Sanctuary Certified measures the six environmental factors that shape how a home feels to live in — and gives you a documented score you can stand behind.
Give buyers data before they ask. Stand behind your price with proof, not promises.
Go to Seller Section → I'm buying a homeA standard inspection tells you what's broken. We tell you what it does to the body.
Go to Buyer Section → I own a rentalGuests are researching air quality before they book. Give them something real to find.
Go to Rental Section →Radon. Air quality. How does the light feel in the afternoon? These are not niche concerns anymore. Health-conscious buyers represent one of the fastest-growing segments in the market — and right now, most sellers have no answer.
The moment a buyer walks through the door, their body is doing an environmental assessment. A Sanctuary Certification hands them a third-party verified report before they have to wonder. That changes the conversation — and the negotiation.
Inspection anxiety is what buyers use to chip away. When they already have air quality data, radon levels, and an environmental score in hand, there's less ground for uncertainty-based offers. You've already answered it.
A Sanctuary Certification passes to the buyer with the home. They feel ownership before they sign. In a transaction built on trust, that's not a small thing.
There is no national equivalent. No competing certification covers all six dimensions under one score. You're not choosing between options — you're getting the only one that exists.
The wellness real estate market has crossed $400 billion globally. In residential, it's showing up as buyers who research air quality before they research schools.
Global wellness real estate market — the fastest-growing segment in residential property worldwide.
Of buyers surveyed say indoor environmental quality influences their purchasing decision.
Deaths per year in the US attributable to radon-related lung cancer — a factor measurable in 2 hours.
Sanctuary Certified is the first and only property wellness certification program in the United States.
"Most people feel a home before they think it. Sanctuary makes that feeling measurable."— Melissa Merriman, Founder · Sanctuary Certified Homes
A Sanctuary Certified agent arrives with calibrated instruments and leaves you with a full environmental profile. No prep needed. One visit. Complete clarity.
Particulate matter (PM2.5/PM10), VOC levels, CO₂ concentration, and humidity — scored against established health benchmarks and explained in plain language.
Short-term radon measurement with EPA benchmark context. The second leading cause of lung cancer is also one of the easiest things to measure and disclose.
Natural light access by room, circadian disruption risk, and blue light exposure — factors that affect sleep, mood, and how a home actually feels to live in day-to-day.
Ambient noise levels, acoustic quality, and sound intrusion patterns. Measured, not guessed.
Electromagnetic field levels from wiring, appliances, and external sources — increasingly relevant to health-conscious buyers and parents.
Hot and cold zones, HVAC distribution, and temperature consistency throughout — because comfort is also a health factor.
This is what a certified home looks like on paper. Every dimension scored. Every number explained. Something a buyer can hold.
Sample Sanctuary Score™
123 Maple Street · Pittsburgh, PA — Example Report
For illustrative purposes only. Scores reflect a sample property and do not represent any actual assessment result.
No prep required. No disruption to your schedule. We bring the equipment, you get the data.
Fill out the form below. A Sanctuary Certified agent in your area will reach out within 48 hours to confirm.
Your agent visits with calibrated instruments and conducts the full six-dimension environmental assessment. Usually 60–90 minutes.
Within days, you receive a full Sanctuary Report — dimension-by-dimension findings, your overall score, health context, and a shareable PDF.
Qualifying homes receive the Sanctuary Certified designation. The certification transfers to buyers at closing.
That's not a criticism. It's a structural problem. The data hasn't existed. Buyers make decisions based on walkthrough impressions — the way a space feels — and then spend years living with variables no one measured.
Sanctuary makes that data available for the first time. Whether you're under contract, post-closing, or just considering a home — you deserve to know what you're actually buying.
Request a Pre-Purchase AssessmentHome inspections cover structure, systems, and safety code. They were never designed to measure the environmental quality of the air you breathe, the light that shapes your sleep, or the noise floor you'll wake up to every morning.
Sanctuary fills that gap. Before you close — or after — you can know exactly what you're moving into.
Older homes, recent renovations, carpet, and poor ventilation all affect indoor air quality. We measure particulates, VOCs, and CO₂ levels against EPA benchmarks — not just "it smells fine."
Radon is odorless, invisible, and the second leading cause of lung cancer in the US. It's present in elevated levels in roughly 1 in 15 homes. A short-term test gives you a definitive answer.
Light temperature, noise floor, and thermal consistency all affect sleep quality. We measure all three — so you know before you move in, not six months later.
You don't need to own the home to request an assessment — just coordinate with your agent. Most assessments are scheduled within 5–7 business days.
Fill out the form below. Tell us where you are in the process — pre-offer, under contract, or post-closing. We'll match you with a certified assessor.
A Sanctuary Certified agent contacts you within 48 hours to schedule the on-site assessment. Usually 60–90 minutes on property.
A full Sanctuary Report with your score, dimension-by-dimension findings, and plain-language context for everything we found.
Use the report in your purchase decision, share it with your agent, or negotiate based on findings. The data is yours.
Anyone can write "clean, bright, and welcoming" in a listing description. A Sanctuary Score is verifiable. It's a credential no filter on Airbnb can replicate — and the guests who care about it are your highest-value guests.
Display the Sanctuary Certified designation on your listing, website, and social presence. Third-party verified — not self-reported. That's the difference guests can feel.
Health-conscious travelers, digital nomads, and families with young children are growing as a booking segment — and they're actively filtering for properties that can prove environmental quality.
When your listing comes with a documented score, you're not competing on price with properties that can't prove what they are. You're in a different category.
Air quality, radon, light, sound, EMF, and temperature — assessed with guest occupancy and short-stay exposure in mind. One visit, done in 60–90 minutes.
The process is identical to a residential certification — the report and badge are formatted specifically for rental use.
Submit the form below. Tell us it's a rental property and we'll match you with a certified assessor in your area.
A Sanctuary Certified agent visits with calibrated instruments. Usually 60–90 minutes. No guests need to be present.
You receive a full Sanctuary Report plus your certification badge — formatted for listing platforms, your website, and social use.
Display your certification with confidence. Renew annually to maintain active status and keep the designation current for guests.
Fill out the form and a Sanctuary Certified agent will reach out within 48 hours to schedule your assessment.
We review every request personally. You'll hear back within 48 hours.
Disclaimer: Sanctuary Certified Homes provides environmental data assessments for informational purposes only. The Sanctuary Score and all assessment findings are not intended to constitute medical advice, diagnose any health condition, or serve as a guarantee of health outcomes. Results reflect conditions measured at the time of assessment and may change over time. Sanctuary Certified Homes is not a licensed medical, environmental engineering, or public health authority. Homeowners and buyers are encouraged to consult qualified professionals regarding any health, safety, or remediation concerns identified in their report. The Sanctuary Certification designation is a proprietary program standard and is not affiliated with, endorsed by, or equivalent to any government agency, regulatory body, or third-party certification organization.