Global Listing Standard 2.0
Making real estate fairer faster smarter standard better across the world.
Pioneered by
Open Source
AI-Ready ✨
Modular
What is the GLS?
The GLS is a standardized JSON definition that Pamberton is releasing for free, for everyone. It takes inspiration from the Multiple Listing System (MLS) data standard that is used in North America. Think of it like a universal language that can be used to describe properties regardless of shape, size, or type.
History
Pamberton, specializing in Real Estate analytics identified the lack of standardization across countries and regions, visible in the performance of those markets compared to those that had access to MLS’ (United States of America, Canada, and more…).
We believe that by introducing a universal definition that listings follow, we can improve the pace of which these markets operate, directly improving market health.
GLS 1.0 (Deprecated)
GLS 1.0 was the legacy definition used by Pamberton for our large-scale analytics platform Atlas, which has since been deprecated (atlas.pamberton.com).
GLS 1.0 required the object notation to match the example below, but as our mission for the GLS is to be accessible for everyone will mean that in GLS 2.0 listing details are modular, and objects such as the agencies/agency details are optional.
Example (GLS 1.3-latest-deprecated)
{
"house": {
"address": {
"street": "123 Main Street",
"city": "Anytown",
"state": "CA",
"zip": "91234",
"country": "USA"
},
"propertyDetails": {
"type": "Single Family Home",
"bedrooms": 3,
"bathrooms": 2.5,
"squareFootage": 2200,
"lotSize": 7500,
"yearBuilt": 1995,
"garage": {
"type": "Attached",
"spaces": 2
},
"pool": true,
"fireplace": true,
"heating": "Central Heating",
"cooling": "Central Air Conditioning"
},
"features": [
"Hardwood Floors",
"Granite Countertops",
"Stainless Steel Appliances",
"Vaulted Ceilings",
"Walk-in Closet"
],
"listingDetails": {
"price": 750000,
"status": "For Sale",
"listingAgent": {
"name": "Jane Doe",
"phone": "555-123-4567",
"email": "jane.doe@email.com"
},
"dateListed": "2023-10-27",
"mlsNumber": "123456789"
},
"images": [
{
"url": "https://example.com/images/house1.jpg",
"description": "Front view of the house"
},
{
"url": "https://example.com/images/kitchen.jpg",
"description": "Kitchen with granite countertops"
},
{
"url": "https://example.com/images/pool.jpg",
"description": "Backyard pool"
}
]
}
}
Application
The primary purpose of the GLS is to allow businesses and people involved in the property markets to write, store, retrieve, and operate on the raw data that underpins properties around the world in a structured, standardized manner.
GLS 2.0 is optimized for embedding in large scale data operations such as vector storage for LLMs, HPC enabled ML analytics, and more.
Development
The development of GLS is currently private, as a joint collaboration between Pamberton and our partners. We plan to open-source the documentation and development process to the public on May 1st, 2025 to coincide with the release Real Estate Market Report (1st Edition, 2025), the first commercial product built using the Global Listing Standard (v2.0).
Partnering
If you, or your team is interested in working with Pamberton in changing the way listings are managed across the world we invite you to contribute to the GLS 2.0 project and become one of our partners.
Kindly reach out to us via our contact form and we will be in touch.
Sign up to be notified on GLS 2.0
Get the latest development updates on GLS 2.0, and get notified when GLS 2.0 gets released.
