Off-Market UK Property Sourcing · London

Buy well. Sell quietly.
Decide on evidence, not promises.

Start here

One honest conversation.
No cost, no obligation.

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Anyone can send you a property. We send you the proof. Whether a deal comes from letters to owners, quiet instructions, or hiding in plain sight online, it reaches you only after twenty-plus checks, with the whole picture in writing, including what could go wrong. Buyers and partners get opportunities worth their time. Owners get a quiet, certain sale. Wherever in the world you are, you see the truth first, then you decide.

No obligation  ·  Transparent fee  ·  No mass mailing lists  ·  Unsubscribe any time

100%

Checked before you see it

48hr

From found to fully checked

20+

Checks on every single deal

Eliseo Boyon, founder of Quantum Brick Ltd

Eliseo Boyon · Founder

01 · A Note From the Founder

I put my name on every pack.
That should tell you something.

Quantum Brick is a young company, and I won't pretend otherwise. But a business built on one rushed deal isn't a business, it's a countdown. I would rather grow slowly on deals that hold up than quickly on deals that don't.

My background is in systems and careful process, and I've brought that into property on purpose: the same twenty-plus checks on every deal, every assumption written down, and a hand-picked network of solicitors, brokers, surveyors and agents, all answering to one accountable person. Me.

Six kinds of people come to us. Here is the promise, in plain English:

  • 01

    Investors & landlords: deals arrive already checked, so your evenings go on deciding, not searching.

  • 02

    Family offices & syndicates: paperwork your board can trust, every number traced to its source.

  • 03

    JV & capital partners: roles, returns and risks agreed in writing before any money moves.

  • 04

    Sellers: a quiet, certain sale to buyers who can actually complete, for a fee agreed in writing before we start. No sale, no fee.

  • 05

    Overseas buyers: evidence you can check from your own desk, and one name in London handling everything.

  • 06

    First-time buyers: your first home from a 5% deposit, every incentive declared, one person answering for the whole thing.

Whichever one you are, the same discipline applies. The first conversation costs nothing and commits you to less.

Eliseo Boyon

Founder, Quantum Brick Ltd · London

02 · Who We Act For

From where you are
to where you're trying to get.

Six kinds of people come to Quantum Brick, from London and well beyond it. Each gets the same discipline, applied to a different problem.

01 · I'm an

Investor /
Portfolio Landlord

An investor in a book-lined study reading an open Quantum Brick investment deal pack

Before

Evenings lost on Rightmove. Deals that look fine until you run the real numbers. No time to source, and no way to verify what sourcers send you.

With Quantum Brick

Opportunities that fit your criteria, off-market or hiding in plain sight, land in your inbox already checked with the evidence attached. You spend your time deciding, not digging.

02 · We're a

Family Office /
Syndicate

Three professionals examining investment documents and charts around a mahogany boardroom table

Before

Placing serious money needs serious checking, and most sourcing packs wouldn't survive five minutes in front of your board or advisers.

With Quantum Brick

Packs you can take straight to your broker, lender or board: every scenario modelled, every number traced to its source, every risk in writing, discretion throughout.

03 · I'm a

JV / Capital
Partner

Two joint venture partners signing an agreement at a desk beside rolled architectural site plans

Before

You have capital or capability, but it's hard to find the right structured opportunity with a partner who documents everything properly.

With Quantum Brick

Joint ventures, lease options and staged purchases set up alongside professional advisers, with roles, returns and risks agreed in writing before anyone commits a pound.

04 · I'm a

Vendor /
Developer

A homeowner handing over brass keys at the front door of a Victorian brick terraced house

Before

Public listings, broken chains, tyre-kickers and months of wasted viewings, when what you need is a quiet, certain sale.

With Quantum Brick

Your property is shown privately to a small number of checked buyers who are ready to move and genuinely want what you have. Quiet, fast, certain.

05 · I'm an

International /
Overseas Investor

An investor reviewing a bound property document at a desk in a high-rise apartment at dusk, city skyline behind

Before

The good UK stock never reaches the overseas exhibitions. What does reach you carries a distance premium, and every step from proof of funds to completion happens six time zones from anyone accountable.

With Quantum Brick

Evidence you can check from your own desk in Dubai, Hong Kong or Singapore, your full overseas costs worked out before you commit, and one name in London handling everything until keys.

06 · I'm a

First-Time
Buyer

A modern UK new-build development street with brick and render family homes, young trees and landscaped verges

Before

Rent that would cover a mortgage, but a 10 to 15% deposit keeps the front door years away while prices move without you.

With Quantum Brick

New-build homes that qualify for 5% deposit mortgage routes, developer incentives negotiated for you and always declared, and one person on the phone from first call to completion.

03 · Why This Exists

“A sourcer only gets paid when you buy. So the most useful thing we can tell you is when not to.”

Here's what we kept seeing in UK property: glossy deal sheets with hopeful rents, repair budgets plucked from thin air, and “bargain” claims with no proof attached. People were being sold excitement, then left alone with the consequences.

So we built Quantum Brick to work the other way round. We start with the hard questions. What would a surveyor say? What if the building work costs 20% more than planned? What if prices fall? A deal only reaches you once it has answers.

And you get the full working, not just the conclusion. Check our numbers. Question them. That's exactly why we show them.

04 · The Deliverable

This is what lands
in your inbox.

  • i.

    All the numbers. What you pay, what the work costs, what the fees are, and what's left for you at the end.

  • ii.

    Proof of value. Five homes nearby that actually sold, and what three named local agents say it will rent for. Not “similar properties in the area.”

  • iii.

    The way out. How you get your money back out, and the honest numbers if prices fall 10% or the work runs over. You see the bad case before you commit, not after.

  • iv.

    The risks, in writing. Every deal has them. Ours are listed, not buried.

  • v.

    Our fee, upfront. You know exactly what we earn before you decide anything.

Take it to your broker. Show it to your solicitor. That's what it's for.

Selling instead? This pack is what your buyer receives, and it's why our sales complete instead of falling apart.

Specimen · Illustrative

Deal Pack · Example Format

3-Bed Terrace · BRRR
North West England

Asking price£142,000
Agreed price (direct-to-vendor)£126,500
Refurbishment (itemised, +10% contingency)£24,200
Purchase costs, fees & finance£11,300
End value · 5 sold comparables attached£195,000
Rental appraisal · 3 agent opinions£925 pcm
Exit · Refinance & holdModelled ✓
Downside · Market cools 10%Still viable ✓
Risk register & disclosuresPages 6-8

Specimen for format illustration only. Not a live opportunity, an offer, or financial advice. Every real pack carries deal-specific figures, sources and disclosures. Always take independent advice.

A bound Quantum Brick investment deal pack on a walnut desk, beside a brass fountain pen and reading glasses
The pack, as it arrives. Clear, complete, signed.

05 · How It Works

Five steps.
You're in control at every one.

  1. 01

    We talk first

    One honest conversation about what you're trying to do, whether that's buying, selling or partnering. No forms pretending to be relationships.

  2. 02

    We find and filter hard

    Letters to owners, agents who call us first, and street-by-street research. Most of what we see never makes the cut.

  3. 03

    The deal earns its pack

    Full numbers, proof of value, costed work and honest risks, written up only once a deal survives the checking.

  4. 04

    You decide, on evidence

    The pack reaches the few people it genuinely fits. Question everything, then take it to your own solicitor and broker.

  5. 05

    Supported to keys

    We chase the solicitors, brokers and agents so you don't have to. One name answers for everything, until the keys are in the right hands.

06 · The Deal Network

Vetted deals find you.
You decide, deal by deal.

For buyers, partners and overseas investors alike: tell us what you're building and where. Nothing is sent until we have something that genuinely fits it, so you'll hear from us less often than you expect, and it will be worth opening when you do.

01

We speak, so we understand your strategy rather than guessing at it.

02

Packs arrive only when a deal survives checking and matches your criteria.

03

You pass or proceed. No chasing either way.

Best way to reach me

07 · The Offer

One transparent fee.
Nothing until you proceed.

Joining the network, receiving deal packs, and every conversation along the way costs you nothing. A sourcing fee applies only when you choose to proceed with a deal, and you'll have it in writing before any commitment.

Buyers: fees start at £5,000 per deal, quoted individually for the value and work behind it. Partnerships are priced as part of the written agreement, with independent advice on both sides.

Sellers pay nothing at all. Our fee comes from the buyer, and both sides see it in writing.

Your fee includes

Off-market sourcing & negotiation Included
Full deal pack & financial model Included
Comparable evidence & costings Included
Stress-tested exit strategy Included
Coordination to completion Included

Fee starts at

£5,000 per deal

08 · Straight Answers

The questions you
should be asking.

What does it cost me?+
Nothing, until you proceed on a deal. Then a sourcing fee from £5,000, quoted per deal and confirmed in writing before you commit. The fees section sets out exactly what that covers.
How do I know your numbers aren't optimistic?+
Because we show our working. Every pack includes the actual comparable sales, agent rental opinions with names attached, itemised refurb costs with contingency, and a downside scenario. If you find a hole in our numbers, tell us. That conversation makes both of us sharper.
You're a new company. Why should I trust you?+
You shouldn't. Not on our word alone, anyway. That's exactly why everything we present is verifiable: sourced comparables, written disclosures, professional advisers on every transaction, and no pressure to proceed. Judge us on the quality of the first pack we send you. It costs you nothing to look.
How do you find off-market deals?+
Letters and calls straight to owners in the streets we've researched, relationships with agents who trust us with the instruction before it goes public, and developer contacts with units to move quietly. And when a listed property is simply priced wrong, we bring you that too. The value isn't where a deal comes from. It's the twenty-plus checks it survives before you see it.
Am I obliged to take deals you send?+
Never. Review each pack on its merits and proceed only when something genuinely fits your strategy. We'd rather you pass on ten deals than take one wrong one.
How do joint ventures work with you?+
Where a deal suits it, we structure JVs, lease options and staged acquisitions alongside professional advisers, with roles, contributions, returns and risks agreed in writing before anyone commits. Independent legal and financial advice is always required for these structures.
Are you properly registered and compliant?+
Yes. Quantum Brick Ltd operates with written terms and transparent fees, is a member of the Property Redress Scheme (membership no. PRS060512), is registered with the Information Commissioner's Office (registration no. ZC234765), and holds professional indemnity insurance of £500,000. Registration numbers are in the footer. We encourage every client to take independent legal and financial advice.
I'm a vendor. Why sell through you?+
Discretion, certainty and speed. Your property is shown privately to checked buyers who are ready to move. No public listings, no chains, no wasted viewings. Tell us about the property and we'll respond within one working day.

09 · Start the Conversation

Whatever you're planning next
starts with one conversation.

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