• Glass-walled modern house lit up at dusk Beverly Hills $35MM
  • Sculptural dining chair under a pendant light Aspen $16MM
  • White modern villa above a long pool Montecito $29MM
  • Bedroom opening onto a terrace at sunset Malibu $42MM
  • Classical estate mirrored in its pool Palm Beach $24.5MM
  • Sunlit living room with sculptural lounge chairs Bel Air $38.5MM
  • Infinity pool edge and palms at sunset Key Biscayne $27MM
  • Curving staircase with a carved railing Upper East Side, NYC $21MM
  • Lit pool terrace of a modern house at blue hour Palm Springs $8.2MM
  • White kitchen with a marble island and brass trim Greenwich $9.8MM
  • Villa on a cliff above a turquoise cove Laguna Beach $22MM
  • Private wine room lined with oak racks Holmby Hills $55MM

Make the market known.

  • Mediterranean villa behind a long reflecting pool Rancho Santa Fe $14.5MM
  • Stone bathroom with a double vanity Tribeca, NYC $18.5MM
  • Stone balcony framing the sea at dusk Pacific Palisades $31MM
  • Living room with a marble wall and a fireplace Brentwood $17.9MM
  • White mansion entrance with topiaries and palms Coral Gables $12.75MM
  • Sculptural wooden spiral staircase Hollywood Hills $26MM
  • Estate at the end of a long lawn and curved drive East Hampton $48MM
  • Bright living room with a fireplace and gilt mirror Carmel $11.2MM
  • Infinity pool overlooking a bay and islands Tiburon $13.9MM
  • White modern house with a lit path at dusk Miami Beach $24.9MM
  • Lounger at the edge of a pool above the sea Newport Coast $16.8MM
  • Waterfront estate behind a row of palms Star Island, Miami $62MM

A luxury brokerage’s back office working just for you.

Marketing, finance, a mail room and an executive office: a full staff that never sleeps, never misses a deadline and works every one of your listings and deals like it’s the only one.

Marketing

Positioning, creative and launches aimed at the buyers most likely to write the offer.

Chalon Road Bel Air · $38,500,000
Live
Views
12.4K
Agents
38
Showings
9

Finance

Every deal modeled to the dollar, from the gross to what you keep.

Deal financials In escrow
72%kept
Sale price
$21,750,000
Commission
$543,750
Referral fee
−$54,375
Brokerage
−$97,875
Net to you
$391,500
Tigertail Road · day 18 of 30
Signed
Sep 2
Closes
Oct 2
Paid
Oct 6

Mail Room

Every document, signature and deadline, filed from your inbox on its own.

Filed this week Tigertail Road
  • Purchase agreement DocuSign · Sep 30 Signed
  • Seller disclosures Gmail · Sep 29 Filed
  • Preliminary title report Gmail · Sep 28 In review
  • Inspection report SkySlope · Sep 26 Filed

Executive

A chief of staff keeping your week, your clients and your deals moving.

This week Oct 5 – 9
  • Mon5 Buyer call, Chalon Road 10:00 – 10:30 AM
  • Wed7 Appraisal walk-through 11:00 AM – 12:00 PM
  • Thu8 Offer strategy with the seller 2:00 – 3:00 PM
Listings
6
In escrow
3
Volume
$142M

Everything in one place.

Your email, your apps, your brokerage and the whole market, wired in and filed to the right deal on their own. Nothing to copy, nothing to chase, nothing living in two places.

  1. GmailOutlook Your emailEvery thread on a deal, filed to it.
    Re: Tigertail Road, counter signedFrom escrow · 9:41 AM Filed to the deal
  2. zipFormSkySlopeDocuSign Your appsForms, files and signatures, as they happen.
    Purchase agreementSigned in DocuSign · 2 min ago Attached
  3. Your brokerageIts roster, its listings, its letterhead.
    A colleague sold them their last houseYour office · 2021 Your way in
  4. The marketEvery sale, listing and price cut, read each morning.
    Your areas first

Ask it anything.

The research desk every top agent wishes they had. Ask in plain words and get the buyers, the owners and the comps back in seconds, with the way in to each and every answer sourced to the deed, the closing or the article.

Doorbell

Three buyers. Two of them are one introduction away.

  1. Adrian Castellane Bought on Oriole Way, $24.8M Through a colleague Mar 2024
  2. The Ashcombe Family Trust Bought on Blue Jay Way, $31M Nov 2023
  3. Nadia & Theo Ravensworth Bought on Thrasher Ave, $21.5M Through your network Jun 2022

Sources: MLS closings, recorded deeds, 2 press reports

  • Who is selling in Malibu this year?
  • Which trusts own on Carolwood Drive?
  • What did new builds in Brentwood close at?
  • Which of my past buyers might sell?
  • Who represents buyers at $30M and up?
  • Who owns the house next door to my listing?
  • Which founders just had a liquidity event?
  • What sold off-market in Holmby Hills?

Connecting buyers to sellers.

Every great sale starts with knowing who will buy. Doorbell finds them, and your way to them.

Find the buyer before the open house.

Enter an address. Doorbell reads every sale and deed around it to name who is most likely to buy: who bought homes like it at that price, who owns next door, who the press says is looking, and which of your brokerage’s clients fit.

  • Ranked by fit to the house: price, size, place, timing.
  • The person behind every trust and LLC.
  • The shortest way in: who you know who knows them.
Listing Chalon Road, Bel Air $38,500,000 · 7 bd · 11 ba · 16,400 sf · 1.4 ac
  1. 1 The Ashcombe Family Trust Entity Strong 1st
  2. 2 Marguerite & Leon Everleigh Person Strong 2nd
  3. 3 Adrian Castellane Person Strong 2nd
  4. 4 Aldine Capital LLC Entity Qualified 3rd
  5. 5 Sofia Lindqvist Person Qualified 1st
  6. 6 Fairholme 2019 Trust Entity Long shot 3rd
Bought within 10% of asking, 2021 · Owns two doors down · Named in the press

Win the listing before you walk in.

Bring the seller what no other agent will: where the house should list, what sold around it, and the buyers at that price, counted. A report they keep, in your name or your brokerage’s.

  • Nearby sales, with price per foot and date.
  • The buyers at that price, and how many you can reach.
  • Ready in minutes, the night before.
Prepared for the owners · Jonathan Appleseed, Carolwood Estates Chalon Road, Bel Air
Where it should list $36M – $41M
$30M$45M
Sold nearby
  • Stone Canyon Road $41.2M $2,610/sf Mar 2026
  • Bellagio Road $36.8M $2,240/sf Nov 2025
  • Copa de Oro Road $33.5M $2,390/sf Jul 2025
23 buyers at this price in the last three years
9 of them one introduction away

Your network, and a record that speaks for you.

Colleagues, past clients and the agents across the table, mapped, so every lead arrives with a way in. And a profile of your closings and selected sales, to send before the first call.

  • Colleagues and past clients, one call from every lead.
  • A track record you curate, deal by deal.
  • Private prices stay private.
Jonathan Appleseed Estates Director, Carolwood Estates In your network · colleague
Career sales
$1.84B
Deals closed
212
Listings sold
131
Buyers represented
97
Selected sales
  • Beverly Park Terrace Listing 2025 $48M
  • Carbon Beach Buyer 2024 $36.5M
  • Mapleton Drive Both sides 2024 $29M

Broker more deals.

With the buyer in sight, the work that sells the house and closes the deal, handled.

Market the house to the people who would buy it.

One listing, the whole launch: the private listing page, the brochure, letters to the neighbors, and a note to every agent whose clients fit. Drafted for you, sent when you say.

  • Aimed at the buyers Doorbell found, not at everyone.
  • Drafts you edit, in your voice.
  • Every piece in your branding or your brokerage’s.
Launch Chalon Road, Bel Air Listing October 6 · $38,500,000
  • Private listing page Shared by link, views tracked Live
  • Email to buyers’ agents 38 agents whose clients fit Tue 9:00
  • Letters to neighbors 112 owners on Chalon and Bellagio Printing
  • Brochure, 24 pages Photography, plans, the story Proof ready
  • Broker’s open Thursday 11:00, 64 invited Sent
  • Instagram, 6 posts Your account and the brokerage’s Drafted
Drafted from the listing and the buyers Doorbell found. You edit, it sends.

Contract to close, nothing missed.

Every deal on one timeline: contingencies, deadlines, documents, and who owes what by when. Forms from zipForm and SkySlope and the threads in your Gmail file themselves to the deal they belong to.

  • Deadlines counted from the contract, with reminders.
  • Documents and email filed to the deal.
  • Every party and every number in one place.
In escrow · day 18 of 30 Tigertail Road, Brentwood
$21,750,000
  1. Offer accepted Sep 2 zipForm
  2. Deposit received Sep 5 Gmail
  3. Inspections Sep 12 SkySlope
  4. Loan contingency Sep 29
  5. Close of escrow Oct 2
14 emails and 11 documents filed to this deal on their own.

Know what you take home.

Sale price to take-home, before you sign: listing and buyer side, splits, caps, referrals and fees, then federal, self-employment and California tax on top of the year you have had.

  • Every deduction, line by line.
  • Tax on this deal, not an average.
  • Negotiate the commission knowing the number.
Sale price $38,500,000
  • Listing side· 2.5% $962,500
  • Brokerage· 80/20 split −$192,500
  • Brokerage fees −$500
  • Listing expenses −$85,000
  • Taxes, estimated· 38% −$257,077
  • Take-home $427,423
Splits, caps, referrals, fees, then federal, self-employment and California tax.

Yours, or your brokerage’s.

Reports, brochures, listing pages and your profile go out in your own name, or on your brokerage’s letterhead, in its colors and its type. The same work, dressed for whoever signs it.

  • Your name, your photograph, your details.
  • Or the house’s letterhead, colors and type.
  • Chosen listing by listing.
Jonathan Appleseed
A report for the owners Chalon Road Bel Air, California
September 2026
In your name
Carolwood Estates
A report for the owners Chalon Road Bel Air, California
September 2026
On your brokerage’s letterhead

Building the product we’ve always wanted.

Doorbell is built by agents and the people beside them, for the way the top of the market really works.

Portrait of Phil Braunstein

Phil Braunstein

Chief Executive Officer

Phil develops trophy homes in Brentwood and the Hollywood Hills through Colossal, among them a Tigertail Road estate with the first residential work by Beeple. A philosopher by training, with a Ph.D. from Boston College, he leads Doorbell as Chief Executive Officer with the same exacting standard he brings to every house he builds.

Portrait of Ed Leyson

Ed Leyson

Chief Marketing Officer

Ed co-founded Carolwood Estates in 2022 after years leading marketing at Hilton & Hyland. His campaigns for some of the most expensive homes in the country have run in The Wall Street Journal, Architectural Digest and the Robb Report. As Chief Marketing Officer, he shapes the Doorbell brand and how it reaches the agents it was built for.

Portrait of David Parnes

David Parnes

Chief Strategy Officer

David has closed more than $6 billion in sales, including The Manor at $120 million, a California record, and spent seven seasons on Bravo’s Million Dollar Listing Los Angeles. As Chief Strategy Officer, he sets what Doorbell builds and for whom, drawing on a career spent at the very top of the market.

By invitation.

Doorbell is in pilot now at Carolwood Estates in Los Angeles, on live listings and real deals. Next, we are opening it to a small number of forward-thinking agents and brokerages who want to change how real estate is transacted. If that is you, we would like to meet you.

© 2026

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