-row { flex-direction: column; align-items: flex-start; gap: 0.3rem; } .calc-row label { min-width: auto; } .calc-row input[type="number"], .calc-row select { max-width: 100%; width: 100%; } .calc-grid { grid-template-columns: 1fr; } } .calc-chart { margin: 1rem 0; text-align: center; } .calc-chart svg { max-width: 100%; height: auto; } .calc-chart-legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem 1.2rem; margin-top: 0.6rem; font-size: 0.8rem; color: #555; } .calc-chart-legend span { display: inline-flex; align-items: center; gap: 0.3rem; } .calc-chart-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; font-style: normal; } .calc-related { max-width: 640px; margin: 2rem 0 1rem; padding: 1.25rem 1.5rem; background: #f8f9fa; border: 1px solid #e8e8e8; border-radius: 8px; } .calc-related h3 { font-family: Georgia, serif; font-size: 1rem; color: #1a1a1a; margin: 0 0 0.75rem; padding-bottom: 0.4rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-related-list { list-style: none; padding: 0; margin: 0 0 0.75rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem 1.5rem; } .calc-related-list li a { font-size: 0.88rem; color: var(--ac, #3d5a80); text-decoration: none; } .calc-related-list li a:hover { text-decoration: underline; } .calc-browse-all { margin: 0.5rem 0 0; font-size: 0.9rem; font-weight: 600; } .calc-browse-all a { color: var(--ac, #3d5a80); text-decoration: none; } .calc-browse-all a:hover { text-decoration: underline; } @media (max-width: 720px) { .calc-related-list { grid-template-columns: 1fr; } }

Tennessee Commercial Construction Permit Cost Estimator

Estimate commercial building permit fees in Tennessee based on construction valuation, occupancy classification, and local jurisdiction multipliers. Results are estimates only — contact your local building department for exact fees.

Total Construction Valuation ($)

Occupancy / Use Type

A – Assembly (restaurants, theaters, churches) B – Business (offices, banks) E – Educational (schools, daycare) F – Factory / Industrial H – High Hazard I – Institutional (hospitals, nursing homes) M – Mercantile (retail, stores) S – Storage (warehouses) U – Utility / Miscellaneous

Jurisdiction / City

Unincorporated / Small County Nashville / Davidson County Memphis / Shelby County Knoxville / Knox County Chattanooga / Hamilton County Clarksville / Montgomery County Murfreesboro / Rutherford County Franklin / Williamson County Jackson / Madison County Other Incorporated City

Gross Floor Area (sq ft)

Number of Stories

Fire Sprinkler System?

No Yes

Electrical Permit Required?

Yes No

Plumbing Permit Required?

Yes No

Mechanical / HVAC Permit Required?

Yes No

Calculate Permit Cost

Your estimated permit cost will appear here.

function tenCalc() { var resultDiv = document.getElementById("ten-result");

// --- Inputs --- var valuation = parseFloat(document.getElementById("ten-valuation").value); var occMult = parseFloat(document.getElementById("ten-occupancy").value); var jurisMult = parseFloat(document.getElementById("ten-jurisdiction").value); var sqft = parseFloat(document.getElementById("ten-sqft").value); var stories = parseInt(document.getElementById("ten-stories").value); var sprinkler = parseInt(document.getElementById("ten-sprinkler").value); var electrical = parseInt(document.getElementById("ten-electrical").value); var plumbing = parseInt(document.getElementById("ten-plumbing").value); var mechanical = parseInt(document.getElementById("ten-mechanical").value);

// --- Validation --- if (isNaN(valuation) || valuation Please enter a valid construction valuation greater than $0."; return; } if (isNaN(sqft) || sqft Please enter a valid gross floor area greater than 0 sq ft."; return; } if (isNaN(stories) || stories Number of stories must be at least 1."; return; }

// --------------------------------------------------------------- // BUILDING PERMIT FEE (Tennessee ICC / IBC sliding scale) // Base fee schedule (per $1,000 of valuation): // $1 – $25,000 : $25 flat minimum // $25,001 – $50,000 : $25 + $5.00 per $1,000 over $25,000 // $50,001 – $100,000 : $150 + $4.00 per $1,000 over $50,000 // $100,001 – $500,000 : $350 + $3.00 per $1,000 over $100,000 // $500,001 – $1M : $1,550 + $2.50 per $1,000 over $500,000 // Over $1,000,000 : $2,800 + $2.00 per $1,000 over $1,000,000 // --------------------------------------------------------------- var baseBuildingFee = 0; if (valuation 1) { buildingFee = buildingFee * (1 + (stories - 1) * 0.03); }

// --------------------------------------------------------------- // PLAN REVIEW FEE // Tennessee standard: 65% of the building permit fee // --------------------------------------------------------------- var planReviewFee = buildingFee * 0.65;

// --------------------------------------------------------------- // ELECTRICAL PERMIT FEE // Base: $75 + $0.004 per sq ft, min $75 // --------------------------------------------------------------- var electricalFee = 0; if (electrical === 1) { electricalFee = Math.max(75, 75 + sqft * 0.004); electricalFee = electricalFee * jurisMult; }

// --------------------------------------------------------------- // PLUMBING PERMIT FEE // Base: $60 + $0.003 per sq ft, min $60 // --------------------------------------------------------------- var plumbingFee = 0; if (plumbing === 1) { plumbingFee = Math.max(60, 60 + sqft * 0.003); plumbingFee = plumbingFee * jurisMult; }

// --------------------------------------------------------------- // MECHANICAL / HVAC PERMIT FEE // Base: $65 + $0.0035 per sq ft, min $65 // --------------------------------------------------------------- var mechanicalFee = 0; if (mechanical === 1) { mechanicalFee = Math.max(65, 65 + sqft * 0.0035); mechanicalFee = mechanicalFee * jurisMult; }

// --------------------------------------------------------------- // FIRE SPRINKLER PERMIT FEE // $50 + $0.12 per sprinkler head (estimated 1 head per 130 sq ft) // --------------------------------------------------------------- var sprinklerFee = 0; if (sprinkler === 1) { var heads = Math.ceil(sqft / 130); sprinklerFee = 50 + heads * 0.12; sprinklerFee = sprinklerFee * jurisMult; }

// --------------------------------------------------------------- // STATE SURCHARGE (Tennessee Department of Commerce & Insurance) // 1.5% of the building permit fee, minimum $5 // --------------------------------------------------------------- var stateSurcharge = Math.max(5, buildingFee * 0.015);

// --------------------------------------------------------------- // TECHNOLOGY / ADMIN FEE // Flat 2% of building permit fee (common in TN municipalities) // --------------------------------------------------------------- var adminFee = buildingFee * 0.02;

// --------------------------------------------------------------- // TOTAL // --------------------------------------------------------------- var total = buildingFee + planReviewFee + electricalFee + plumbingFee + mechanicalFee + sprinklerFee + stateSurcharge + adminFee;

// --------------------------------------------------------------- // Format currency // --------------------------------------------------------------- function fmt(n) { return "$" + n.toFixed(2).replace(/\B(?=(\d{3})+(?!\d))/g, ","); }

// --------------------------------------------------------------- // Output // --------------------------------------------------------------- resultDiv.innerHTML = "### Estimated Permit Cost Breakdown " + "" + "Building Permit Fee" + fmt(buildingFee) + "" + "Plan Review Fee (65% of building fee)" + fmt(planReviewFee) + "" + (electrical ? "Electrical Permit" + fmt(electricalFee) + "" : "") + (plumbing ? "Plumbing Permit" + fmt(plumbingFee) + "" : "") + (mechanical ? "Mechanical / HVAC Permit" + fmt(mechanicalFee) + "" : "") + (sprinkler ? "Fire Sprinkler Permit" + fmt(sprinklerFee) + "" : "") + "State Surcharge (1.5%)" + fmt(stateSurcharge) + "" + "Technology / Admin Fee (2%)" + fmt(adminFee) + "" + "TOTAL ESTIMATED PERMIT COST" + fmt(total) + "" + "" + "Based on a " + fmt(valuation) + " project valuation, " + sqft.toLocaleString() + " sq ft, " + stories + " stor" + (stories === 1 ? "y" : "ies") + ". Jurisdiction multiplier: " + jurisMult.toFixed(2) + "x. Occupancy multiplier: " + occMult.toFixed(2) + "x.

"; }

#### Formulas Used

Building Permit Fee (sliding scale on valuation):

Adjusted Building Fee = Base Fee × Occupancy Multiplier × Jurisdiction Multiplier × [1 + (Stories − 1) × 0.03]

Plan Review Fee = Adjusted Building Fee × 0.65

Electrical Fee = max($75, $75 + Sq Ft × $0.004) × Jurisdiction Multiplier

Plumbing Fee = max($60, $60 + Sq Ft × $0.003) × Jurisdiction Multiplier

Mechanical Fee = max($65, $65 + Sq Ft × $0.0035) × Jurisdiction Multiplier

Sprinkler Fee = $50 + ⌈Sq Ft ÷ 130⌉ × $0.12 (1 head per 130 sq ft)

State Surcharge = max($5, Adjusted Building Fee × 0.015)

Admin / Technology Fee = Adjusted Building Fee × 0.02

Total = Sum of all applicable fees above

#### Assumptions & References

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References

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