City of Toronto
Ravine lots, infill development parcels, properties near the Don, Humber, Rouge, and Etobicoke watersheds, and TRCA-regulated areas.
Common authority: Toronto and Region Conservation Authority (TRCA)GIS consulting across the GTA and Southern Ontario.
Zavia GIS serves property owners, realtors, builders, and consultants across the Greater Toronto Area and beyond. Every region in Southern Ontario has its own conservation authorities, hazard mapping, and natural heritage data — we know where to look for each one.
Cities and regions across the GTA.
Mississauga & Peel
Credit River and Etobicoke Creek watersheds, ravine lots, urban infill, redevelopment parcels, and CVC / TRCA regulated areas.
Common authorities: Credit Valley Conservation (CVC), TRCAOakville & Halton
Sixteen Mile Creek, Bronte Creek watersheds, escarpment properties, custom-home lots, and Conservation Halton regulated areas.
Common authority: Conservation HaltonBurlington
Escarpment proximity, creekside properties, rural & semi-rural lots in north Burlington, custom home builds.
Common authority: Conservation HaltonHamilton
Niagara Escarpment properties, Spencer Creek and Red Hill Creek watersheds, rural parcels in Flamborough, Glanbrook, Stoney Creek.
Common authority: Hamilton Conservation AuthorityYork Region
Vaughan, Markham, Richmond Hill, Aurora, Newmarket, King Township. Includes Oak Ridges Moraine and Greenbelt properties.
Common authorities: TRCA, Lake Simcoe Region Conservation Authority (LSRCA)Durham Region
Pickering, Ajax, Whitby, Oshawa, Clarington — including rural parcels, ravine lots, and Lake Ontario shoreline properties.
Common authorities: CLOCA, TRCACaledon & rural Peel
Rural & semi-rural acreage, custom home lots, Greenbelt & Niagara Escarpment properties, conservation-regulated parcels.
Common authorities: CVC, TRCAWider Southern Ontario
Niagara, Kitchener-Waterloo, Guelph, Wellington County, Brantford, and surrounding regions. Ask if your area is covered.
Various conservation authoritiesEvery region has its own mapping ecosystem.
A property scan in Toronto pulls different datasets than one in Oakville. TRCA's regulated-area mapping is structured differently from Conservation Halton's. Greenbelt overlays in Caledon don't apply in Hamilton.
We know where to look for each region's authoritative data — which means the report you get is faster to produce, more accurate, and built around the right authority for the parcel.
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TRCAToronto and Region Conservation Authority — Toronto, Peel (east), York (south), Durham (west)
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CVCCredit Valley Conservation — Mississauga, Brampton, Caledon, Halton Hills
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Conservation HaltonOakville, Burlington, Milton, Halton Hills, Hamilton (east)
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HCAHamilton Conservation Authority — Hamilton, Flamborough, rural Stoney Creek
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CLOCACentral Lake Ontario Conservation Authority — east Durham
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LSRCALake Simcoe Region Conservation Authority — north York Region
What we see most often in this market.
GTA ravine lots
Caledon & King Twp acreage
Oak Ridges Moraine parcels
Niagara Escarpment properties
Custom home lots — Oakville / Burlington
Infill lots — Toronto / Mississauga
Lake Ontario shoreline (Durham)
Sixteen Mile / Bronte Creek properties
Greenbelt-adjacent parcels
Flood-plain proximity properties
Wooded suburban infill
Small-developer subdivision parcels
Send the address — we'll handle the rest.
One-business-day response. Scope and pricing confirmed before any work begins.