Off-market
Curated global portfolio · 2026 edition
Extraordinary residences, shaped by form & light
Architectural estates, modernist sanctuaries and discreet off-market acquisitions, curated worldwide.
- Transacted since 2008
- $4.2B+
- Global enclaves
- 18
- Discreet protocol
- 100%
Exclusive curation
Featured acquisitions
A rotating selection of architecturally significant homes, several available only through private introduction.
Off-market
Trophy asset Chelsea, New YorkMerrow & Lisle
The Highline Penthouse
$18,900,000
- Bedrooms
- 4
- Bathrooms
- 5
- Interior
- 6,200 ft²
New
Tribeca, New YorkFenwright Workshop
Franklin Street Loft
$11,750,000
- Bedrooms
- 3
- Bathrooms
- 3
- Interior
- 4,300 ft²
Architectural taxonomy
Curated by architectural movement
Residences organised not by postcode, but by spatial philosophy, structural honesty and material mastery.
Modernist precision
Concrete & Glass
Monolithic forms, thermal mass and uninterrupted horizons.
7 residences1945 – 1969 heritage
Mid-Century Restorations
Post-and-beam icons returned to their original intent.
4 residencesRegenerative living
Biophilic Sanctuaries
Homes that dissolve the line between interior and landscape.
3 residences
Seraphine Aldercott
Managing Principal, Private Advisory
- Transacted volume
- $4.2B+
- Global territories
- 14
Discreet client protocol
Unlisted. Confidential. Exclusively yours.
Over 68% of the world’s most significant trophy estates trade entirely off-market. Our private desk manages acquisitions for family offices, art collectors and institutions with total discretion.
How our private advisory worksThe monograph
Perspectives on architecture
Interiors 2 min read
The Quiet Kitchen: Why the Best Homes Hide Their Appliances
The most sought-after kitchens today are designed to disappear, and they cost more to build than any showpiece.
Architectural philosophy 2 min read
Light as Material: How Ando’s Concrete Masterpieces Reshape Luxury
An examination of structural emptiness and the deliberate choreography of daylight.
Global capital 2 min read
The 2026 Prime Cities Index: Architectural Trophy Allocation
Why ultra-high-net-worth buyers are treating design pedigree as a hard asset.
Ostrelle dispatches
The Solstice Monograph
Bi-annual private portfolios featuring unreleased architectural monographs and members-only viewings. Zero unsolicited marketing.