Vol. XVII Spring 2026 N° 04 Toronto · Port Carling · Wellington

Halcyon &Mercer

Private residential representation Established 2009 Member, Toronto Regional REB

A Letter from the Desk

To our list,

The first three months of 2026 have been the firm's most considered. We have closed eleven mandates, declined twenty-three, and added six to our private register. What follows is a selection of currently represented properties — the public inventory of our spring book — alongside the field notes that have emerged from the work.

Most of what we represent is not on this page. Most of what is moving in our markets is not in the news. If either matters to you, the conversation is the unit of work.

— V. H. & A. M. Toronto · April 2026

$0.0B

Transaction volume since 2018

0

Active mandates · Spring 2026

0

Regional practices

0

Years operating

The Register

Currently represented.

Spring 2026 · Eight properties from our publicly listed inventory. An additional fourteen mandates are held privately.

01 142 Forest Hill RoadToronto · Forest Hill Edwardian estate · 1912, restored 2019 $8,250,000 6BD · 5BA · 7,200SF → 02 Penthouse 49 · 1 St. Thomas StreetToronto · Yorkville Half-floor residence · S & W exposure $5,495,000 3BD · 4BA · 3,840SF → 03 1247 Lake Joseph RoadMuskoka · Lake Joseph Lakefront contemporary · 412 ft frontage $11,900,000 5BD · 6BA · 8,100SF → 04 89 Bridge Street WestPEC · Bloomfield Heritage farmhouse · 11.3 acres $3,150,000 4BD · 3BA · 4,500SF → 05 24 Maple AvenueToronto · Rosedale Georgian revival · ravine lot $7,800,000 5BD · 5BA · 6,900SF → 06 Lot 17, Beaumaris RoadMuskoka · Beaumaris · Off-market Three-structure compound P.O.R. 7BD · 7BA · 9,400SF → 07 312 Old Orchard RoadPEC · Wellington Architect-designed · Williamson Williamson, 2022 $2,795,000 4BD · 4BA · 3,800SF → 08 316 Walmer RoadToronto · The Annex Restored Victorian $4,395,000 5BD · 4BA · 4,800SF →
View the full register
“

The market for considered residential property has never required more discretion — or rewarded it more reliably.

Vivian Halcyon · Founding Partner

The Practice

Three regions, one firm.

A deliberate footprint. Each region principal-led, each market covered for at least a decade.

I

Toronto

Heritage estates and discreet penthouse residences across the city's most enduring postal codes — Forest Hill, Rosedale, Lawrence Park, Yorkville, The Annex.

14 mandates Vivian Halcyon → II

Muskoka

Lakefront compounds along Lakes Joseph, Rosseau, and Muskoka. A private register of cottages held in family trust for two and three generations.

9 mandates Andrew Mercer → III

Prince Edward County

Restored farmhouses, working acreage, and architect-led builds in Wellington, Bloomfield, and Picton — covered since 2014.

11 mandates Andrew Mercer →
Explore regional practice

Field Notes

Quarterly observations.

Plain language, no forecasts we can't defend, written for clients who already know the market.

  1. No. 04 Why Muskoka's $10M threshold has quietly become the new floor. 8 min · April 2026
    Vivian Halcyon     →
  2. No. 03 The provenance premium: what heritage buyers will pay for a story. 12 min · March 2026
    Andrew Mercer     →
  3. No. 02 Prince Edward County's slow inheritance. 10 min · February 2026
    H&M Research     →
Read all field notes

The Partners

Principal-led.

Every mandate is the personal responsibility of one of our two partners. Never delegated to associates.

Vivian Halcyon

Founding Partner

Vivian Halcyon

Toronto heritage practice. Founded the firm in 2009 after a decade as principal at one of Toronto's oldest architecture-focused brokerages. Holds a Master's from the Bartlett (UCL).

Read fuller bio →
Andrew Mercer

Managing Partner

Andrew Mercer

Muskoka and PEC practices. Joined as managing partner in 2014 following twelve years in M&A advisory at Scotia Capital. Closed in excess of $480M since 2018.

Read fuller bio →
About the firm

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