Bylaw at a glance
Rate$200.75 per billing unit
Billing unit291 m² of impervious area
Credit cap50% for stormwater fee credit; 90% for Lake Ontario direct-discharge credit
Green-space creditAvailable on properties with significant on-site vegetation — flagged per parcel in the lead set
ResidentialSingle-family flat tier — not credit-eligible
EligibilityImpArea (non-residential) + multi-residential by impervious billing
Data freshnessCity publishes per-parcel billing; refreshed annually
Top lead categories
Category
Leads
Total $/yr
ImpArea (non-residential)
9,378
$24.8M
Multi-Residential (per unit)
590
$1.9M
Multi-Residential (by area)
869
$1.3M
Condo / Mixed
4
$90K
ImpArea accounts for ~88% of billing — the focused hunt list. Of those, 475 parcels bill over $10K each.
What makes Hamilton different
City publishes the billing data directly gold standard
Unlike Mississauga (where we compute charges from imagery), Hamilton publishes the city's Stormwater_Fee_Calculator_Data layer with ANNUAL_FEE and BILLING_UNIT_COUNT per parcel. Every dollar on every popup is the city's own number, not our estimate. Zero defensibility risk — your engineer is comparing notes with city data, not arguing about it.
Data provenance & defensibility
Source layerCity of Hamilton's published Stormwater_Fee_Calculator_Data_Public_View_Layer on the city ArcGIS hub
Authoritative billingANNUAL_FEE and BILLING_UNIT_COUNT pulled per parcel — the same numbers on each owner's bill
Refresh cadenceAnnual — re-pull on bylaw rate updates
Green-space flagCity layer carries the GREEN_SPACE_ELIGIBLE flag — surfaces the 90% Lake Ontario credit candidates
Excluded by designSingle-family residential (flat tier, no credit available)
Confidence flagsEach lead carries Eligibility (Likely / Possible) + Confidence per the city's published criteria
Charge distribution
Median charge$504 / yr per eligible parcel
90th percentile$5,295 / yr
Largest single charge$727,301 / yr (1495 Burlington St E, Industrial)
$10K+ priority list475 parcels billing over $10K each — the focused outbound shortlist
Notable contested leads
9300 Airport Rd$695,703 / yr — John C. Munro Hamilton International Airport. Flag for manual review; airports are typically contested between city and operator.
For the sales call
"How accurate are these numbers?"
They're not our estimates — they're the city's own billing data, published as open data on the Hamilton ArcGIS hub. Every charge matches the property owner's actual bill.
"How recent is the data?"
Pulled directly from the city's published Stormwater Fee Calculator. We re-sync on every bylaw rate update (annual).
"Why isn't single-family residential here?"
Hamilton's bylaw puts single-family on a flat tier with no credit available. Including them would dilute the prospect list with non-targets.
"What's the 90% credit about?"
Properties that discharge directly to Lake Ontario can earn up to 90% credit (vs the 50% standard cap). The green-space-eligible flag from the city's data surfaces these candidates.
11 parsed reports for Hamilton
Every field above — controls, hydraulic tables, TSS, BMPs, P.Eng metadata — extracted from real Hamilton FSRs.
See Hamilton reports →
Open the live map
Filter by charge range, search any address, click any parcel for the city's published charge + credit-confidence — and pull the ranked CSV.
/hamilton.html →