OnTheMarket Email Scraper

OnTheMarket Email Scraper: a small, honest UK branch-contact source

The OnTheMarket Email Scraper collects contact emails that are publicly visible in Google's index alongside OnTheMarket pages. Read the constraint before the pitch: OnTheMarket restricts much of its listing index, so this Actor returns few results; the Domain Agents and RealEstate.com.au Agents Actors cover their markets more fully. In a measured run the OnTheMarket Email Scraper parsed three result blocks, recovered no identity data and returned one unique email.

That is the honest ceiling on this platform, and it is the first thing you should plan around. Use the OnTheMarket Email Scraper as a narrow supplementary pass over the UK market, not as the backbone of a UK estate agent email list. If you need real volume from this category, the Australian Actors are far stronger sources for their markets, and the US franchise Actors are stronger still.

OnTheMarket is a UK portal backed by estate and letting agents, and its pages are organised around branches rather than individual negotiators. Branches publish a contact address because vendors, landlords and tenants have to be able to reach them. The OnTheMarket Email Scraper reads only what Google already indexed from those public pages, which is the entire basis on which an OnTheMarket email extractor can work.

Who the OnTheMarket Email Scraper is for

UK proptech vendors run the OnTheMarket Email Scraper to sell agency CRM, branch websites, virtual staging, floor plans and transaction management. Mortgage brokers, conveyancers, EPC assessors and survey firms use it to look for branch-level referral partners. Recruiters and franchise development teams use the OnTheMarket Email Scraper to source estate and letting agency branches by town or borough.

What the OnTheMarket Email Scraper never does

The OnTheMarket Email Scraper never logs into OnTheMarket, never uses an OnTheMarket API and never opens the website. There is no browser, no JavaScript rendering, no authentication and no cookies in the pipeline. Every field comes from publicly indexed Google search results: titles, snippets and site labels.

Key features of the OnTheMarket Email Scraper

Feature	What it does for a UK estate agent contact list
Google site: targeting	Every query is scoped to onthemarket.com so nothing off-platform leaks in
Query expansion	Base, quoted and intitle: phrasings plus one variant per query modifier
Structural parsing	Locates the <h3> title then the smallest surrounding block, never Google CSS class names
Domain-filtered extraction	Only addresses ending in your customDomains are kept
Global deduplication	One row per unique email across every query and every page
Email normalisation	Handles name [at] domain [dot] com, name (at) domain, name @ domain.com, domain .com, zero-width characters and the full-width at sign
Junk filter	Rejects placeholders such as email@, yourname@, test@, xxx@ and single-character locals
Boundary-correct matching	@gmail.com never matches inside @gmail.company or @gmail.com.br
Soft-wrap repair	Drops a hit that is only the tail of another address in the same block
Concurrency pool	An asyncio worker pool with a shared stop signal on maxEmails
Retries and block detection	Up to 3 attempts per page, exponential backoff, a fresh proxy session per request, and CAPTCHA or consent pages retried rather than counted as empty
Requeue of failures	Blocked or failed queries are retried once at the end of the run
Resumable state	Stored in the key-value store keyed by a hash of your input, saved on PERSIST_STATE, MIGRATING and ABORTING
Fallback parser	A Google layout change degrades the run to emails without account details, not to nothing
Run summary	Logs pages fetched, blocked pages, retries and emails per page

On a restricted index, query expansion is the feature doing most of the work in an OnTheMarket Email Scraper run. Each extra phrasing is another chance to reach a page Google did index, so leave expandQueries on.

How the OnTheMarket Email Scraper works

1. The OnTheMarket Email Scraper reads your input: keywords, location, email domains and limits.
2. It builds Google queries with the site: operator, for example site:onthemarket.com "letting agent" "@gmail.com" "Clapham".
3. It fetches result pages through the Apify GOOGLE_SERP proxy with async aiohttp requests.
4. It parses each result block structurally instead of by CSS class.
5. It extracts addresses from the block text with a domain-filtered regex.
6. It deduplicates globally and pushes each lead to the dataset immediately.

Base queries run before expanded variants, so whatever OnTheMarket pages are indexed surface first. The OnTheMarket Email Scraper writes rows as it finds them, which matters when a run may only produce a handful.

Input reference for the OnTheMarket Email Scraper

Field	Type	Default	Meaning
keywords	array (required)	["estate agent", "letting agent"]	Search terms describing the accounts you want
location	string	""	Optional location phrase added to every query
customDomains	array	["@gmail.com","@yahoo.com"]	Only emails on these domains are kept; the @ is optional
maxEmails	integer 1-10000	20	Stop after this many unique emails
countryCode	string	""	Two-letter country for the search proxy (US, GB, DE...)
expandQueries	boolean	true	Search each keyword x domain pair in several phrasings
queryModifiers	array	["email","contact","listing agent","inquiries","broker"]	Extra words combined with each keyword when expansion is on
maxPagesPerQuery	integer 1-50	30	Page cap per query
maxConcurrency	integer 1-20	5	Parallel queries

location is the input that matters most

UK agency branches are organised by town and borough, so location is the single most valuable control in the OnTheMarket Email Scraper. Start with cities and boroughs: London, Manchester, Birmingham, Leeds, Bristol, Edinburgh, Glasgow, Cardiff, Islington, Wandsworth. Then narrow to the neighbourhood or high street a branch would name: Clapham, Shoreditch, Didsbury, Chorlton, Jesmond, Harrogate, Cheltenham, Guildford.

Write the phrase the way a branch page would print it. Clapham beats Clapham, London, United Kingdom, and a neighbourhood name usually beats a postcode district, though outward codes such as SW4 are worth a second run. Because the index is restricted, run many small locations and accept that several will return nothing at all.

countryCode guidance

Set countryCode to GB. UK routing matters here because names such as Richmond, Kingston, Bolton and Hamilton exist in several countries. Without it, the OnTheMarket Email Scraper will spend part of an already thin page budget on non-UK results.

Example input

{
  "keywords": ["estate agent", "letting agent", "branch"],
  "location": "Clapham",
  "customDomains": ["@gmail.com", "@yahoo.com", "@hotmail.co.uk", "@btinternet.com"],
  "maxEmails": 100,
  "countryCode": "GB",
  "expandQueries": true,
  "queryModifiers": ["email", "contact", "listing agent", "inquiries", "broker"],
  "maxPagesPerQuery": 30,
  "maxConcurrency": 5
}

Output reference for the OnTheMarket Email Scraper

Every dataset item written by the OnTheMarket Email Scraper carries all fourteen fields.

Field	Meaning
network	Platform name
keyword	The keyword that produced the lead
query	The exact Google query used
title	Raw result title
accountName	Account label Google prints
fullName	Display name parsed from a profile-style title; empty for listing captions
username	URL-safe handle when the platform exposes one; otherwise null
profileUrl	Canonical account URL when a handle is known; otherwise empty
url	Direct platform link when exposed, else the profile URL
description	Bio or caption snippet, cleaned of labels and counters
email	Lower-cased email address
emailDomain	The matched domain
possiblyTruncated	true when Google's snippet ellipsis touched the email
foundAt	ISO 8601 UTC timestamp

Example output

[
  {
    "network": "OnTheMarket",
    "keyword": "letting agent",
    "query": "site:onthemarket.com \"letting agent\" \"@gmail.com\" \"Clapham\"",
    "title": "Property to rent in Clapham, London - OnTheMarket",
    "accountName": "OnTheMarket",
    "fullName": "",
    "username": null,
    "profileUrl": "",
    "url": "https://www.onthemarket.com/to-rent/property/clapham/",
    "description": "Lettings inquiries and viewing requests to claphamlets.rentals@gmail.com.",
    "email": "claphamlets.rentals@gmail.com",
    "emailDomain": "@gmail.com",
    "possiblyTruncated": false,
    "foundAt": "2026-08-31T13:15:52Z"
  },
  {
    "network": "OnTheMarket",
    "keyword": "estate agent",
    "query": "site:onthemarket.com \"estate agent\" contact \"@yahoo.com\" \"Clapham\"",
    "title": "Harewood & Vale, Clapham - Estate Agent - OnTheMarket",
    "accountName": "harewood-vale-clapham",
    "fullName": "Harewood & Vale",
    "username": "harewood-vale-clapham",
    "profileUrl": "https://www.onthemarket.com/agents/branch/harewood-vale-clapham/",
    "url": "https://www.onthemarket.com/agents/branch/harewood-vale-clapham/",
    "description": "Sales and lettings across Clapham and Balham. Branch inquiries to harewoodvale.clapham@yahoo.com.",
    "email": "harewoodvale.clapham@yahoo.com",
    "emailDomain": "@yahoo.com",
    "possiblyTruncated": false,
    "foundAt": "2026-08-31T13:16:40Z"
  }
]

The first row is the shape you should expect most often: an address with username: null and an empty profileUrl, because the restricted index leaves Google little to print. The second is the branch-page case, and it is comparatively rare in an OnTheMarket Email Scraper run. Note that a resolved handle here identifies a branch, not an individual negotiator.

Use cases for the OnTheMarket Email Scraper

Use case	How the OnTheMarket Email Scraper fits
UK gap filling	A small supplementary pass over a UK list built from other sources
Branch-level software sales	Reach an agency branch rather than a single negotiator
Mortgage and conveyancing referrals	Identify branches operating on a specific high street
Listing media services	Pitch photography or video to a branch with recurring inventory
Recruiting	Sample which branches publish a public contact address in a borough
Market research	Measure how much of a portal's index is publicly reachable
List validation	Cross-check a purchased UK agent contact database against live indexed pages

Example run recipes

Three OnTheMarket Email Scraper configurations worth trying, with modest expectations.

South London branches: keywords ["estate agent", "letting agent"], location Clapham, countryCode GB, maxEmails 50. Greater Manchester: keywords ["letting agent", "branch"], location Didsbury, domains ["@gmail.com", "@hotmail.co.uk", "@btinternet.com"]. Wide sweep: run the OnTheMarket Email Scraper across ten boroughs in separate jobs and merge, since any single job may return nothing.

Results you should realistically expect

Expect very few rows. In a measured run the OnTheMarket Email Scraper parsed three result blocks, produced no identity data and returned one unique email. OnTheMarket restricts much of its listing index, so an empty or near-empty run is a normal outcome rather than a fault. No volume is guaranteed anywhere in this family of Actors, and here that caveat carries real weight.

For fuller coverage of their own markets, use Domain Agents Email Scraper and RealEstate.com.au Agents Email Scraper, which return substantially more per run. If your market is the United States, Keller Williams Agent Email Scraper and Coldwell Banker Agent Email Scraper are the two densest sources in this category.

Responsible use

UK branches publish these addresses so vendors, landlords and tenants can reach them, so make OnTheMarket Email Scraper outreach a relevant business offer rather than a blast. For UK recipients, GDPR and PECR govern marketing email, including lawful basis, sender identification and a working unsubscribe path. CAN-SPAM applies to US recipients, CASL to Canadian ones and the Spam Act to Australian ones; phone follow-up brings TCPA-adjacent rules into scope.

Fair Housing style principles apply to property outreach in every market, and UK equality law covers comparable ground. Do not use the location input to include or exclude people on the basis of protected characteristics. This is not legal advice; confirm your own obligations before you send.

Limitations of the OnTheMarket Email Scraper

• OnTheMarket restricts much of its listing index, so this Actor returns few results; the Domain Agents and RealEstate.com.au Agents Actors cover their markets more fully. This is the governing limitation.
• The OnTheMarket Email Scraper only finds addresses that are publicly visible in Google's index.
• Google caps a single query at roughly 300 results, which is why query expansion exists; keep expandQueries on.
• possiblyTruncated: true means Google's snippet ellipsis touched the address, so verify those rows before sending.
• username and profileUrl populate only when Google exposes a handle; empty values are a Google limitation, not a bug.
• The OnTheMarket Email Scraper requires the Apify GOOGLE_SERP proxy and cannot run without Apify proxy credentials.
• Free Apify plans are capped at 100 emails per run; paid plans are uncapped.
• Results vary with keywords, domains and location, and no volume is guaranteed.

FAQ about the OnTheMarket Email Scraper

How many results should I expect?

Very few. In a measured run the OnTheMarket Email Scraper parsed three result blocks, recovered no identity data and returned one unique email. Plan for single digits and treat an empty run as a normal outcome.

Why is volume so low?

Because OnTheMarket restricts much of its listing index, there are fewer public pages for Google to index and for the Actor to parse. No input change overcomes a restricted index.

Which Actor should I use instead for volume?

Domain Agents Email Scraper and RealEstate.com.au Agents Email Scraper cover their markets far more fully than the OnTheMarket Email Scraper covers the UK.

Does it log into OnTheMarket?

No. The OnTheMarket Email Scraper reads publicly indexed Google results only, with no login, no API and no site visits.

Does the OnTheMarket Email Scraper return branches or individual negotiators?

Branches. OnTheMarket's canonical handle format is a branch path, so a resolved profileUrl points at an office.

What should I put in location?

A borough, town or neighbourhood as a branch page would print it: Clapham, Islington, Didsbury, Harrogate, Bristol. Outward postcodes such as SW4 are worth a separate run.

Should I set countryCode?

Yes, use GB. Many UK place names also exist abroad, and GB routing keeps a thin page budget pointed at UK pages.

Which email domains should I add to the OnTheMarket Email Scraper?

The defaults plus UK consumer domains: @hotmail.co.uk, @outlook.com, @btinternet.com, @sky.com and @live.co.uk. Agency domains work too when you already know which branch network you want.

Why is profileUrl empty on most rows?

Google frequently prints no branch handle for these pages, so the OnTheMarket Email Scraper has nothing to build a canonical link from.

What does possiblyTruncated mean?

Google's snippet ellipsis touched the address, so it may be incomplete. Verify before adding it to a sequence.

Can I resume an interrupted OnTheMarket Email Scraper run?

Yes. State lives in the key-value store keyed by a hash of your input and is saved on PERSIST_STATE, MIGRATING and ABORTING.

Is this affiliated with OnTheMarket?

No. The OnTheMarket Email Scraper is an independent Actor and is not affiliated with, supported by or endorsed by OnTheMarket.

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