509 21 Avenue SW
509 21 Avenue SW is a condominium building with 23 units in Cliff Bungalow, Calgary, built in 2006 on a 12,007 sq ft lot. The City of Calgary assessed its typical unit at $403,000 for 2026, +25.0% over 3 years.
$403,000
Typical unit, 2026 assessed value · about $2,680 a year in property tax
Change in assessed value
- 3 years+25.0%
- 5 years+31.7%
- 10 years-1.0%
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 346 low-rise condos in Cliff Bungalow
Valued above about 90% of low-rise condos in Cliff Bungalow. The typical one is assessed at $312K; this one is 29% higher.
Facts
- Kind of property
- Condominium building with 23 units
- Whole property
- $9,679,500
- 2025 assessed value
- $424,000
- Year built
- 2006
- Lot size
- 12,007 sq ft
- Zoning
- M-C2
- City use code
- R201
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
- 2004 · Fourplex demolishedBuilding permit
- 2006 · Apartment building builtCity assessment records and building 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 (11)
- Interior Alteration - Condo RenovationBuilding permit · Feb 2024 · est. $110,000 · completed · BP2024-01901
- Exterior AlterationsBuilding permit · Jul 2023 · est. $44,765 · completed · BP2022-14730
- Changes to site plan: exterior renovations (barrier free ramp)Development permit · Apr 2023 · approved · DP2022-07707
- Commercial / multi family project (improvement)Building permit · Apr 2018 · est. $606,000 · completed · BP2018-03084
- Exterior alterationBuilding permit · Aug 2012 · est. $200,000 · completed · BP2012-11320
From the City of Calgary's open data, up to Oct 2026. The map lists every one. Costs are the applicant's estimate.
Along 21 Avenue SW
- 321 21 Avenue SW$9.10M
- 328 21 Avenue SW$346K
- 505 21 Avenue SW$2.17M
- 510 21 Avenue SW$13.21M
- 516 21 Avenue SW$872K
- 520 21 Avenue SW$3.51M
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.