Building Permit Fees in Boston, MA (2026)

City of Boston ISD Building Fees (5/15/2023) + Repair A Roof (source retrieved Sep 1, 2026). Covering-only reroof is the official short-form path.

Short-form is a $20 primary plus $10 per $1,000 of estimated cost, and the $1,000 count uses ceil when the estimated cost is not a round thousand. The official valuations of $8,000, $12,000, and $22,000 are each a round thousand, so ceil does not change the count.

The official typical project value is $12,000. Walk the fee in three steps on the typical path.

1. Step 1: confirm the job is covering-only reroof on the short-form schedule.
2. Step 2: take the official $12,000 valuation, divide by $1,000 to get 12 thousands, and multiply by $10 to get $120.
3. Step 3: add the short-form primary, so $20 + $120 = $140, which is the typical fee.

Structural sheathing/framing is long-form ($50 + $10/$1,000). That long-form path is not the official total on this row, and this note does not add a long-form dollar to the low fee, the typical fee, or the high fee.

• Low $8,000: $8,000 / $1,000 = 8, and 8 × $10 = $80.

Short-form primary $20 + $80 = $100, so the low fee is $100.

• Typical $12,000: $12,000 / $1,000 = 12, and 12 × $10 = $120.

Short-form primary $20 + $120 = $140, so the typical fee is $140. The official extras are the $20 short-form primary and the $120 per-$1,000 line at $12,000, and both are included in the $140.

• High $22,000: $22,000 / $1,000 = 22, and 22 × $10 = $220.

Short-form primary $20 + $220 = $240, so the high fee is $240. If the estimated cost were not a round thousand, ceil would raise the thousand count before the $10 multiply; on these listed valuations that does not apply.

On the long-form alternate at the same $12,000 valuation, the primary would be $50 and the per-$1,000 line would still be $120, for $170, and that $170 is not the typical fee. The Building Fees PDF is dated May 15, 2023 and was still posted on Sep 1, 2026.

No Massachusetts building-permit surcharge is on the ISD sheet, and this note does not add one.

Boston ISD Building Fees 5/15/2023; Gas Permits; Sheet Metal Permits (source retrieved Sep 1, 2026). ISD has no dedicated HVAC replacement page.

The official total sums the published gas furnace/heater line plus sheet metal for the first 200 lin/sq ft. The documented typical job is a like-for-like 3-ton (36,000 BTU) AC/heat pump plus an 80,000 BTU mid-efficiency gas furnace as the 3-ton companion; sheet-metal first 200 lin/sq ft only (no extra duct blocks).

There is no separate published AC/ton line; 3-ton cooling is covered by the sheet-metal permit. Gas furnace/heater is $20 + $50 each + $0.09 per 1,000 BTU.

Sheet metal is $20 + $25 for the first 200 lin/sq ft, which is $45. Extra 200-ft sheet-metal blocks are not added on this row.

The official assumed valuations of $5,000, $7,500, and $16,000 are the documented job-value bands. The official typical project value is $7,500.

Those valuations do not change the gas or sheet-metal arithmetic, and this note does not add a valuation percent to the low fee, the typical fee, or the high fee. Electrical is $20 + $1 per outlet or $0.25 per amp if a new circuit is required.

Amp and outlet counts are unpublished, so electrical stays an extra and is not dollarized into the low fee, the typical fee, or the high fee. Low: furnace-only 60 kBTU plus the sheet-metal minimum. $20 + $50 + $0.09 × 60 = $75.40, then $75.40 + $45 = $120.40, so the low fee is $120.40.

• Typical 80 kBTU: $20 + $50 + $0.09 × 80 = $77.20, then $77.20 + $45 = $122.20, so the typical fee is $122.20.

The official extras are the $77.20 gas furnace/heater at 80 kBTU and the $45 sheet-metal first 200 lin/sq ft, and both are included in the $122.20. High: 5-ton companion 120 kBTU furnace plus sheet metal for the first 200 lin/sq ft. $20 + $50 + $0.09 × 120 = $80.80, then $80.80 + $45 = $125.80, so the high fee is $125.80.

The Building Fees PDF is dated May 15, 2023 and was still posted on Sep 1, 2026.

Boston ISD Long-Form Permits + Building Fees 5/15/2023 (source retrieved Sep 1, 2026). The official path for a new or expanded deck is long-form.

Long-form is a $50 primary plus $10 per $1,000 of estimated cost, and the $1,000 count uses ceil when the estimated cost is not a round thousand. Repair with original stamped plans can be short-form ($20 primary plus $10 per $1,000).

That short-form path is not the official total on this row, and this note does not add a short-form dollar to the low fee, the typical fee, or the high fee. Microfilming is $3 per sheet extra if plans are filed.

Sheet count is unpublished, so this note does not add a microfilming dollar to the low fee, the typical fee, or the high fee. The official valuations are $8,000, $12,000, and $19,200.

The official typical project value is $12,000. $8,000 and $12,000 are each a round thousand, so ceil does not change those counts. $19,200 is not a round thousand.

• Low $8,000: $8,000 / $1,000 = 8, and 8 × $10 = $80.

Long-form primary $50 + $80 = $130, so the low fee is $130.

• Typical $12,000: $12,000 / $1,000 = 12, and 12 × $10 = $120.

Long-form primary $50 + $120 = $170, so the typical fee is $170. The official extras are the $50 long-form primary and the $120 per-$1,000 line at $12,000, and both are included in the $170.

• High $19,200: $19,200 / $1,000 = 19.2, and ceil takes that count to 20.

20 × $10 + $50 = $250, so the high fee is $250. The Building Fees PDF is dated May 15, 2023 and was still posted on Sep 1, 2026.

No Massachusetts building-permit surcharge is on the ISD sheet, and this note does not add one.

Boston ISD Kitchen/Bath remodel + Building Fees 5/15/2023 (source retrieved Sep 1, 2026). Totals are the building permit only.

The Kitchen/Bath remodel page says homeowners and contractors can apply for a short-form or long-form permit. Short-form is for renovating an existing bathroom when no other structural changes need to be made, such as cutting into a wall.

Long-form is for moving structural walls or egresses, such as expanding the bathroom or kitchen, creating a new window, or creating or removing a doorway. Short-form building is a $20 primary plus $10 per $1,000 of estimated cost, and the $1,000 count uses ceil when the estimated cost is not a round thousand.

Long-form building is a $50 primary plus $10 per $1,000 of estimated cost. The official valuations of $15,000, $35,000, and $75,000 are each a round thousand, so ceil does not change the count.

The official typical project value is $35,000. Low and typical use the short-form path.

High uses the long-form path, and that long-form total is the official high. Plumbing is $20 plus $5 each fixture.

Electrical stays on the published amp, outlet, or per-$1,000 lines. Gas stays on the published appliance lines.

Sheet metal is $20 plus $25 for the first 200 lin/sq ft. Those unit counts are unpublished, so plumbing, electrical, gas, and sheet metal are not dollarized into the low fee, the typical fee, or the high fee.

• Low $15,000: $15,000 / $1,000 = 15, and 15 × $10 = $150.

Short-form primary $20 + $150 = $170, so the low fee is $170.

• Typical $35,000: $35,000 / $1,000 = 35, and 35 × $10 = $350.

Short-form primary $20 + $350 = $370, so the typical fee is $370. The official short-form extra is short-form building at $35,000 for $370, and it is included as the typical.

• High $75,000: $75,000 / $1,000 = 75, and 75 × $10 = $750.

Long-form primary $50 + $750 = $800, so the high fee is $800. The official long-form extra is long-form building at $75,000 for $800, and it is included as the high.

The Building Fees PDF is dated May 15, 2023 and was still posted on Sep 1, 2026. No Massachusetts building-permit surcharge is on the ISD sheet, and this note does not add one.