London property. Properly campaigned.

AS FEATURED INThe TimesRead the feature ↗

A home. A question. Start here.

Find your next home. Ask about selling. Get to know KnokKnok.

The way people buy homes has changed. Estate agency should too.

Buyers scroll before they search. They care about lifestyle, not just layout. They want to feel something—not simply view something.

KnokKnok pairs the standards of a private office with the creativity of a campaign studio, led personally by founder Mark Breffit.

Why KnokKnok →
Stucco houses in Belgravia, Prime Central London

Chelsea · Belgravia · Prime Central London

Distinctive homes.
Personally represented.

Local judgement, considered exposure and a campaign led by Mark Breffit. Begin with the home and the move you want to make.

Explore our prime London approach ↗

One standard of service. Three ways to work together.

01

Sell

A tailored launch campaign for your home: cinematic film, editorial storytelling, targeted social distribution and expert negotiation.

Request a valuation ↗
02

Buy

Discover the homes in our collection. Explore the photographs, find your kind of London and speak directly to Mark about your next move.

Explore homes ↗
03

Collaborate

See what we could create together. Film, editorial storytelling and social reach, with a personal approach to every property campaign.

See our marketing ↗

Homes with a story.

Explore all our homes ↗
Holland Park private residence
Private instructionHolland Park · W11

A landmark London residence.

11,765 sq ft · Main house and mews

Guide price£36m
Enquire discreetly ↗

A record that travels across the market.

The same founder-led care, creative energy and serious negotiation—whether the brief is a much-loved family home or a discreet global trophy asset.

Caroline Terrace, Belgravia, SW1W
Exchanged
KnokKnok result

Belgravia, SW1W

Caroline Terrace

£4.1m
On the market
Mark’s career record

London, W11

Holland Park

£36m
Exchanged
KnokKnok result

Clapham, SW2

Wingford Road

£1.125m
Private
Private
Private instruction

Off-market instruction

Belgravia

£100m

Career track record includes transactions and instructions handled by Mark before founding KnokKnok.

People don’t fall in love with a floorplan.

Every KnokKnok campaign is designed for the way buyers actually discover homes now: cinematic film, short-form social, founder-led tours and a story worth sharing.

KnokKnok campaign filmWatch more on Instagram ↗

Property stories reaching audiences across the UK, US, Middle East and Australia. Every property is a campaign, not a listing.

Explore our reach

Before your next move

A good sale starts
with the right questions.

Explore all seller guides

A publication by KnokKnok

London, with a point of view.
Mark Breffit, founder of KnokKnok Real EstateFounder-led. Always.

Thirteen years inside the industry. One clear idea for changing it.

After working for Knight Frank and Hamptons Private Office—selling everything from family homes in South West London to properties in excess of £70m—Mark Breffit decided to build the agency he felt the market was missing.

“We won’t just list. We’ll launch your home like it’s a brand.”
Talk to Mark ↗Meet the founder →

Selected signals from a career spent positioning London homes with precision.

01 / Career record£70m+Mark’s career sale experience
02 / Experience13+Years across prime and South London
03 / ReachLondonPrime, South West and South East
04 / Service1:1Founder-led service and direct access
“

Selling our flat from overseas felt incredibly daunting, but Mark made the entire process as smooth and stress-free as possible. Communication was exceptional throughout.

Mea StanfieldSeller · July 2026
Read our Google reviews ↗

What could your home become?

Give us the basics. Mark will come back personally with an honest first view—not an automated valuation and not a call-centre script.

Not sure where to start?Build your first campaign outline. Six questions, no email required. →
01 · Your property02 · Your details
Two short steps. A personal conversation about price, presentation and your next move. No obligation.
Prefer a conversation?Call MarkWhatsApp ↗
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