MLS Listing Description Requirements:
What You Need to Know (2025)
Every MLS has rules about what you can — and can't — put in a listing description. Get it wrong and you risk rejection, fair housing complaints, or a listing that doesn't convert. Here's everything you need to write compliant, compelling copy.
In This Guide
MLS Character Limits by Region
Most MLSs set a maximum character count for listing descriptions — not word count. Character limits include spaces and punctuation. Here are approximate limits for the largest regional MLSs in the US:
| MLS / Region | Character Limit | Notes |
|---|---|---|
| CRMLS (California) | ~2,500 characters | Covers most of Southern California |
| NWMLS (Pacific NW) | 2,000 characters | Washington State |
| MRED (Chicago area) | 2,500 characters | Midwest region |
| NTREIS (North Texas) | 2,000 characters | Dallas/Fort Worth |
| GAMLS (Georgia) | 2,000 characters | Atlanta metro |
| BRIGHT MLS (Mid-Atlantic) | 1,500 characters | DC/MD/VA/PA/NJ |
| RMLS (Portland, OR) | 1,500–2,000 chars | Pacific Northwest |
| HAR (Houston) | 2,500 characters | Greater Houston area |
| SEFMLS (South Florida) | 2,000 characters | Miami, Fort Lauderdale |
| Canopy MLS (Charlotte) | 2,000 characters | Charlotte, NC region |
⚠️ Always verify with your specific MLS
Character limits vary and change. Always check your MLS's current rules in their member portal or stylesheet. The figures above are approximate and based on 2024–2025 data.
What You Cannot Include in an MLS Description
MLS rules exist to protect the integrity of the platform and ensure compliance with federal and state fair housing laws. Here are the categories of content most MLSs prohibit:
🚫 Contact information
- • Agent name or phone number
- • Brokerage name or website
- • Email addresses
- • Social media handles
- • "Call me", "call us", "call [name]"
🚫 Showing instructions
- • Lock box codes
- • Instructions to contact a specific person
- • "By appointment only" (in description — use proper fields)
- • Alarm codes or security information
🚫 URL links
- • URLs or web addresses of any kind
- • Property website links
- • Virtual tour links (use designated field)
- • QR codes described in text
🚫 Protected class language
- • Any reference to race, color, religion
- • National origin, sex, disability, familial status
- • "Perfect for couples/families/retirees"
- • Neighborhood description that implies segregation
Fair Housing Compliance in Listing Descriptions
The Fair Housing Act prohibits discrimination based on race, color, religion, national origin, sex, disability, and familial status. NAR adds additional protections for sexual orientation and gender identity. Listing descriptions must not — directly or indirectly — indicate a preference for buyers from or against any protected class.
❌ Examples of non-compliant language
- • "Perfect for a growing family" — implies familial status preference
- • "Walking distance to [specific religious building]" — can imply religious preference
- • "Great for a couple" — familial status / sex
- • "Steps to [ethnic neighborhood/restaurant district]" — can imply national origin preference
- • "Handicap accessible" (without being factual) — disability
- • "Great neighborhood for retirees" — age / familial status
✅ How to describe lifestyle without violating Fair Housing
- • Describe features, not people: "3 spacious bedrooms" not "perfect for a family of 4"
- • Name actual amenities: "within walking distance of cafes, parks, and schools"
- • Describe the property, not who should live in it
- • Use school names/ratings only when factual and relevant
Best Practices for MLS Listing Descriptions
Beyond compliance, here are the practices that separate listings that get showings from ones that get ignored:
Lead with the strongest feature
Your first sentence must grab attention. Don't start with "Welcome to..." or the address. Open with the most compelling thing about the property — the view, the renovation, the location, the space.
Use keyword-rich language
Buyers search for specific terms. Include descriptive keywords: "chef's kitchen", "open floor plan", "primary suite", "private backyard", "vaulted ceilings". These signal value and improve discoverability.
Target 150–200 words for MLS
Studies of listing performance suggest 150–200 words is the sweet spot. Too short and you leave selling points on the table. Too long and busy buyers skim or the MLS truncates you.
End with a call to action
"Schedule your private showing today" or "Don't miss this opportunity — book your tour now." A clear CTA increases showing requests.
Tailor tone to the property
A luxury waterfront home and a starter condo should not sound the same. Match your language to the buyer you're trying to reach and the lifestyle the property enables.
Common MLS Description Mistakes
Starting every listing with "Welcome to..."
Using ALL CAPS for emphasis (most MLSs ban it)
Repeating the address when it's already in the listing
Vague filler phrases: "You won't want to miss this!"
Forgetting to mention key features that are visible in photos
Writing in the third person: "This home has..."
Ignoring character limits and having text cut off
No call to action at the end
How to Write MLS Descriptions Faster
If you're writing MLS descriptions from scratch, you already know it's time-consuming. A well-crafted 200-word listing description can take 45–90 minutes by the time you draft, edit, and review. For agents with 10+ listings a month, that's an entire workday every month spent on copy.
AI tools have changed this. RealtyCopywriter can generate a compliant, tone-matched MLS description plus social caption and email subject line in under 10 seconds — with neighbourhood data automatically included. The AI is trained to avoid fair housing language, stay within character limits, and end with a strong call to action.
You still review and approve everything before it goes live — but instead of writing from scratch, you're editing a strong first draft. Most agents report spending 2–5 minutes per listing instead of 45–90 minutes.
Get Your MLS Description Right the First Time
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