Building Permit Fees in Kansas City, MO (2026)

KCMO Building Code §18-16 exempt work and §18-20(b)(2) 1-2 family fees (official code PDF 14842) (source retrieved Sep 1, 2026). The official typical path is a like-kind replacement of roof coverings on a one- and two-family dwelling with a light roof covering.

That path is exempt and does not require a permit. No permit fee applies.

A permit is not required on that typical path. The low fee, the typical fee, and the high fee are each $0.

The official typical project value is $12,000. Listed assumed valuations are $8,000 low, $12,000 typical, and $22,000 high.

Those valuations do not change the official $0 / $0 / $0 fees.

• Low $8,000: the exempt path does not use valuation, so the low fee stays $0.
• Typical $12,000: the exempt path does not use valuation, so the typical fee stays $0.
• High $22,000: the exempt path does not use valuation, so the high fee stays $0.

This row is KCMO (Jackson County), not Kansas City, Kansas. The official exemption does not include replacement of roof sheathing or deck, or structural modifications.

If the exemption fails, the official extra stays informational and is not rolled into the low fee, the typical fee, or the high fee. The official extra is the §18-20 one- and two-family fee at $12,000: $58 + $4.33 x 10 = $101.30.

That $101.30 is not in the official $0 totals. The official §18-20 schedule from $2,001 through $100,000 is $58 plus $4.33 per additional $1,000 or fraction over $2,000, which is the arithmetic already listed on this extra.

This note does not invent a non-exempt fee at $8,000 or at $22,000, because those dollars are not listed on this row. This note does not invent a fee beyond the official $0, $0, and $0 totals.

KCMO Building Code §18-20 one- and two-family detached dwelling permit fees (source retrieved Sep 1, 2026). The official typical path is the one- and two-family combined building, mechanical, plumbing, and electrical permit under section 18-20, not a separate HVAC flat.

The official schedule band is $2,001–$100,000: $58 plus $4.33 per additional $1,000 or fraction over $2,000. The fee is based on the project valuation.

A permit is required on that typical path. The low fee is $70.99, the typical fee is $83.98, and the high fee is $118.62.

The official typical project value is $7,500. Listed assumed valuations are $5,000 low, $7,500 typical, and $16,000 high.

All three listed valuations fall in that $2,001–$100,000 band. The $5,000 valuation is $3,000 over $2,000, which is 3 exact additional thousands, so the multiplier is 3.

The $16,000 valuation is $14,000 over $2,000, which is 14 exact additional thousands, so the multiplier is 14. The $7,500 valuation is $5,500 over $2,000, which is 5 additional thousands plus a $500 remainder, and that remainder counts as one additional $1,000, so the multiplier is 6.

Optional express review of $30 is not included.

• Low $5,000: $58 + $4.33 x 3 = $70.99, which is the low fee of $70.99.
• Typical $7,500: $58 + $4.33 x 6 = $83.98, which is the typical fee of $83.98.

The official extra (one- and two-family combined building/MEP permit §18-20 at $7,500) is included in the typical total. It is not added again.

• High $16,000: $58 + $4.33 x 14 = $118.62, which is the high fee of $118.62.

The $118.62 high is not added on top of the $83.98 typical. This note does not invent a fee beyond the official $70.99, $83.98, and $118.62 totals.

This note does not use an unlisted schedule band.

KCMO Building Code §18-20 (source retrieved Sep 1, 2026). The official typical path is the §18-20 1-2 family combined permit.

The fee is based on the project valuation. A permit is required on that typical path.

The low fee is $83.98, the typical fee is $101.30, and the high fee is $135.94. The official typical project value is $12,000.

Listed assumed valuations are $8,000 low, $12,000 typical, and $19,200 high. On the $2,001 to $100,000 band the schedule is $58 plus $4.33 per additional $1,000 or fraction over $2,000.

The official §18-20 1-2 family combined permit extra line is $101.30 at $12,000 and matches the typical fee. Walk the three listed valuations.

• Low $8,000: additional thousands over $2,000 are ($8,000 - $2,000) / $1,000 = 6; $58 + $4.33 × 6 = $58 + $25.98 = $83.98, so the low fee is $83.98.
• Typical $12,000: additional thousands over $2,000 are ($12,000 - $2,000) / $1,000 = 10; $58 + $4.33 × 10 = $58 + $43.30 = $101.30, listed as the typical fee of $101.30.
• High $19,200: additional thousands over $2,000 are ($19,200 - $2,000) / $1,000 = 17.2, which counts as 18 by fraction; $58 + $4.33 × 18 = $58 + $77.94 = $135.94, so the high fee is $135.94.

The $101.30 typical is not added on top of the $83.98 low, and the $135.94 high is not added on top of the $101.30 typical. Platforms ≤30 in above grade may be exempt under §18-16; typical 16×20 dataset deck is treated as permitted, so that exemption does not apply on this row.

Cite KCMO Building Code §18-20 for the 1-2 family combined permit schedule used on this row. Kansas City, Missouri (Jackson County), not Kansas City, Kansas.

The short listed walk is $8,000 = $83.98; $12,000 = $101.30; $19,200: $58 + $4.33 × 18 = $135.94. Those three lines are the only valuation dollars on this row.

This note does not invent a fee beyond the official $83.98 / $101.30 / $135.94 totals.

$15,000: $58+$4.33×13=$114.29. $35,000: $58+$4.33×33=$200.89. $75,000: $58+$4.33×73=$374.09.