The Calgary Home Buyer's Due Diligence Checklist

Calgary moves fast. Infill is everywhere, offer windows are short, and the city carries a flood history that still shapes where it's safe to buy. Before you write an offer, here's what's worth checking — and where the public record actually lives in Calgary and Alberta. None of this replaces a home inspection, a lawyer, or your own judgment. It's the records layer that comes first.

1. Permit history — every building and development permit on file

Calgary publishes permit data on the Open Calgary data portal, updated daily. Building permits go back to 2000; development permits go back to 1979. That history tells you what work has been done to a property, what was approved, and — critically — what's still open.

• Open permits: work started but never inspected or closed. An open permit doesn't disappear at closing — it transfers to you, along with the cost of bringing the work up to code or closing the file.
• Major renovations with no matching permit: a finished basement, deck, garage, or rear addition with no permit on record can signal unpermitted work.
• Pattern of activity: Calgary's infill market means many homes have been heavily modified. The permit timeline shows what's real versus what's just been painted over.

2. The Real Property Report and Certificate of Compliance

A Real Property Report (RPR) is a legal survey showing where structures sit relative to property lines. A Certificate of Compliance is the City of Calgary confirming those structures meet the Land Use Bylaw. Ask whether there's a current RPR with a Certificate of Compliance. If a deck, garage, or fence was added after the last RPR — or sits over a property line or easement — it can become your problem after closing. This is one of the most common closing-day surprises in Calgary.

3. Flood zone status

Calgary's flood risk is not theoretical. The 2013 flood affected roughly 6,000 homes. The City maintains a Regulatory Flood Map that places properties in a Floodway, Flood Fringe, or Overland Flow zone along the Bow River, Elbow River, Nose Creek, and West Nose Creek. Each zone carries different development rules under the Land Use Bylaw.

• The Government of Alberta released updated Flood Hazard Area maps in 2025, and the City is updating its own flood regulations — including a proposed groundwater flood fringe. Make sure the mapping you rely on is current.
• Flood zone status affects what you can build, your insurance options, and resale. Confirm any property's status on the City's official flood map before you offer.

4. Zoning and land-use — especially if you have plans

If you intend to add a secondary suite, develop, or renovate significantly, the property's zoning determines what's actually permitted. Calgary's Land Use Bylaw is being updated alongside the flood regulation work, so don't rely on an old listing description or a code you saw years ago. Verify the current land-use designation and what it allows for your specific plans.

5. Title items — easements, encroachments, and covenants

A title can carry an easement (someone else has a legal right to use part of the land — often a utility), an encroachment (a structure crossing a boundary), or a restrictive covenant (a binding limit on what can be built or modified). These are recorded through Alberta Land Titles. They're public-record context — your real estate lawyer confirms the final, certified title before closing.

6. Age-based risk signals

The year a home was built tells you which risks are statistically more likely. These are age-based probabilities only, not confirmation that any issue is present:

• Poly-B plumbing — common in homes built 1978–1995; associated with elevated failure and insurance concerns.
• Asbestos-containing materials — possible in original components of pre-1990 homes; a regulated concern in Alberta the moment those materials are disturbed.
• Aging mechanical and roofing — furnace, water heater, and shingle lifespan worth planning around.

A qualified inspector confirms whether any of these are actually present. The records just tell you what to look for.

7. Drainage and basement flooding

In Calgary, the most common water concern for a home isn't the river — it's basement flooding from heavy rain and local stormwater. Lot grading, downspout direction, and the sewer infrastructure serving the property all matter. Stormwater flooding is expected to become more common as rainfall intensity increases, so it's worth understanding how water moves on and around the lot.

Where Property Proof fits

A Property Proof report pulls the records side of this checklist together for a Calgary address — permit history with open/closed status, flood zone context, zoning and land-use, fire and hydrant proximity, sewer infrastructure, and age-based risk signals — sourced from official City of Calgary and Government of Alberta data, every record timestamped and attributed.

It is not a home inspection, a property valuation, a legal opinion, or a certified title. It's the records layer that comes before all of those — so you can decide whether a property is worth pursuing, and ask sharper questions when it is.

One address. $49. Ready in minutes.

Facts only. Records only. No opinions. This article is general information, not legal, insurance, or inspection advice. Confirm flood status on the City of Calgary's official flood map, verify title with your real estate lawyer, and engage a licensed inspector for property-specific assessment.