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Rockcliffe-Smythe · Toronto

$575,000

The scan

The play: Add units

Finished Bsmt with Sep Entrance signals add-units potential: separate legal unit in basement.

The building stays. It can legally hold more homes than it holds today.

  • Lot 4.6 m x 56.7 m (15'-0" x 186'-0")
  • Detached
TESA ScanZoning

The by-law's answer for this lot

We resolved this parcel's zoning, the site-specific exceptions registered against it, and the building forms the by-law permits without a rezoning. Every number below traces to by-law text we hold on file, and we re-check it against the City's register nightly.

Zone

RM (f12.0; u4; d0.8) (x252)

Site exception

Exception 252, with parts of it still to confirm

As-of-right form

Site-specific Zoning By-law Amendment (Planning Act s.34)

As-of-right envelope

Not available for this lotEnvelope from lot coverage times storeys. FSI does not apply to a houseplex.

Severance

Not supported on this lotA split would leave roughly 2.3 m (7'-6") of frontage per lot, short of what this zone allows.

Still to verify on this parcel

None of these can be settled from records alone. Any one of them changes what this lot can hold.

  • Whether an apartment building could be argued here, which the by-law does not allow without a rezoning
  • The front yard setback is averaged against the neighbouring houses, so it depends on buildings that have to be measured on site
  • Which lot coverage rule governs here, which sets how much of the lot the buildings can sit on
  • Lot dimensions and area against a current survey, not the listing sheet
  • Easements, rights of way and restrictive covenants registered on title

And more, depending on what the site turns up.

Have TESA check this lot properly

Zoning scan 2026-08-28

TESA ScanBuildability

A quick pass over the mapped layers, kept here for comparison. Where it disagrees with the zoning answer above, go with the zoning answer.

What is standing, and what is permitted

A house stands here and the by-law allows more. Below is what is already built, the as-of-right envelope on the same lot, and the gap between them, which is the part you are buying. It is a starting envelope, not a massing study.

Lot area

259 m² (2,790 ft²)Calculated from the listed frontage and depth.

Storeys

3

Height limit

11 m (36.1 ft)

Permitted envelope

Not available for this lot

Room to add

Not available for this lot

Zone

RM

Zone min. frontage

12 m (39.4 ft)

Zone max. units

4

The zoning label carries a density figure, but floor space index does not apply to a detached or semi-detached houseplex (By-law 648-2025). No lot-coverage cap resolved here either, so quoting an envelope would mean applying a standard that does not govern this building type. What actually caps the building is setbacks and building depth, which a TESA scan resolves from the by-law.

Add a garden suite

By-law 849-2025 s.11

A garden suite is a separate allowance, not counted into the main building's floor area. Its own cap is 60 m² over one storey or 120 m² over two. With a suite on the lot, coverage follows one of two by-law options, and which one is the applicant's choice.

Garden suite: 120 m² (1,292 ft²), 6.3 m tall, 7.5 m from the main building

Option A · all buildings at 45%

Main building
170 m² (1,829 ft²)
Main plus suite
290 m² (3,121 ft²)

Option B · main on the overlay, ancillary at 20%

Main building
Not available for this lot
Main plus suite
Not available for this lot

The main building has no coverage cap under Option B here, so its size is set by setbacks rather than a percentage.

What binds it

  • Archaeological potentialStudy before ground

    An archaeological assessment is required before soil is disturbed. It is a cost and a schedule item, and it does not stop a demolition.

  • Ravine and natural feature protectionRestricts the envelope

    Protected ravine control. Often the difference between a buildable rear yard and a protected one.

  • TRCA regulatedRestricts the envelope

    Conservation authority permit territory. Expect a permit and supporting studies before a building permit.

The rest of this listing

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Listing courtesy of SUTTON GROUP-ADMIRAL REALTY INC..

This information is provided by the Toronto Regional Real Estate Board through PropTx and is deemed reliable but is not guaranteed accurate by PropTx.

The information provided herein must only be used by consumers that have a bona fide interest in the purchase, sale, or lease of real estate and may not be used for any commercial purpose or any other purpose.

Listing updated Aug 26, 2026, 5:54 PM ET · Source: Toronto Regional Real Estate Board