Summerside II, 10-30 Mendelssohn St: Mattamy Low-Rise Near Warden

Summerside II is a low-rise condominium that most buyers find by accident, on a quiet street off Warden Avenue near St Clair. It is four storeys and 141 suites, the second phase of a Mattamy community, and it offers something Scarborough towers rarely do: a small building with a lean fee. The catch is that the fee is lean because you pay more of the bills yourself. I’m Jatin Dua, RE/MAX Quantum Realty.

Phase two of a planned low-rise community

Summerside was built in phases. Summerside I covers addresses on Tranter Trail, Ayers Crescent, Gerigs Street and the other half of Mendelssohn Street, and CondoInvestments.ca lists it as a four-storey, 108-suite Mattamy project from 2009. Summerside II at 10 to 30 Mendelssohn is the second phase, with 141 suites, under its own corporation, TSCC-2032.

The two phases look and feel like one neighbourhood, but they are separate corporations with separate budgets and reserve funds. If you are choosing between a suite in Summerside I and one in Summerside II, compare both status certificates rather than assuming they are run the same way.

Mattamy is best known for large suburban subdivisions, and Summerside has that planned-community feel: consistent streetscapes, internal streets and a scale closer to a townhouse neighbourhood than a tower block.

Two formats under one corporation

Suite numbering suggests that Summerside II mixes formats. Number 10 has suites in the 100s through the 400s, which reads as a four-storey apartment building, while number 30 carries low two-digit suite numbers, which is typical of condo townhomes. Condos.ca records suites from about 300 to 1,092 square feet.

That range covers very different homes. At the small end is a studio; at the large end is a three-bedroom with family-sized rooms. Current listings run from one-bedrooms in the 600s of square feet to a three-bedroom, so this is one of the few low-rise buildings in the area where a growing family can stay put.

Ask which format you are looking at before you look at price. An apartment-style suite with an elevator and a townhome-style suite with its own entry and stairs sell to different buyers, and the fee, the utility set-up and the outdoor space often differ between them.

The small end deserves its own warning. A suite near 300 square feet in a low-rise building is unusual, and it will sell to a narrow group of buyers: students, single owners and investors. If you are buying one, buy it because the price works for you today, and be realistic that resale may take longer than for a one- or two-bedroom.

A short fee list, and the bills you pay yourself

The fee here covers common elements, building insurance and parking. Heat and water are not on condos.ca’s inclusion list, which usually means each suite has its own meters. Across the five current listings, fees work out to about $0.77 per square foot, but they range widely, from under $300 to over $900 a month, which reflects how different the suites are.

When you compare Summerside II with a high-rise where heat and water are in the fee, add your own utilities back in. A suite that looks cheaper on the fee line can cost about the same once a winter heating bill is counted.

The amenity list is modest: a party room, a meeting room, visitor parking, an underground garage and a security system. Condos.ca lists a pet restriction, so read the declaration and rules yourself if you have a pet. With few shared facilities, there is less to maintain, but the garage remains one of the larger long-term costs.

Parking is one line on the fee list that works in your favour. It is included, and in a low-rise community with an underground garage, a space that comes with the suite saves you a monthly charge you would pay at many newer buildings. Confirm the space, and any locker, in the status certificate and the agreement.

St Clair and Warden, between two transit lines

Mendelssohn Street sits in the Clairlea-Birchmount area near St Clair Avenue East and Warden Avenue, a mature part of southwest Scarborough with established residential streets around it. Life here is quieter and lower-rise than at Scarborough Centre.

Two things are changing nearby. Line 5 Eglinton began service on 8 February 2026, running east to Kennedy Station. And the City’s Golden Mile Secondary Plan study covers about 113 hectares along Eglinton between Victoria Park Avenue and Birchmount Road, intended to turn a strip of plazas and big-box stores into a mixed-use district with homes.

For owners here, that means more shops and services to the north over time, plus construction along Eglinton while it happens. The data panel on this page shows the nearest subway and GO stations, schools and parks to Mendelssohn Street.

Pricing: about $593 a square foot

Condos.ca puts Summerside II’s average at about $593 per square foot. That is below the Scarborough Centre towers I have reviewed, such as EQ1 at about $617 and EQ2 at about $651, and in line with what I would expect for a 2009 low-rise with owner-paid utilities.

The five current listings ask $399,900 to $640,000. That spread is wide because the building is: studios, one-bedrooms, two-bedrooms and a three-bedroom are all represented, and townhome-style suites usually command more per suite than apartment-style ones.

For the real traded numbers, use the 12-month data panel on this page. In a mixed-format community, make sure any comparable you rely on is the same format as the suite you are buying. My building sold report can sort that out for you.

Building specifications

Amenities at Summerside II

There is no gym, pool or concierge, so this is a building where the suite and the street do the work. The party and meeting rooms cover the occasional gathering, and underground parking is a genuine convenience in a low-rise community.

Jatin’s honest take on Summerside II

Summerside II — frequently asked questions

Looking at Agincourt, L’Amoreaux, Milliken, Dorset Park and Wexford in Scarborough more broadly? Start with my Toronto community guide — the neighbourhoods, what each pocket is like, and how they compare.