623 Thornhill Drive NW
623 Thornhill Drive NW is a house in Thorncliffe, Calgary, built in 1994 on a 7,267 sq ft lot. The City of Calgary assessed it at $1,220,000 for 2026, +26.4% over 3 years.
$1,220,000
2026 assessed value · about $8,110 a year in property tax
Change in assessed value
- 3 years+26.4%
- 5 years+41.4%
- 10 years+41.7%
The change in the City's assessment of the same property, to 2026. Years before the building was finished or before a jump in its value are left out.
Compared with 2,034 detached houses in Thorncliffe
In the top tenth of detached houses in Thorncliffe. The typical one is assessed at $599K; this one is 104% higher.
Facts
- Kind of property
- House
- 2025 assessed value
- $1,220,000
- Year built
- 1994
- Lot size
- 7,267 sq ft
- Zoning
- R-C2,R-CG
- City use code
- R110
Think this value is wrong?
The City of Calgary mails assessment notices each January. During the review period that follows you can ask the City's assessors to look again, and by the deadline printed on your notice you can file a complaint with the Assessment Review Board. Values of similar homes nearby, like the ones above, are the usual starting point. Details are on calgary.ca under property assessment.
Building history
- 1994 · BuiltCity assessment records
- 2010 · House builtBuilding permit
Years built from the City's assessment rolls (2020 on), and completed permits for new buildings and demolitions (1999 on). Where they disagree, both are shown.
Permits (2)
- New house, fireplace, deck, porchBuilding permit · Jan 2010 · est. $257,344 · 1 new home · completed · BP2009-12256
- New: single detached dwellingDevelopment permit · Nov 2009 · approved · DP2009-3714
From the City of Calgary's open data, up to Oct 2026. Costs are the applicant's estimate.
Along Thornhill Drive NW
From the City of Calgary's open assessment data. An assessment is the City's estimate of market value on July 1, 2025, for property tax; it is not a sale price. The map also shows building permits, legal suites and homes for sale or rent.