6401 4 Street NW
6401 4 Street NW is a house in Thorncliffe, Calgary, built in 1968 on a 7,086 sq ft lot. The City of Calgary assessed it at $824,500 for 2026, +34.6% over 3 years.
$824,500
2026 assessed value · about $5,480 a year in property tax
Change in assessed value
- 3 years+34.6%
- 5 years+62.9%
- 10 years+58.7%
- 20 years+160.9%
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.
Facts
- Kind of property
- House
- 2025 assessed value
- $807,000
- Year built
- 1968
- Lot size
- 7,086 sq ft
- Zoning
- R-C2,R-CG
- City use code
- R121
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.
2 legal secondary suites
On the City of Calgary's secondary suite registry: approved and inspected, Sep 2020.
Permits (3)
- Secondary SuiteBuilding permit · Jul 2020 · est. $2,500 · completed · BP2020-09550
- Secondary SuiteBuilding permit · Jul 2020 · est. $2,000 · completed · BP2020-09512
- New: secondary suite (existing - basement of semi-detached dwelling - 2) - 2 parking stallsDevelopment permit · Mar 2020 · approved · DP2020-0926
From the City of Calgary's open data, up to Oct 2026. Costs are the applicant's estimate.
Along 4 Street NW
- 6329 4 Street NW$842K
- 6333 4 Street NW$449K
- 6335 4 Street NW$449K
- 6440 4 Street NW$308K
- 6503 4 Street NW$613K
- 6507 4 Street NW$551K
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.