Photo: Earth Science and Remote Sensing Unit , Lyndon B. Johnson Space Center · Public domainHazard risk in Castlemore Estates is lower than in 89% of Canadian towns
The national fire record shows next to nothing around Castlemore Estates, 0% of the land within 25 km since 1986 (0.000% a year). Seismic risk in Castlemore Estates sits near the middle: $0.030 of expected damage per $1,000 of buildings a year, the typical town $0.030. Fewer homes than usual carry radon here, 0% over the guideline where the typical town has 6.6%. Hazard risk gives Castlemore Estates a grade of A, from earthquakes and radon alone.
What stands out about Castlemore Estates’s hazards
Four national sources, each read for Castlemore Estates: earthquakes, radon, past fires and flood studies.
What Castlemore Estates faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Castlemore Estates grades A for hazard risk
Risk averages earthquakes and radon; wildfire joins only where it pulls the average down, so a town like Castlemore Estates with little fire nearby would get no credit for it.
Its place: #105 of 866 in Ontario and #417 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. Small fires and grass fires are largely missing from the national burned-area record.
Few fires near Castlemore Estates: 0% within 5 km, 0% within 25 km
Fires mapped since 1986 around where Castlemore Estates’ residents live, and the fuel next to their homes.
Forty years of fire maps put Castlemore Estates at 0.000% a year, low next to the typical Canadian town’s 0.000%.
The forest starts beyond town: 0.8% of the land within 5 km of Castlemore Estates’ homes is forest fuel, against 6.2% within 25 km.
Shares of land within 5 and 25 km of populated blocks: burned at least once in 1986–2025 (CWFIS burned-area composite), forest fuel and grass (fire behaviour fuel types, 2026, 250 m grid).
Burn rate a year, towns in Ontario · highest of 871
To three decimals the burn rate around Castlemore Estates is zero, as for 638 of the 871 towns in Ontario, while Sioux Lookout reaches 0.16%.
Each bar: the yearly average share of land within 25 km of a town’s homes that burned, 1986–2025 (CWFIS); the seven highest towns of 2,500 people or more.
Most of the country’s 2,610 towns are low-band (92%, against 7.5% above); around Castlemore Estates, burning rounds to zero.
Bands of the yearly burn rate: low under 0.05%, moderate under 0.25%, high under 1%, very high 1% or more; towns of 2,500 people or more.
Fire danger and active fires (CWFIS)
Canadian Wildland Fire Information System: National Burned Area Composite 1986–2025 and fire behaviour fuel types (2026), Natural Resources Canada. Measured within 25 km and 5 km of each populated dissemination area; past fire, not a forecast.
A flood study covers Castlemore Estates, from Toronto Regional Conservation Authority: 1 on the inventory
Flood studies whose area touches Castlemore Estates, from NRCan’s inventory, each linked to its owner.
Toronto Regional Conservation Authority holds the flood mapping that covers Castlemore Estates (2021), linked below.
| Study | By | Year | Status |
|---|---|---|---|
| Toronto Floodline Consolidation | Toronto Regional Conservation Authority | 2021 | final |
Towns with a flood study on file
69% of towns in Ontario have a flood study, more than Canada’s 58%; Castlemore Estates has one too.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood studies don’t enter the grade; they are listed so you can open the official map for Castlemore Estates.
The inventory’s own caution (NRCan): “The Canada Flood Map (CFM) does not include every flood hazard map in Canada and may be incomplete or contain inaccuracies. It should not be relied upon as the official source of flood mapping information. Furthermore, if a map appears to be missing, this does not necessarily mean that the area has never been mapped. For the official version of a map, updated information, or confirmation of applicable regulations, please contact the local authority responsible for flood mapping.”
Natural Resources Canada, Canada Flood Map Inventory; links go to each study’s owner.
Ordinary seismic risk in Castlemore Estates: $0.030 per $1,000 of buildings a year
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
Castlemore Estates’ $0.030 is the typical figure ($0.030): ordinary ground for Canada.
Castlemore Estates doesn’t get its own earthquake risk figures; the ones here come from the city of Brampton.
Shaking damage a year per $1,000 of building value
The typical town in Ontario expects $0.043 a year in shaking damage; Castlemore Estates expects less, $0.030, and Alexandria the most, $0.21.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Neither high nor low for Canada: 48% of the 2,611 towns expect more damage than Castlemore Estates.
Each column: the share of Canada’s towns of 2,500 people or more in that range of yearly loss per $1,000 (NRCan, 2022).
The loss is to Castlemore Estates’ buildings alone, from ground shaking; infrastructure and secondary hazards are left out.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Little radon around Castlemore Estates: 0% of area homes over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline.
Radon runs below the typical Canadian town (6.6%) in Castlemore Estates’ area, at 0%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Against the typical town in Ontario (4%), the area around Castlemore Estates has fewer high tests: 0%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Castlemore Estates is in the lowest band, with 37% of Canada’s 2,611 towns: under 5% of tests over the guideline, while 63% have more.
Each bar: the share of Canada’s towns of 2,500 people or more whose survey area had that share of tests over 200 Bq/m³.
The share describes the area, not a house: in Castlemore Estates as anywhere, test to be sure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). · Area behind the radon tests figures: the Peel Regional Health Unit
Weather and fire alerts for Castlemore Estates
Alerts for Castlemore Estates come from Environment and Climate Change Canada and, for emergencies, Alert Ready.
| Alert | What it means |
|---|---|
| Warning | Severe weather is happening or about to: act now. |
| Watch | Conditions favour severe weather: be ready. |
| Advisory | Weather that is less severe but could disrupt the day. |
| Special weather statement | Unusual weather worth knowing about. |
| Special air quality statement | Poor air, often wildfire smoke. |
Evacuation orders for Castlemore Estates come from the municipality or the province, while CWFIS maps fire danger every day.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Castlemore Estates’ neighbours compare on hazards
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Castlemore Estates | Low | $0.030 | 0% | Yes |
| Wildfield 8,511 · 1.7 km | Low | $0.030 | 0% | Yes |
| Vales of Castlemore 14,894 · 2.7 km | Low | $0.030 | 0% | Yes |
| Rivers Edge / Castlemore Crossing 6,577 · 3.1 km | Low | $0.030 | 0% | Yes |
| Valley Creek 11,986 · 3.1 km | Low | $0.030 | 0% | Yes |
| Mount Royal 6,421 · 3.1 km | Low | $0.030 | 0% | Yes |
| Sandalwood East (mountainash) 21,801 · 3.6 km | Low | $0.030 | 0% | Yes |
Wildfield (low) has the heaviest fire record of Castlemore Estates’ neighbours, and Castlemore Estates (low) matches or beats it.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Castlemore Estates faces
What to do about the hazards Castlemore Estates faces, and what to ask before you buy.
- Test for three months in winter.
- Over 200 Bq/m³: fix it.
- Kits are cheap; pros test too.
- Never drive through floodwater.
- Move papers and medicines upstairs.
- Ask whether your street is mapped.
- Clear needles and wood nearby.
- Keep a grab-and-go bag ready.
- In smoke, stay in; filter air.
- Has it had a radon test?
- Check the address on the flood map.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Radon is a survey. Radon figures pool the survey’s home tests by area: postal areas once their boundaries arrive, the 2007 health region around Castlemore Estates until then.
- Earthquakes are modelled. Shaking damage is modelled from the ground, the buildings and the odds of each quake, and published for whole subdivisions such as Castlemore Estates’.
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Castlemore Estates’ homes burned each year from 1986 to 2025, past fire rather than a forecast, and it can only lower Risk.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Castlemore Estates without grading them.
Questions about flooding and hazards in Castlemore Estates
Is Castlemore Estates at risk of wildfire?
The burned-area record shows next to nothing around Castlemore Estates (0% within 25 km since 1986), so its band is low.
How is Castlemore Estates’s Hazard risk Grade worked out?
Hazard risk gives Castlemore Estates A, weighing earthquakes and radon and counting wildfire only against it.
Does Castlemore Estates flood?
A flood study covers Castlemore Estates on Canada’s Flood Map Inventory; open the owner’s map to check a street, since flood isn’t graded.
Is radon a problem in Castlemore Estates?
Around Castlemore Estates, 90 survey homes were tested and 0% came in over 200 Bq/m³, a guide to the area, not to any one home.
How big is the earthquake risk in Castlemore Estates?
Expected earthquake damage in Castlemore Estates comes to $0.030 a year for each $1,000 that buildings are worth.
Seismic risk: Natural Resources Canada. Radon: Health Canada. Wildfire: Canadian Wildland Fire Information System. Flood studies: Natural Resources Canada, Canada Flood Map Inventory. Contains information licensed under the Open Government Licence – Canada.
Sources: NRCan, Canada’s Seismic Risk Model 2022 · Health Canada, Cross-Canada Survey of Radon Concentrations in Homes · CWFIS, National Burned Area Composite and FBP fuel types · NRCan, Canada Flood Map Inventory. Under the Statistics Canada Open Licence.
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).