Toronto address · Ward 20, Scarborough Southwest
21 Mack Ave
The City of Toronto has 2 building permits since 2017 (2 still open) on record for this address.
Building permits
Every permit the City lists for this address since 2017, and any still open from before, newest first.
- Inspections under way
Plumbing
Plumbing - To create a second suite in existing basement, interior alterations to the ground floor
Applied May 24, 2011 · issued May 24, 2011 · Permit 11 103610 PLB
- Inspections under way
Small residential project · Multiple projects
To create a second suite in existing basement, interior alterations to the ground floor
Applied Jan 10, 2011 · issued Feb 14, 2011 · 1 home added · Permit 11 103610 BLD
Committee of Adjustment
No applications to the City's Committee of Adjustment for this address since 2017. That's where an owner asks for a minor variance (a small exception to the zoning by-law) or a consent to divide a lot.
What’s planned nearby
Development sites within 500 m
No rezoning, site plan, subdivision or condominium file open within 500 m, and no pre-construction project on the site.
Neighbours’ Committee of Adjustment files within 250 m
594 Warden Ave · Minor variance
Proposed front and rear addition including interior alterations to existing dwelling. Demolition of front sunroom and rear addition. New house by way of renovation.
190 m away · filed Sep 2, 2026 · Accepted
56 Wolcott Ave · Minor variance
To construct a new detached three-storey dwelling. Cross reference Consent and Minor Variance applications B0010/25SC & A0055/25SC being considered jointly.
220 m away · filed Mar 10, 2025 · Application withdrawn
56 Wolcott Ave · Minor variance
To construct a new detached three-storey dwelling. Cross reference Consent and Minor Variance applications B0010/25SC & A0054/25SC being considered jointly.
220 m away · filed Mar 10, 2025 · Application withdrawn
56 Wolcott Ave · Consent
To obtain consent to sever the existing lot into two new residential lots. Cross reference Minor Variance applications A0054/25SC & A0055/25SC being considered jointly.
220 m away · filed Mar 10, 2025 · Application withdrawn
67 Mystic Ave · Minor variance
To construct a new two storey detached dwelling.
170 m away · filed Feb 8, 2023 · Approved
51 Mystic Ave · Consent
To sever the property into two residential lots with both lots to be developed with a two storey, detached dwelling requiring variances to the Zoning By-laws.Cross-Reference Minor Variance Applications: A0037/23SC and A0038/23SC. NOTE: The consent application and the minor variance applications will be jointly considered by the Committee of Adjustment.
230 m away · filed Dec 22, 2022 · Refused
51 Mystic Ave · Minor variance
To permit the construction of a new, two-storey detached dwelling. Cross-Reference Consent application B0004/23SC and Minor Variance application A0037/23SC. NOTE: The consent application and the minor variance applications will be jointly considered by the Committee of Adjustment.
230 m away · filed Dec 22, 2022 · Refused
51 Mystic Ave · Minor variance
To permit the construction of a new, two-storey detached dwelling. Cross-Reference Consent application B0004/23SC and Minor Variance application A0038/23SC. NOTE: The consent application and the minor variance applications will be jointly considered by the Committee of Adjustment.
230 m away · filed Dec 22, 2022 · Refused
From the City of Toronto’s open data: building permits (active, and cleared since 2017), Committee of Adjustment applications and address points, this record updated Sep 29, 2026, and the development sites from its Development Applications data. Contains information licensed under the Open Government Licence – Toronto. Construction cost estimates and contractors’ names are left out on purpose, and nothing here names an owner.