Building Permit Fees in St. Louis, MO (2026)

The source named on this row is City of St. Louis Building Division building permit fees ($25 application + $10 per $1,000 over $3,000), source retrieved Sep 1, 2026, at stlouis-mo.gov. The schedule line on this row applies when the job value is over $3,000: a $25 application fee plus $10 per $1,000 of the full assumed valuation.

The official numbers apply that $10 rate to each full assumed valuation. They do not charge $10 only on the dollars above $3,000.

The multiplier is 8 at the $8,000 low, 12 at the $12,000 typical, and 22 at the $22,000 high.

• Low $8,000: $25 + $10×8 = $105.
• Typical $12,000: $25 + $10×12 = $145.
• High $22,000: $25 + $10×22 = $245.

The official typical project value is $12,000, and the assumed valuations are $8,000 low, $12,000 typical, and $22,000 high. The $105 low fee is listed with the $8,000 assumed valuation, the $145 typical fee is listed with the $12,000 assumed valuation, and the $245 high fee is listed with the $22,000 assumed valuation.

A permit is required on this path, and the fee follows that valuation formula. Two extras are listed, and both extras are included in the totals: the Application fee is $25, and the note on that extra is Included; the Building permit fee is $120, and the note on that extra is Included. $10 per $1,000 or fraction over $3,000.

That $120 building fee is the official extra at the typical valuation ($10×12), and $25 + $120 = $145. The low and high totals use the same formula.

They are not additional extra rows. These totals are for the City of St. Louis Building Division.

St. Louis is an independent city, not St. Louis County, and this row does not use a St. Louis County fee. Historic-district extras are not published in the fee schedule and are not added.

This row does not invent a historic-district review fee or any dollar that is not in the official schedule extract.

Residential Use Group R-3 like-for-like 3-ton (36,000 BTU) furnace plus condensing unit for the City of St. Louis Building Division, an independent city and not St. Louis County (source retrieved Sep 1, 2026). The cited schedule is City of St. Louis mechanical permit fees (Ordinance 70800) at stlouis-mo.gov.

Under Ordinance 70800, residential R-3 mechanical fees are a $25 application fee plus $40 for a furnace, $40 for a condensing unit, or $40 for a combination furnace/condensing unit. Typical/low = $25 + $40 combination = $65.00.

High = $25 + $40 furnace + $40 condensing = $105.00. Listed fee low, typical, and high stay $65.00 / $65.00 / $105.00.

Three extras are listed: Application fee $25 (Included.), Combination furnace/condensing unit $40 (Residential R-3 line. Included in typical/low.), and Furnace + condensing billed separately $80 (High path only: $40 + $40.). The $80 separate-billing extra is the high path only and is not added on top of the typical $65.00.

The $25 application fee is included in every listed band. The documented 3-ton like-for-like split uses the combination furnace/condensing unit line for typical and low; the high band is the same R-3 schedule when furnace and condensing are billed as two $40 lines instead of one combination line.

The official typical project value is $7,500. Valuation is unused because this fee is flat.

A permit is required on this path. This row does not invent an electrical permit dollar, a St. Louis County mechanical fee, or any line that is not on the Ordinance 70800 extract.

Confirm the Residential Use Group R-3 combination line versus separate furnace and condensing billing with the City of St. Louis Building Division before you apply.

The source named on this row is City of St. Louis Building Division building permit fees ($25 application + $10 per $1,000 over $3,000), source retrieved Sep 1, 2026, at stlouis-mo.gov. The schedule line on this row applies when the job value is over $3,000: a $25 application fee plus $10 per $1,000 of the full assumed valuation, or fraction thereof.

The official numbers apply that $10 rate to each full assumed valuation. They do not charge $10 only on the dollars above $3,000.

The multiplier is 8 at the $8,000 low, 12 at the $12,000 typical, and 20 at the $19,200 high. At $19,200 the thousand-count is 19.2, and the schedule's or-fraction rule rounds that up to 20.

• Low $8,000: $25 + $10×8 = $105.
• Typical $12,000: $25 + $10×12 = $145.
• High $19,200: $25 + $10×20 = $225.

The official typical project value is $12,000, and the assumed valuations are $8,000 low, $12,000 typical, and $19,200 high. The $105 low fee is listed with the $8,000 assumed valuation, the $145 typical fee is listed with the $12,000 assumed valuation, and the $225 high fee is listed with the $19,200 assumed valuation.

A permit is required on this path, and the fee follows that valuation formula. Two extras are listed, and both extras are included in the totals: the Application fee is $25, and the note on that extra is Included; the Building permit fee is $120, and the note on that extra is Included.

That $120 building fee is the official extra at the typical valuation ($10×12), and $25 + $120 = $145. The low and high totals use the same formula.

They are not additional extra rows. These totals are for the City of St. Louis Building Division.

St. Louis is an independent city, not St. Louis County, and this row does not use a St. Louis County fee. Attached residential deck uses the building-permit valuation table.

The typical-job spec on this row is 16×20 = 320 sf of walking surface. This row does not invent a historic-district review fee, a St. Louis County building fee, or any dollar that is not in the official schedule extract.

The source named on this row is City of St. Louis Building Division building permit fees ($25 application + $10 per $1,000 over $3,000), source retrieved Sep 1, 2026, at stlouis-mo.gov. The kitchen typical path is building plus electrical.

Plumbing dollars were not fully extracted and are not added. The building schedule line applies when the job value is over $3,000: a $25 application fee plus $10 per $1,000 of the full assumed valuation.

The official numbers apply that $10 rate to each full assumed valuation. They do not charge $10 only on the dollars above $3,000.

The multiplier is 15 at the $15,000 low, 35 at the $35,000 typical, and 75 at the $75,000 high.

• Low $15,000 building: $25 + $10×15 = $175.
• Typical $35,000 building: $25 + $10×35 = $375.
• High $75,000 building: $25 + $10×75 = $775.

Electrical on every band is Ordinance 70802 residential repair/modify: $25 application + $60 first unit = $85. Low total: $175 + $85 = $260.

Typical total: $375 + $85 = $460. High total: $775 + $85 = $860.

The official typical project value is $35,000, and the assumed valuations are $15,000 low, $35,000 typical, and $75,000 high. A permit is required on this path.

Three extras are listed: Building permit $375 (Included. $25 + $10 per $1,000.) at the typical valuation; Electrical permit (residential repair/modify) $85 (Ordinance 70802: $25 application + $60 first unit. Included.); and Plumbing permit with no listed dollar (Separate plumbing permit may apply; fixture table was not fully extracted and is not added.). $375 + $85 = $460 is the typical total. Low and high use the same building formula plus the same $85 electrical.

They are not additional extra rows. These totals are for the City of St. Louis Building Division.

St. Louis is an independent city, not St. Louis County, and this row does not use a St. Louis County fee. The typical-job spec on this row is 200 sf affected area.

This row does not invent a plumbing fixture-table dollar, a historic-district review fee, a St. Louis County building fee, or any dollar that is not in the official schedule extract.