313 21 Avenue SW
313 21 Avenue SW is a lot with 2 homes in Mission, Calgary, built in 1989 on a 3,751 sq ft lot. The City of Calgary assessed its typical unit at $519,500 for 2026, +20.5% over 3 years.
$519,500
Typical unit, 2026 assessed value · about $3,450 a year in property tax
Change in assessed value
- 3 years+20.5%
- 5 years+24.2%
- 10 years+24.4%
The change in the City's assessment of the same units, to 2026. Years before the building was finished or before a jump in its value are left out.
Compared with 36,767 duplexes in Calgary
Valued above about 35% of duplexes in Calgary. The typical one is assessed at $581K; this one is 11% lower.
Facts
- Kind of property
- Lot with 2 homes
- Whole property
- $1,039,000
- 2025 assessed value
- $503,250
- Year built
- 1989
- Lot size
- 3,751 sq ft
- Zoning
- DC
- City use code
- R120
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.
Permits (2)
- Basement developmentBuilding permit · Jan 2020 · est. $21,367 · completed · BP2020-00080
- 2 semi-detached dwellingsDevelopment permit · Jul 1989 · approved · DP1989-1580
From the City of Calgary's open data, up to Oct 2026. Costs are the applicant's estimate.
Along 21 Avenue SW
- 304 21 Avenue SW$1.21M
- 306 21 Avenue SW$3.37M
- 310 21 Avenue SW$3.74M
- 314 21 Avenue SW$3.32M
- 315 21 Avenue SW$953K
- 317 21 Avenue SW$724K
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.