How to Build a Real Estate Email List (the Consent-First Way)

To build a real estate email list, collect addresses only from people who agree to hear from you: a signup form on your website, an open house sign-in with an unticked consent box, past clients asked at closing, and events and social posts that point to that form. Record how each person agreed, and never buy or scrape addresses.

A list built this way grows more slowly than a bought one, but every name on it is someone who expects your email. That shows up in your open rates, your spam complaints and, eventually, in the calls you get. Below are the places agents find subscribers, the wording to use, how to bring in the contacts you already have, and the shortcuts to avoid.

Start with consent, not addresses

An email list is only useful if you’re allowed to email it. In Canada, CASL requires consent before you send a commercial email, and almost everything an agent sends is commercial. In the US, CAN-SPAM lets you email without asking first, but a list of people who asked to hear from you still behaves far better than one that didn’t.

Two kinds of consent matter when you’re building a list:

• Express consent: the person actively said yes, for example by ticking an unticked box. It lasts until they unsubscribe, so it’s what you want for everyone in the long run.
• Implied consent: for example from a past client’s purchase of your services (two years) or an inquiry about a listing (six months). It runs out, so treat it as a window in which to ask for express consent.

When you ask for express consent, say what you’ll send, who is asking, how to reach you and that people can unsubscribe at any time. The CASL consent timelines table shows how long each kind lasts. Write one consent sentence now and reuse it everywhere on this page:

Signup forms on your website and social profiles

Your website is where people come looking for you, so it should be the easiest place to join your list. A good signup form asks for little, offers something specific and shows your consent sentence beside an unticked box.

• Offer a reason to join. “Get the [Neighbourhood] market update each month” or “New listings under [price] in [Area], as they come up” works better than “Subscribe to my newsletter”.
• Ask only for what you’ll use. Email and first name are enough to start. Add one question, such as “Are you buying, selling or just watching the market?”, only if you’ll send different emails to each answer.
• Put it where people decide. On your home page, at the end of each listing and blog post, and on a page of its own that you can link from your social profiles and email signature.

In OneHive Mail, a signup form gets its own web page at a link you can share, and you can also embed it on your website with a short code snippet. The consent box is unticked, people must tick it to join, and the wording they agreed to is stored with each sign-up. You choose single or double opt-in (with double opt-in, people confirm by email before they’re subscribed), which lists and tags each new subscriber gets, and whether they receive a welcome email straight away. If you’d like a page built around one offer, such as a free home valuation, a landing page uses the same drag-and-drop editor as your emails and shows its views and sign-ups.

Open house sign-ins

Open houses bring you more new names than almost anything else, and they’re where consent is easiest to get right or wrong. A visitor who only writes an email address on a sheet has arguably made an inquiry, which gives implied consent for six months at most, and the law doesn’t settle the point. A sign-in with an unticked consent box removes the doubt.

1. Use a tablet at the door. Open your signup form’s link on a tablet, so each visitor types their own details and ticks the box themselves.
2. Make the box optional in spirit. Some visitors sign in only for security. Tell them they can leave the box unticked and still come in.
3. Tag by address. Have the form add visitors to an “Open house visitors” list and a tag such as “Open house: [Address]”, so you can follow up with the right people.
4. On paper, use the same wording. Print your consent sentence above a tick-box column, then import the visitors who ticked it, with the date and address in the consent note.

The six emails in our open house follow-up templates pick up from here, and the open house email designs help you invite people to the next one.

Past clients and your sphere

Your past clients and the people you know are the warmest part of any list, but they aren’t automatically subscribers.

• Recent clients. A client who bought your services in the last two years gives you implied consent, so you can email them now. Use that time to ask for express consent: in your closing thank-you, on their first home anniversary, and once more before the two years are up.
• Older clients. If a client’s transaction was more than two years ago and nothing new has happened since, their implied consent has lapsed. Ask them in person or on the phone, and send your signup link once they say yes.
• Friends and family. CASL excludes messages between people with a family or personal relationship, but both are defined narrowly. Your wider sphere, such as a neighbour you’ve chatted with once or someone you only know online, usually doesn’t qualify. The friends, family and sphere example explains the definitions. When in doubt, ask.

Asking is easier than it sounds. When you tell people you’ve started in real estate or joined a new brokerage, add one line:

If they say yes, send them your form link so they can sign up themselves and their consent is recorded with the wording they saw.

Referrals, events and social media

Referrals

When a client passes on a friend’s email address, CASL allows one first message to that person, under strict conditions: the referral comes from an individual who has a qualifying relationship with you and with the person referred, and your email names the referrer in full and says it’s sent because of the referral. After that first email you need consent, so ask for it in that message. Our real estate referral email templates include an introduction written to those conditions.

Events

Client appreciation events, first-time buyer seminars and community sponsorships all bring in names. Put your signup form on a tablet at the check-in table, or show its link on a slide or a printed card. The RSVP list for an event isn’t a newsletter list: guests who registered gave you their address for the event, so ask them separately about your emails.

Social media

A follower isn’t a subscriber, and a contact you can message on a social platform hasn’t agreed to your email. Instead, give followers a reason to join: link your signup form in your profile, and mention a specific issue in your posts (“This month’s [Area] update goes out on Thursday; link in my profile to get it”). Each sign-up arrives with its consent recorded.

Import the contacts you already have

Most agents start with a spreadsheet, a phone’s address book or an export from another email tool. Before you import, sort each person by how they agreed to hear from you, because that’s what you’ll record.

• Express consent: people who signed up through a form or ticked a box.
• Implied: existing customer: clients whose purchase or contract with you was in the last two years.
• Implied: inquiry: people who asked you about a listing or your services in the last six months.
• Everyone else: keep them out of your email lists for now.

In OneHive Mail you upload a CSV, match its columns, choose the consent type for the whole file and add a short note, such as “Buyer clients, 2025–2026 closings”. You then confirm that everyone in the file agreed to receive email from you and that the list wasn’t bought or scraped. If your file mixes people who agreed in different ways, split it and import each part separately. Existing contacts are updated rather than duplicated, and anyone who previously unsubscribed, bounced or reported spam stays suppressed. The guide to importing your contacts walks through each screen.

For the “everyone else” group, such as people from business cards or old files with no record of how they were collected, add them to the CRM as contacts only. In OneHive Mail a contact added that way is never emailed by campaigns, so you can still keep notes, tasks and a timeline for them, and change their consent if they later sign up.

What not to do

• Don’t buy lists. Nobody on a bought list has given you consent, and under CAN-SPAM, harvested addresses make a violation more serious. OneHive Mail doesn’t allow them, and every import asks you to confirm the list wasn’t bought or scraped.
• Don’t scrape addresses from websites, listing portals or social profiles.
• Don’t add every business card you collect. A card handed to you gives implied consent only for messages relevant to that person’s business role, so a lawyer’s card isn’t a yes to your homebuyer newsletter. Add them as CRM-only contacts, or ask.
• Don’t cold-email to ask permission. Under CASL an email asking for consent is itself a commercial message, so it can’t be your first contact with a stranger.
• Don’t pre-tick the consent box, or treat silence as a yes.
• Don’t assume a lead from a third-party site is yours to email. Consent given to someone else doesn’t automatically extend to you, so check how the lead was collected.
• Don’t cold-email expired or FSBO sellers in Canada. Our expired listing and FSBO templates explain why, and what to do instead.

Organise the list as it grows

A list of 300 people you can’t tell apart is hard to email well. A little structure from the start makes every later email more relevant:

• Lists for what people signed up to receive, such as “Monthly newsletter” or “New listings: [Area]”.
• Tags for where they came from and what they’re interested in, such as “Open house: [Address]”, “Buyer” or “First-time buyer”.
• Segments that update themselves, such as everyone tagged “Buyer” in a given city, or past clients added more than 18 months ago, so you can ask for express consent before their implied consent runs out.

The guide to lists, tags and segments has segments worth saving. Then give new subscribers a reason to stay: a welcome email the day they join, and a regular newsletter they can count on. Our real estate newsletter examples show seven formats to choose from, and deliverability basics explains how list quality affects whether you reach the inbox.

You can try signup forms, consent records and imports with a free trial of OneHive Mail.

Frequently asked questions

How do I start a real estate email list from zero?

Ask the people you know, in person or by phone, whether they’d like a monthly update from you, and send them your signup form. Add the form to your website and social profiles, use it as your open house sign-in, and ask every client at closing. Record how each person agreed.

Can I add my phone contacts to my email list?

Only those who have agreed to hear from you, or whose consent is implied, such as clients from the last two years. In Canada, a genuine family or personal relationship is excluded from CASL, but the definitions are narrow. For everyone else, ask first.

Is it legal to buy a real estate email list?

Under CASL, nobody on a bought list has consented to hear from you, so emailing them breaks the consent rule. Under CAN-SPAM, harvested addresses make a violation more serious. OneHive Mail doesn’t allow bought or scraped lists.

How fast should a real estate email list grow?

There’s no right number. A few new subscribers from every open house, listing and event add up, and a smaller list of people who asked to hear from you is worth more than a large one that didn’t.

Should I use single or double opt-in?

Double opt-in, where people confirm by email, keeps out typos and fake addresses. Single opt-in subscribes people at once, which suits a tablet at an open house. OneHive Mail lets you choose for each form, and records the consent wording either way.

What should I send people right after they join?

A short welcome email that thanks them, says what you’ll send and how often, and offers one useful thing, such as a recent sales list for their area. A signup form in OneHive Mail can send one automatically.