A collaboration between AD100 designer Julie Hillman and architectural firm Ferguson & Shamamian has yielded a Park Avenue duplex defined by uncompromising artisanal detail. Reported in October 2026, the residence elevates bespoke residential design through custom elements ranging from glass furniture supports to tactile wall finishes.

Architectural Proportions and Flow
The foundation of the residence relies on the classic spatial hierarchy characteristic of landmark Park Avenue buildings. Working alongside Ferguson & Shamamian, the architectural intervention focused on refining the internal proportions to create a seamless dialogue between formal entertaining spaces and private quarters. Every threshold, moulding and ceiling height was calibrated to support a sophisticated art and furniture collection.
Rather than imposing a radical modern layout, the architectural strategy respects the traditional envelope while modernising the infrastructure. Natural light is channeled effectively through restored and enlarged window apertures, illuminating gallery spaces that serve as the connective tissue of the duplex.
Uncompromising Materiality
Julie Hillman’s interior scheme is distinguished by an intense focus on custom fabrication and rare materials. Eschewing off-the-shelf luxury, the designer commissioned bespoke pieces where ordinary structural components are reinterpreted as art objects. Notable examples include custom seating featuring cast-glass legs and bedroom storage concealed behind doors upholstered in embroidered cashmere.
The material palette balances tactile warmth with rigorous geometric restraint. Silk velvet, patinated bronze, unmarked timber and custom plasterwork feature prominently throughout the rooms. Each surface has been curated to invite physical interaction, proving that high-end residential interiors can remain liveable while executing highly complex artisanal techniques.
The Collaboration of Architecture and Interior
The success of the duplex stems from an integrated approach where the interior architecture and decoration were conceived concurrently. Ferguson & Shamamian established the architectural volumes with a traditional sensibility, allowing Hillman to layer texture and contemporary furnishings without visual competition.
This methodology reflects a wider shift in prime real estate development, where high-net-worth buyers increasingly demand turnkey properties that are entirely bespoke. By engaging top-tier design talent to execute custom elements down to the hardware and textiles, such residences achieve a level of individualisation that standardized luxury developments cannot replicate.
- Incorporate custom artisanal elements, such as cast glass or embroidered textiles, to elevate standard joinery and furniture.
- Ensure interior design and architectural planning occur concurrently to maintain consistent proportions and material flow.
- Balance heavy tactile textures like cashmere and velvet with clean architectural lines to avoid visual clutter.
- Invest in bespoke millwork and hardware tailored specifically to the spatial dimensions of historic properties.
Properties along Park Avenue command exceptional baseline valuations due to scarcity and historical prestige. However, standard luxury renovations often struggle to stand out in a competitive upper-tier market. As reported in design circles, comprehensive collaborations with AD100 talents and established architectural firms like Ferguson & Shamamian significantly enhance liquidity and asset appeal. While highly customized interiors reflect the specific taste of an owner, top-tier craftsmanship consistently protects capital by appealing to discerning international buyers who prioritize move-in-ready provenance over renovation potential.
Relaterede læsninger
In This Exquisitely Detailed Duplex the Sofa Legs Are Made of Glass and the Closet Doors of Embroidered Cashmere (Architectural Digest, 15 Oct 2026)
Kilder og krediteringer
- Feature: In This Exquisitely Detailed Duplex the Sofa Legs Are Made of Glass and the Closet Doors of Embroidered Cashmere — Architectural Digest. Linked, not reproduced.
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