Our Expertise
A Complete Spectrum
of Luxury Services
From discreet private acquisitions to global investment advisory, every service is delivered with the precision and discretion the world's most demanding clients expect.
Schedule a Private ConsultationWhat We Do
Six Disciplines. One Standard of Excellence.
Each service has been refined over four decades into a methodology that is without equal in the ultra-luxury market.
Find the Estate That Could Never Be Found
Our acquisition mandate process begins with a confidential briefing — understanding not just property requirements, but the lifestyle, legacy, and investment philosophy of our client. We then deploy our private network across 12 countries to surface inventory that simply does not exist in the public market.
- Dedicated senior advisor assigned from day one
- Access to 180+ unpublished off-market listings
- Full legal, structural, and architectural due diligence
- Price negotiation with absolute confidentiality
The Most Discreet Representation in the Market
When you are selling an extraordinary property, the wrong exposure can be as damaging as no exposure. Our private sales methodology identifies and approaches pre-qualified buyers directly, ensuring your property reaches the right audience without ever entering the public domain.
- Buyer pre-qualification before any property disclosure
- NDA-protected marketing to our global network
- Bespoke property presentation materials
- Average time-to-close: 94 days (vs. industry 180+)
Residences That Perform While You Are Away
Whether you are seeking a seasonal villa for three months or a permanent pied-à-terre in a city you visit twice yearly, our leasing division curates arrangements that match exactly — in location, standard, and discretion. For owners, we manage tenanting and property oversight with the same white-glove approach.
- Short-term (1 week+) and long-term arrangements
- Staff placement and property management services
- Tenant screening and background verification
- Lease structuring across multiple legal jurisdictions
Real Estate as a Strategic Asset Class
Our investment advisory team, led by a former Goldman Sachs Managing Director, treats trophy real estate as what it is: one of the most resilient and prestigious asset classes available to the ultra-high-net-worth investor. We advise sovereign wealth funds, family offices, and private individuals on portfolio construction, risk management, and market timing.
- Portfolio construction across 12 prime markets
- Currency-diversified acquisition strategies
- Off-market deal sourcing with proprietary intelligence
- Reporting aligned to institutional investment standards
Beyond the Transaction — A Life Well Managed
Acquisition is only the beginning. Our concierge division ensures your property runs as flawlessly as the transaction that secured it. From sourcing household staff and overseeing interior design to coordinating annual maintenance schedules, we handle every detail so you never have to.
- Interior design partnerships with world-class studios
- Household staff sourcing, vetting, and placement
- Property management across all international holdings
- 24/7 emergency concierge line for all active clients
Decisions Informed by Intelligence No One Else Has
Our proprietary intelligence platform aggregates transaction data, planning applications, demographic shifts, and geopolitical indicators across 47 micro-markets. Clients with active advisory mandates receive quarterly briefings covering pricing trends, emerging opportunities, and recommended portfolio adjustments.
- Quarterly market briefings across all active mandates
- Proprietary pricing model for 47 tracked micro-markets
- Early-signal identification of emerging luxury destinations
- Competitive intelligence on private sale comparables
How We Work
The Client Journey
Every Onyx engagement follows a four-stage process designed to deliver certainty at every step.
Private Consultation
A confidential briefing with a senior advisor to understand your vision, requirements, timeline, and financial parameters. No obligation, no public disclosure.
Curated Selection
Within 14 days, we present a bespoke selection of properties or buyers from our private network — none of which you will find elsewhere.
Precision Execution
Our legal, financial, and architectural teams manage every aspect of due diligence, negotiation, and structuring — protecting your interests at every stage.
Ongoing Care
The relationship does not end at closing. Your dedicated advisor remains available indefinitely, supported by our concierge and management infrastructure.
The Onyx Difference
Why the World's Most Discerning Clients Choose Us
We are not the largest firm. We are not the most visible. We are, by design, the most exclusive — and that exclusivity is what makes us uniquely capable of serving those who demand it.
We do not take unsolicited mandates. Every client relationship begins with a referral or a personal introduction from our existing network.
Every client is assigned a principal-level advisor with a minimum 15 years of ultra-luxury transaction experience.
We operate as a pure advisory firm. No developer relationships, no commercial incentives — only your best interests.
Every engagement is protected by an NDA executed at first contact. Your identity, intentions, and transactions remain entirely private.
Results That Speak
Transaction Case Studies
Three illustrative examples of how our services have delivered results that exceeded client expectations.
The Off-Market Penthouse
A European family sought a primary New York residence. After six months with another agency, no suitable property had been found. Onyx identified and secured an off-market penthouse — never listed publicly — within 32 days of mandate.
The Cliffside Villa
A titled European family needed to discreetly divest a Riviera estate without public knowledge of the sale. Onyx conducted a fully NDA-protected campaign, approaching 14 qualified buyers across three continents. Sold in 67 days at full asking price.
The Trophy Portfolio Build
A Middle Eastern family office sought to diversify a $200M allocation into physical real estate across three continents. Onyx structured a six-property portfolio spanning New York, Monaco, and Dubai — all acquired off-market within a 14-month window.
Questions
Frequently Asked Questions
Answers to the questions our new clients most commonly ask before engaging our services.
Speak to an AdvisorHow does the onboarding process work?
Every engagement begins with a confidential call or in-person meeting with a senior advisor. We listen, we ask, and we determine whether we are the right firm for your needs. If we are, we execute a mutual NDA and proceed to mandate discussion.
Do you work with buyers only, or sellers too?
We work with both buyers and sellers, as well as investors and lessees. Each mandate is handled separately with dedicated advisors to ensure there is never a conflict of interest between the two sides of any transaction.
What is the minimum transaction size?
Our acquisition mandates typically involve properties valued at USD $10 million and above. For investment advisory mandates, we typically engage on allocations of USD $25 million or greater.
Can you represent clients in jurisdictions outside your office locations?
Yes. We have operated in over 40 countries through a combination of our own advisors and a carefully vetted network of exclusive local representatives. No market is out of reach.
How do you protect client confidentiality during a sale?
All buyers are pre-qualified and required to execute an NDA before any property details are disclosed. We have never experienced a confidentiality breach in 40 years of operation.
What fees do you charge?
Our fees are discussed in full transparency during the initial consultation and are structured as a percentage of transaction value. We never charge upfront retainers for standard acquisition or sale mandates.
Begin
Your First Consultation is Private and Without Obligation
Tell us your vision. We will tell you what is possible.