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Chesterfield County Addition Permit Cost (2026)

Residential addition building permit fees in Chesterfield County, Virginia, calculated under the Chesterfield County Department of Building Inspection FY2025-2026 fee schedule (effective July 1, 2025 through June 30, 2026). Chesterfield uses a pure flat-fee structure for all general residential additions: $399 building permit fee, plus the $50 Environmental Engineering site inspection fee for footprint-changing projects, plus the 2% Virginia state levy applied to the $399 building permit fee only (not the EE fee). All-in cost is $456.98 regardless of declared construction value. A $25,000 bump-out and a $250,000 second-story addition pay the same $456.98.

Building Permit
$399 flat (any value)
Site Inspection Fee
$50 Environmental Engineering
Plan Review
Bundled (no separate fee)
Virginia 2% State Levy
2% of $399 building permit
Any Addition All-In
$456.98 flat
Fee Status
Verified FY2025-2026
What This Guide Covers - and What It Does Not

This guide covers: Chesterfield County general residential addition building permit fees under the Chesterfield County Department of Building Inspection FY2025-2026 residential fee schedule (effective July 1, 2025). Coverage includes the $399 flat building permit fee for residential additions, the $50 Environmental Engineering site inspection fee applied to footprint-changing projects, and the 2% Virginia state levy applied to the $399 building permit fee only. The combined all-in cost is $456.98.

This guide does NOT cover: Trade permits (electrical, plumbing, mechanical) - these are separate filings under Chesterfield's trade fee schedules and add roughly $100-$400 to the addition permit total depending on installer scope. New single-family detached construction - new SFD uses a separate flat $684 building permit fee (see /virginia/chesterfield-county/). Multi-family and townhouse construction, which use separate fee schedules not modeled here. Zoning approvals (setback verification, lot coverage), HOA architectural approvals. VSMP / stormwater management fees if the addition triggers them.

When a Chesterfield addition permit is required: The Department of Building Inspection requires a building permit for any addition that adds enclosed habitable space, conditioned space, or modifies the structural shell of an existing 1-2 family dwelling. Sunrooms, enclosed porches, screened porches converted to four-season rooms, dormers that add habitable space, and second-story additions all qualify. Always verify with the Department of Building Inspection before assuming exemption.

Why Chesterfield uses flat fees: Chesterfield's residential fee schedule was simplified into a flat-tier structure to reduce intake friction and eliminate declared-value disputes. The same logic applies across the entire schedule - decks are $114 flat, additions are $399 flat, new SFD is $684 flat. The trade-off is that a small $5,000 addition pays the same $456.98 as a large $200,000 second-story addition. Chesterfield is structurally cheapest for high-value additions and most expensive for very small ones compared to neighboring jurisdictions.

Key Takeaways
  • Chesterfield uses a pure flat-fee structure for residential additions: $399 building permit + $50 Environmental Engineering site inspection + 2% Virginia state levy on the $399 = $456.98 all-in. The fee is the same at any declared construction value. There is no per-value scaling, no value caps, no plan review surcharge. This is the simplest residential addition fee structure in the verified Virginia cluster.
  • The $50 Environmental Engineering (EE) fee is collected at application for any project that changes the building footprint. Additions almost always trigger this fee because they expand the dwelling footprint. The EE fee covers the County's site inspection for setback compliance, drainage impact, and erosion control during the addition build. The 2% Virginia state levy is applied only to the $399 building permit fee per County practice - the EE fee is not part of the levy base.
  • Chesterfield's flat $399 makes it the cheapest verified Virginia jurisdiction for additions above ~$50,000 declared, after Henrico hits its cap. At $50,000 declared: Chesterfield $456.98, Henrico $377.40, Richmond $361.45, Fairfax $2,295.00. At $100,000 declared: Chesterfield $456.98, Henrico $675.00 (near cap), Richmond $657.79, Fairfax $4,590.00. At $250,000 declared: Chesterfield $456.98, Henrico $693.60 (capped), Richmond $1,567.41, Fairfax $11,475.00.
  • Trade permits (electrical, plumbing, mechanical) are NOT included in the $456.98 addition permit. Most Chesterfield additions trigger all three trade categories: electrical for new outlets/lighting/circuits, plumbing if the addition includes a bathroom or kitchen extension, mechanical for the duct extensions or new zone equipment. Trade permits add roughly $100-$400 to the addition permit total depending on installer scope. Licensed trade contractors pull these permits separately at intake under Chesterfield's trade fee structures.
  • Plan review is bundled into the $399 flat building permit fee. There is no separate plan review surcharge - unlike Fairfax (which adds 50% on top) or Virginia Beach (which charges a flat $100 plan review). Plan review work still happens - the Department of Building Inspection performs structural and code review before issuing the permit - but it is folded into the single flat fee. Bundled plan review is one structural reason Chesterfield is cheap for medium-to-large additions.
  • The $399 addition fee covers "general residential additions." For very large projects (above 5,000 sq ft work area or with structural complexity beyond standard framing), the Department of Building Inspection may require additional review. The published schedule does not document a separate fee for those cases - confirm scope with the Department before assuming the flat $399 applies. New SFD construction uses a separate $684 flat fee and is NOT covered by this guide.
  • Chesterfield's flat-fee structure is most beneficial for higher-value additions and least beneficial for very small ones. A $5,000 bump-out costs $456.98 in Chesterfield versus $102.00 in Henrico (at the $5,000 threshold), $93.43 in Richmond ($63 + $6.07 x 3 + 2% levy), or roughly $402.90 in Loudoun (bundled flat under 1,000 sq ft, July 2022 schedule). The Chesterfield premium on small additions reflects the structural cost of the County's flat-tier model.
  • The Chesterfield FY2025-2026 fee schedule was verified via pdfplumber against the chesterfield.gov residential fee schedule effective July 1, 2025. The schedule runs through June 30, 2026. Always confirm current rates with the Department of Building Inspection at chesterfield.gov/4030/Residential-Permits-and-Inspections-Proc before filing.
Calculate Your Addition Permit All Chesterfield Permit Fees

Chesterfield Addition Permit Fee Components

Every Chesterfield County residential addition permit is built from three components: the $399 flat building permit fee, the $50 Environmental Engineering site inspection fee for footprint-changing projects, and the 2% Virginia state levy applied to the $399 building permit fee (not the EE fee).

Component Amount (any declared value) How It Is Calculated
Flat building permit fee $399.00 Flat fee applied to every general residential addition regardless of declared construction value. No scaling, no caps. Plan review bundled.
Environmental Engineering site inspection $50.00 Flat $50 for any project that changes the building footprint. Additions almost always trigger this fee. Not part of the state levy base.
Building permit subtotal (levy base) $399.00 The 2% Virginia state levy is applied to the $399 building permit fee only, per County practice. The EE fee is not part of the levy base.
2% Virginia state levy $7.98 2% of the $399 building permit fee. Statutory under Code of Virginia §36-139 / USBC Section 107.2.
All-in addition total (any declared value) $456.98 $399.00 + $50.00 + $7.98. Trade permits and zoning approvals are excluded.

Source: Chesterfield County Department of Building Inspection FY2025-2026 residential fee schedule (effective July 1, 2025 through June 30, 2026), retrieved via pdfplumber from chesterfield.gov on April 16, 2026. Verified by Munib Ur Rehman.

Worked Examples - Real Addition Projects in Chesterfield County

Every Chesterfield addition pays the same $456.98 all-in. The arithmetic does not depend on declared construction value. The examples below illustrate the math at different project scopes to show the flat structure in practice and to highlight where Chesterfield wins or loses versus value-based jurisdictions.

Example 1: $25,000 small bump-out (kitchen extension, ~150 sq ft)

A homeowner builds a 150 sq ft kitchen bump-out on a single-family dwelling, declared construction value $25,000.

  • Flat building permit fee: $399.00
  • Environmental Engineering site inspection: $50.00
  • 2% Virginia state levy on $399: $7.98
  • Total all-in addition building permit: $456.98

Trade permits (electrical for new outlets, plumbing if sink moves, mechanical for duct extension) add roughly $100-$300 to this total at intake under Chesterfield's separate trade fee structures.

Example 2: $50,000 sunroom (300 sq ft enclosed three-season room)

A homeowner adds a 300 sq ft enclosed sunroom on the rear of an existing dwelling, declared construction value $50,000.

  • Flat building permit fee: $399.00
  • Environmental Engineering site inspection: $50.00
  • 2% Virginia state levy on $399: $7.98
  • Total all-in addition building permit: $456.98

Same County fee as the $25,000 bump-out above. Chesterfield's flat structure means the entire $50,000 vs $25,000 declared-value difference does not affect the County permit cost at all.

Example 3: $100,000 family-room addition (500 sq ft heated)

A homeowner builds a 500 sq ft heated family-room addition on the side of a single-family dwelling, declared construction value $100,000.

  • Flat building permit fee: $399.00
  • Environmental Engineering site inspection: $50.00
  • 2% Virginia state levy on $399: $7.98
  • Total all-in addition building permit: $456.98

At this declared value Chesterfield's $456.98 is roughly 31% cheaper than Henrico's $675.00 (just under cap) and approximately 90% cheaper than Fairfax's $4,590.00 for the same project.

Example 4: $250,000 second-story addition (1,000 sq ft over existing garage and family room)

A homeowner adds a 1,000 sq ft second-story addition over an existing garage and family room, declared construction value $250,000.

  • Flat building permit fee: $399.00
  • Environmental Engineering site inspection: $50.00
  • 2% Virginia state levy on $399: $7.98
  • Total all-in addition building permit: $456.98

Note: a $250,000 second-story addition triggers structural review of the existing first-floor framing and footings. Chesterfield bundles all that into the same flat $399. Compare to Fairfax at $11,475.00 for the same declared value - Chesterfield saves approximately $11,018 on County permit cost. For very large projects above 5,000 sq ft work area, confirm scope with the Department of Building Inspection before assuming the flat $399 applies. Trade permits add another $200-$500 depending on bath, HVAC, and electrical scope.

Calculate Your Chesterfield Addition Permit

The PermitPrice fee calculator supports Chesterfield's flat-tier addition formula directly. Because the fee does not vary by declared value, the calculator returns the same $456.98 all-in for any addition project in Chesterfield. The calculator still itemizes the $399 building permit, $50 Environmental Engineering fee, and $7.98 state levy so you can see the breakdown.

Calculator coverage for Chesterfield additions: the flat $399 building permit + $50 Environmental Engineering site inspection + 2% Virginia state levy on the building permit. Trade permits, zoning fees, and new SFD construction (which uses a separate flat $684 building permit) are not modeled in the calculator and are quoted separately at intake.

Open the Permit Fee Calculator

Chesterfield Addition Permit Cost vs Other Verified Virginia Jurisdictions

Chesterfield's flat $456.98 makes it predictable but not always cheapest. Below the crossover point (roughly $50,000 declared value) Henrico and Richmond are cheaper because their value-based formulas start low. Above the crossover Chesterfield wins because the fee never grows. Fairfax is the most expensive in every column.

Jurisdiction Addition Formula $50,000 Addition All-In
Chesterfield County Flat $399 + $50 site + 2% levy $456.98
Henrico County $100 + $6/$1k over $5k, capped $680 $377.40
Richmond City $63 + $6.07/$1k over $2k + 2% levy $361.45
Fairfax County 3% of value + 50% plan review + 2% levy $2,295.00
Loudoun County ~$402.90 bundled (under 1,000 sq ft, July 2022) ~$402.90 (estimated)
Virginia Beach City $50 + $7/100 sq ft heated + $100 PR + 2% levy $196.70 (500 sq ft heated)

Comparison units differ: Chesterfield uses a flat-tier scheme; Henrico/Fairfax/Loudoun/Richmond use declared construction value; Virginia Beach uses sq ft. Trade permits are excluded from every row. The 500 sq ft heated addition assumed in the Virginia Beach row is the closest like-for-like proxy at the $50,000 declared value level. The Loudoun figure is an estimate from the July 2022 schedule and carries a source-age caveat.

Side-by-Side Math

For full breakdowns of how Chesterfield compares against neighboring jurisdictions on additions, decks, and pools, see the dedicated comparison pages.

Frequently Asked Questions

A Chesterfield County residential addition building permit costs $456.98 all-in regardless of declared construction value: $399 flat building permit + $50 Environmental Engineering site inspection + 2% Virginia state levy on the $399 building permit. A $5,000 bump-out and a $250,000 second-story addition pay the same $456.98. Trade permits (electrical, plumbing, mechanical) add roughly $100-$400 separately depending on installer scope.
Chesterfield's residential fee schedule was simplified into a flat-tier structure to reduce intake friction and eliminate declared-value disputes. The same logic applies across the entire schedule: decks $114 flat, additions $399 flat, new SFD $684 flat. The trade-off is that a small $5,000 addition pays the same as a large $200,000 second-story addition. Chesterfield is structurally cheapest for high-value additions and most expensive for very small ones. The flat structure also makes Chesterfield's fees the easiest to budget in advance because there is no math involved.
Yes. Chesterfield bundles plan review into the $399 flat building permit fee. There is no separate plan review fee line item - unlike Fairfax (which adds 50% on top for plan review) or Virginia Beach (which charges a flat $100 plan review). Plan review work itself still happens - the Department of Building Inspection performs structural and code review before issuing the permit - but the cost is folded into the single flat $399 fee.
The $50 Environmental Engineering (EE) fee is a flat charge Chesterfield collects at application for any project that changes the building footprint. Additions almost always trigger this fee because they expand the dwelling footprint. The EE fee covers the County's site inspection for setback compliance, drainage impact, and erosion control during the addition build. It is a separate line item from the $399 building permit. The 2% Virginia state levy is applied only to the $399 building permit fee per County practice - the EE fee is not part of the levy base.
No. Trade permits are filed separately under Chesterfield's trade fee schedules and are not included in the $456.98 figure on this page. Most additions trigger all three trade categories: electrical for new outlets/lighting/circuits, plumbing if the addition includes a bathroom or kitchen extension, mechanical for the duct extensions or new zone equipment. Trade permits add roughly $100-$400 to the addition permit total depending on installer scope, fixture count, and equipment count. Licensed trade contractors pull these permits separately at intake.
Yes for footprint-changing additions. Chesterfield Planning routes any addition that extends the building footprint through setback verification, lot coverage, and applicable overlay districts before building plan review can issue the permit. Setback questions usually clear in 1-2 weeks. Zoning approvals are a separate process from the $399 addition building permit fee documented on this page - they are not included in the $456.98 figure. Verify zoning status before the building permit application.
Yes. Chesterfield's flat $456.98 is more expensive than value-based jurisdictions for very small additions. A $5,000 addition costs $456.98 in Chesterfield versus $102.00 in Henrico (Henrico's $100 base + 2% levy at the $5,000 threshold) or $93.43 in Richmond ($63 + $6.07 x 3 + 2% levy). The crossover point where Chesterfield becomes cheaper than Henrico is around $50,000 declared. Above $50,000 Chesterfield's flat fee structure wins. Below it Henrico and Richmond win. Fairfax is more expensive than Chesterfield at every value.
No. The $456.98 Chesterfield addition permit fee is the County building permit cost only - the cost to apply, get plan review, and have inspections performed. It does not include any contractor work. A 300 sq ft sunroom installed in the Chesterfield market typically runs $35,000-$70,000 for the contractor scope (foundation, framing, windows, roofing, finishes, labor). A 500 sq ft heated family-room addition runs $70,000-$130,000+. The permit fee is a meaningful but small line item in your overall addition project budget; the bulk is contractor scope. PermitPrice tracks only the County permit fee component.

Sources

Official .gov Sources - Verified May 2026
  • Chesterfield County Department of Building Inspection - Residential Fee Schedule FY2025-2026 (effective July 1, 2025 through June 30, 2026) - Primary source for the $399 flat residential addition building permit fee, the $50 Environmental Engineering site inspection fee for footprint-changing projects, and County practice of applying the 2% state levy to the $399 building permit only. Retrieved via pdfplumber on April 16, 2026 Verified FY2025-2026
  • Chesterfield County Government Portal Accessed May 12, 2026 - Chesterfield County government website - Index page linking the Department of Building Inspection, online portal for permit applications, and inspection scheduling
  • Code of Virginia Section 36-139 - USBC State Levy Authority Current - Virginia General Assembly - Authorizing statute for the statewide 2% building permit surcharge applied across all Virginia jurisdictions, including Chesterfield County addition permits
Next Step

Calculate your specific Chesterfield addition permit cost, see all Chesterfield fee categories, or compare against neighboring jurisdictions.

Chesterfield Deck Permit Guide → Chesterfield Pool Permit Guide → Chesterfield Shed Permit Guide → Virginia Addition Permit Guide →
Always verify current addition permit fees directly with the Chesterfield County Department of Building Inspection before budgeting or filing. The Chesterfield County FY2025-2026 residential fee schedule (effective July 1, 2025 through June 30, 2026) is the most recent published schedule as of May 12, 2026. Visit chesterfield.gov/4030/Residential-Permits-and-Inspections-Proc to confirm addition permit rates, Environmental Engineering fee application, footprint-change triggers, and zoning approval status before submitting an application.
Disclaimer: All fee information on PermitPrice is for informational purposes only and is not an official permit quotation. Actual permit fees are determined by the Chesterfield County Department of Building Inspection at the time of application. Trade permit costs (electrical, plumbing, mechanical) are not modeled in this guide and depend on installer scope. Zoning fees, site plan review fees, and stormwater management permits are separate from the building permit fee. New SFD construction uses a different flat $684 building permit fee not covered here. Verify directly with the Department before filing.

Written by: Munib Ur Rehman

Data verified against official fee schedule documents.