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A high-performance home is not just energy efficient. It's one where the air you breathe is clean, the temperature holds steady through any season, the bills stay predictable, and the structure is built to stand up to a bad storm. The problem? None of that shows up when you tour a house. You see what the seller wants you to see: the updated kitchen, the fresh paint, the square footage.
“Home performance isn’t about equipment,” says Casey Murphy, Senior Vice President of Quality & Standards at Pearl, who has spent more than 30 years evaluating homes and built his own to a Pearl SCORE™ of 977 out of 1,000. “It’s about the quality of life the home delivers.”1
This guide gives you a practical framework for identifying a high-performance home before you make an offer. By the end, you will know what “high performance” means in measurable terms, how to look up any home’s performance data for free, and what questions to ask at a showing that most buyers never think to raise.
The phrase “high-performance home” gets used loosely in real estate. Most buyers assume it means energy efficient. That assumption leaves out most of what matters.
Murphy describes it this way: a Formula 1 car is not high-performing because of one feature. It requires acceleration, braking, cornering, and top speed working together. A pickup truck performs through towing capacity and durability. A luxury sedan performs through ride quality and cabin quietness. Homes work the same way.1
A high-performing home, as defined by Pearl SCORE™, performs well across five distinct dimensions at the same time. Most homes are strong on one or two. Truly high-performing homes, those with a Pearl SCORE above 500 on a 1 to 1,000 scale, perform well across all five.2
| Pillar | What it covers | What to look for |
|---|---|---|
| Safety | Radon, CO, water quality, toxic materials, indoor air quality | Active radon mitigation; CO detectors on every level; documented water quality |
| Comfort | Temperature consistency, humidity control, drafts, acoustic comfort, daylighting | Blower door test on file; consistent temperature room to room; humidity levels documented |
| Operations | HVAC efficiency*, air sealing, building envelope, insulation, ductwork, appliances, plumbing | Verified HVAC efficiency rating; duct leakage tested; ENERGY STAR appliances |
| Resilience | Storm-resistant construction, backup power, structural durability | Wind-rated construction; impact windows or shutters where relevant; backup power |
| Energy | Solar, battery storage, EV readiness, smart energy management | Active solar or PV-ready roughed in; battery storage; Level 2 EV charging |
*HVAC performance depends heavily on the building shell around it, not just the equipment. A high-efficiency heat pump installed in a poorly insulated, leaky house still works twice as hard to hold a stable temperature. Insulation, air sealing, and ductwork are as important as the heating and cooling unit itself.1
A home that performs well across all five pillars is a more predictable asset. You can expect lower operating costs, fewer comfort surprises after move-in, and less risk that an inspection uncovers something that derails the transaction.
Most homeowners have never had a performance checkup on their home. They wait until something breaks, guess at the cause, and spend money on the wrong fix. Pearl SCORE™ changes that sequence for you as a buyer.
Pearl Home Performance Registry™ has already scored more than 97 million US single-family homes on safety, comfort, operations, resilience, and energy.2 That means almost any home you are evaluating already has a Pearl SCORE you can access for free, before the showing.
To look up any home, enter the address at pearlscore.com. What you get is a Pearl Snapshot: a free, public view of the home’s performance. Here is how to read what you see.
| Section | What it tells you | What to do with it |
|---|---|---|
| Pearl SCORE | Overall rating, 1 to 1,000 | 500+ = high-performing threshold; below 250* warrants closer investigation |
| Home Status | Claimed (blue checkmark) vs. unclaimed | Claimed = owner-confirmed data; unclaimed = modeled baseline, less precise |
| Five Pillars | Individual scores for each dimension | Start with Safety and Operations, most directly affect your daily costs and health |
| Operating Cost Comparison | How costs compare to similar homes nearby | A higher-cost home affects your real affordability over years of ownership |
*The average US home scores around 250, according to Pearl's data. A score above 500, the high-performing threshold, puts a home in the top tier of the national housing stock.
Pearl SCORE does not replace a home inspection. It gives you performance information that would otherwise only surface after closing, and it is available before you schedule the showing.
A showing reveals surfaces. A Pearl Snapshot reveals systems. But even with the Snapshot in hand, some performance factors require asking direct questions, because they only exist in the record if someone documented them.
Before the table below, consider the health stakes. Research by the Children’s Mercy Kansas City Healthy Homes Program, in partnership with the Center for Economic Information at the University of Missouri, Kansas City, found that children under 16 living in weatherized homes had up to 33% fewer acute care asthma visits after home performance improvements.3 Nationally, asthma affects approximately 1 in 12 children in the United States and generates roughly 1.7 million emergency department visits each year.4 The air quality inside a home is not a comfort preference. It is a health factor that traditional listings were never designed to surface, and Pearl Snapshot is.
| What's hidden | Why it matters to you | Pillar | How to surface it |
|---|---|---|---|
| Radon | Second leading cause of lung cancer in the US; ~21,000 deaths/year; odorless and colorless5 | Safety | Check Safety pillar; ask for test results and mitigation system documentation |
| Carbon monoxide risk | A leading cause of unintentional poisoning deaths; produced by aging or poorly ventilated fuel-burning appliances6 | Safety | Check Safety pillar; ask for furnace inspection records; confirm CO detectors on every level |
| Insulation | Hidden in walls and attic; drives your heating/cooling costs and room-to-room temperature consistency | Operations + Comfort | Check Operations and Comfort pillars; ask for insulation documentation or prior energy audit |
| HVAC efficiency and age | Efficiency ratings not displayed on units; an aging system may need replacement within your first year of ownership | Operations | Check Operations pillar; ask for model number, installation date, and efficiency rating |
| Duct leakage | Leaky ducts divert conditioned air into walls rather than living spaces; requires a duct blaster test to measure | Operations | Check Operations pillar; ask if duct leakage has been tested and for any test results |
| Air sealing | Poor sealing lets outdoor air, moisture, and pollutants into your living space; only measurable with a blower door test | Operations | Check Comfort and Operations pillars; ask for blower door test results |
| Resilience construction | Structural connections and tie-downs are inside walls; in 2024, the US recorded 27 billion-dollar weather disasters totaling $182.7B in damage7 | Resilience | Check Resilience pillar; ask for IBHS FORTIFIED certification or wind mitigation report |
For claimed homes, much of this is already documented in your Pearl Snapshot. For unclaimed homes, the Snapshot provides a baseline, and these questions fill the gaps. Either way, you arrive at a showing knowing more than the listing provided.
Use this sequence for any home you are seriously considering.
| When | What to do | What you learn |
|---|---|---|
| Before the showing | Look up the address at pearlscore.com | Pearl SCORE, five-pillar breakdown, claimed status, operating cost vs. similar homes |
| During the showing | Work through the invisible checklist | Radon results; HVAC age and efficiency rating; duct and air sealing test results; resilience documentation |
| Before your offer | Review cost comparisons | Whether this home costs more to operate than comparable homes nearby |
| Before the offer | Share the Snapshot with your agent | Which pillar scores warrant follow-up questions before you close |
Murphy calls it the single highest-opportunity space in any home. Air sealing, ductwork, insulation, and resilience features can all be addressed there. The most common mistake is adding insulation without first addressing air leaks and poorly connected ducts. Insulation buries those problems rather than solving them. The correct sequence is air sealing and duct connections first, insulation second.1 Ask the seller whether the attic has been professionally air-sealed, and check the Operations and Comfort pillars in your Pearl Snapshot for any documentation.
A home's purchase price tells you what someone paid. It doesn't tell you what it costs to run, how comfortable it stays in August, or how it holds up in a bad storm. Those factors shape what it is actually like to live there, and they rarely appear in a listing.
Pearl has scored every single-family home in the United States, 97 million properties, on safety, comfort, operations, resilience, and energy.2 The data exists before you make an offer. Using it does not require hiring anyone, spending anything, or waiting for an inspector’s report.
That picture is already there, free, before you schedule a showing. It takes two minutes to look up any address at pearlscore.com.
