CoStar Group delivered an exceptionally strong Q1 2026, with revenue up 23% year-over-year to $897 million (10% organic) marking a 60th consecutive quarter of double-digit growth, and adjusted EBITDA doubling to $132 million, $17 million above the high end of guidance. The commercial segment grew 15% at a 34% margin while residential improved adjusted EBITDA by $56 million and remains on track for profitability in Q2. Management raised full-year adjusted EBITDA guidance to $780 million to $820 million and adjusted EPS to $1.32 to $1.39 while reaffirming revenue of $3.78 billion to $3.82 billion. The dominant analyst debate centered on net new bookings, which declined sequentially for a third straight quarter to $67 million despite a much larger sales force, with management attributing the pattern to seasonality and hiring lag. Key growth narratives included Homes.com monetization ahead of a May 1 price increase, LoopNet asset-based pricing driving explosive listing growth, and Matterport as an increasingly central data and product differentiator.
Hello everybody, and welcome to the CoStar earnings call for Q1 2026. Thank you all for joining us. Before I turn the call over to Andy Florance, CoStar Group's CEO and founder, and Christian Lown, our CFO, I'd like to review a few of our safe harbor statements. First of all, certain portions of the discussion today may contain forward-looking statements. The company's outlook and expectations are based on current beliefs and assumptions. Forward-looking statements involve many risks, uncertainties, assumptions, estimates, and other factors that can cause actual results to differ materially from such statements. Important factors that can cause actual results to differ include, but are not limited to, those stated in CoStar Group's press release issued today and in our filings with the SEC. All forward-looking statements are based on the information available to CoStar Group on the date of this call.
CoStar Group assumes no obligation to update these statements, whether as a result of new information, future events, or otherwise. Reconciliations to the most directly comparable GAAP measure of any non-GAAP financial measure discussed on this call are shown in detail in our press release issued today, along with the definitions for those terms. The press release is available on our website, located on costargroup.com under Press Room. Please refer to today's press release on how to access the replay of this call. Remember, one question during the Q&A session. Make it a good one. With that, I'd like to turn the call over to our Founder and CEO, Andy Florance. Andy?
Thank you, Rich. Thank you for joining us today. I wanna start with 3 things. First, this was an exceptional quarter. We delivered our 60th consecutive quarter of double-digit revenue growth. Our adjusted EBITDA doubled, and we're on track for the highest full-year adjusted EBITDA in CoStar Group's history. Second, the homes.com investment is delivering exactly what we said it would. Member agents are generating extraordinary returns on their subscriptions. Consumer engagement on Homes AI is multiples of conventional residential search, and homes.com is the fastest-growing residential portal in the U.S. I'll walk you through the evidence later in the call. Third, the activist distraction is behind us. With the noise gone, we have more focused energy than ever to spend on what matters, growing EBITDA. Let me take you through the numbers. First quarter 2026 revenue grew 23% year-over-year.
Q1 2026 adjusted EBIT of $132 million doubled year-over-year and came in 26% above the midpoint of our guidance. After a record 2025 for annualized net new bookings, we started 2026 stronger still. Q1 net bookings of $67 million were up 20% year-over-year. We expect productivity to build over the year, particularly from the sales reps we hired throughout 2025. Our commercial business generated $472 million of revenue in Q1, up 15% year-over-year, with adjusted EBITDA of $161 million. CoStar revenue was $331 million, let's get that extra million in there, in Q1, with annualized net new bookings from our core CoStar product up 16% year-over-year.
CoStar users grew 22% year-over-year to 317,000. Sales to brokers and tenants were especially strong, with broker sales up 29% and tenant sales up 27% year-over-year. CoStar NPS was 69, and our quarterly renewal rate was 92%. CoStar Rent Benchmark launches this summer. Drawing on our proprietary lease database and public records, it will be the industry's only net effective rent benchmark product, giving landlords, occupiers, investors, and brokers visibility into starting rents, effective rents, TI allowances, free rents, and escalations across U.S. markets. CoStar New Homes is in development with phase 1 planned for Q2. The module tracks new residential construction from planning through delivery and serves home builders, mortgage bankers, retailers, and retail center owners. It integrates builder feeds, drone imagery, and other data sources to deliver insight into housing supply, demand, and market trends.
CoStar Debt Solutions, formerly CoStar Lender, had a strong quarter, with net new bookings up 26% year-over-year as the business crossed $100 million in revenue. Debt Solutions now serves over 500 financial institutions across the full lender spectrum, including banks, private lenders, debt funds, and regulators. Debt Solutions is on track to launch CRE debt benchmarking in the second half of 2026, with CRE loan origination workflow following in Q1 of 2027. The final product will be a full workflow solution to originate and underwrite a loan. Our first release will focus on seamless delivery of property details, peer properties, and market information. We launched a client advisory committee with over 12 institutions to shape the loan origination roadmap, deepen understanding of how AI is reshaping their workflows, and strengthen product market fit.
Across the platform, Debt Solutions is actively building these AI-enhanced workflows. CoStar U.K.'s growth accelerated in Q1, with revenue up 25% and net new bookings up 44% year-over-year. This growth was supported by the release of new land registry lease modules that gave clients authoritative effective rent data sourced from government records and the recollapse of one of our primary competitors there. CoStar Canada revenue grew 22% year-over-year. We released multifamily analytics coverage for Montreal in Q1. CoStar France launches in Q2. We will cross-sell into the 32,000 French CRE professionals who already subscribe to news and information from our Business Immo acquisition, accelerating adoption as we build the only pan-European CRE data and analytics platform. In CoStar Australia, we are rapidly building proprietary property data with our local research team now approaching 100 people.
We expect to launch CoStar and LoopNet in Australia in Q3 and Q4. CoStar Real Estate Manager added AI lease abstraction capabilities to the Visual Lease platform this quarter and will extend these capabilities to CoStar Real Estate Manager later this year. Customers are eager to bring this best-in-class capability into the lease management and accounting workflows to save them a lot of time and hassle. We're also deploying multiple AI agents internally to accelerate customer onboarding, support enablement, and the automation of reputable professional services work. In Q1, STR launched profitability benchmarking, supporting more than 150 detailed data points across a hotel's P&L. Customer interest was immediate, with 750 hotel subscribers submitting data to unlock the functionality. Building participation at scale is critical to future monetization, and this early engagement reinforces the long-term value of the investment.
LoopNet generated $85 million of revenue in Q1, up 16% year-over-year. Paid listings rose 10% year-over-year in the U.S., 35% in Canada, and 63% in the U.K. Last month, after more than a year of successful testing, we rolled out asset-based pricing across all U.S. markets. LoopNet advertising is now priced to match the size of the asset and the value LoopNet delivers to listers. Early results have been really outstanding. At the high end, the volume of silver listings sold at $300 or above per month grew 650% from February to March.
At the low end, listings sold below $40 grew over 1,100%, opening up an entirely new category of inventory and bringing in smaller advertisers who could not justify the higher price points for one-size-fits-all that we had before. We expect this to drive more listings, more traffic, and more revenue. LoopNet's European revenue grew 17% year-over-year. Following last year's launch in France and Spain, we're seeing the network effects of being the first and only global commercial real estate marketplace. Average monthly unique visitors on LoopNet Europe more than doubled to over 900,000, up 102% year-over-year. These users are not just searching their home countries, they're searching globally. We will extend this network effect as LoopNet launches in Australia, Germany, and other markets.
Our Australia CRE marketing platform, commercialrealestate.com.au, grew 10% year-over-year on a pro forma basis, driven by higher depth revenue, improving depth penetration, and higher average revenue per listing. That commercial unique visitor audience was up 129% year-over-year in Q1. Subscription revenue for Matterport was up 19% year-over-year. Enterprise momentum built through the quarter. New enterprise accounts in March were up 31% year-over-year, and direct sales were up 16%, supported by a healthy and expanding pipeline that continues to build into Q2. Matterport has become a critical point of differentiation across CoStar Group. It drives engagement, lists conversion, and generates valuable proprietary data. Integration is proceeding exceptionally well across Apartments.com, Homes.com, LoopNet, CoStar domain. Matterport is already a key component of Homes AI and will unlock huge future AI innovation all across CoStar Group.
Matterport Exteriors with X-ray, now in alpha, lets users virtually remove a roof or floor of a virtual building to see the building's interior in the context of the yard, the neighborhood. That's a real estate marketer's dream. We've also released a number of new innovations with strong use cases in architectural engineering construction, facilities management, and manufacturing. BizBuySell revenue was $8.8 million in Q1, with broker subscribers, I'm sorry, reporting 2,345 completed sales transactions of businesses, representing $2 billion enterprise value, 59% of which involved commercial real estate. We're rapidly turning BizBuySell into a true end-to-end transaction platform with integrated financing, 3D tours, and document sharing, now driving over 24,000 buyer profiles and 15% broker adoption.
Residential revenue was $421 million in Q1, up 32% year-over-year. Adjusted EBITDA improved by $56 million, and we expect the residential segment to reach profitability in Q2 2026. Apartments.com generated $312 million of revenue in Q1, up 10% year-over-year, the 15th consecutive quarter of double-digit revenue growth. Apartments.com delivered 220 million highly engaged renter visits, 370,000 tours, and 300,000 applications submitted directly on our platform to apartment owners alongside 40 million Matterport tours. Our monthly renewal rate held at 99%. Apartments.com brand media impressions nearly tripled in Q1, up 189% year-over-year to 1.7 billion. The longer we invest in our brand on behalf of our clients, the more efficiently we deploy that investment.
Clear example, our first-ever co-branded Super Bowl commercial with Homes.com aired on February 8th, reaching 126 million viewers, the highest peak viewership in U.S. media history. Combined with our industry-leading SEO and SEM, these efforts continue to produce the most qualified audience of apartment seekers on the internet. According to Google, overall rental search demand remains soft. Even so, Comscore data shows Apartments.com network unique visitors up 3% year-over-year in March. Zillow unique visitors were down 5% year-over-year, and Zillow's expanded rental network, Zillow plus Realtor plus Redfin, was down 3%. Zillow has now seen unique visitors decline year-over-year for 15 consecutive quarters. Let's make that 15 consecutive months, not 15 consecutive quarters. I was just sort of picking up the 15 consecutive quarters of double-digit growth we had.
Thanks, Andy. In the first quarter of 2026, we delivered $132 million of adjusted EBITDA, doubling the adjusted EBITDA from the first quarter of 2025 and $17 million above the high end of our guidance range. The outperformance in adjusted EBITDA was primarily due to lower personnel costs from cost-saving efforts as we continue to find efficiencies from AI, personnel, and other expense initiatives. OneQ 2026 revenue was $897 million, which was 23% higher year-over-year and toward the high end of our guidance range. Organic revenue growth was 10% for the quarter. Commercial revenue in the first quarter was $472 million, an increase of 15% year-over-year and a 7% organic growth rate.
Our commercial brands delivered revenue in line with the guidance we provided on our February earnings call. CoStar revenue grew 9% to $331 million, driven by strong double-digit international growth. The year-over-year increase was driven by both volume and price. LoopNet revenue was $85 million in Q1, a 16% increase year-over-year or an 11% organic growth rate. The year-over-year growth was attributable to an increase in paid listings from our continued focus on selling silver ads. Other commercial revenue was $56 million in Q1 2026, up 81% compared to Q1 2025.
The year-over-year increase is primarily attributable to the inorganic contribution from Matterport, which has performed well since the acquisition with subscription revenue growth of 19%. Residential revenue in Q1 2026 was $425 million, a 32% increase over last year's first quarter and at the high end of our guidance range. Organic growth for residential in the first quarter was 13%, with double-digit growth contributions from Apartments, Homes, and OnTheMarket. Increased volumes were the catalyst for organic growth in the first quarter. Commercial adjusted EBITDA was $161 million in the first quarter of 2026, a 34% margin and above the high end of our guidance range. Similarly, residential adjusted EBITDA was also better than our guidance range, coming in at negative $29 million.
CoStar posted positive net income and adjusted EPS of $0.23 per share for the first quarter of 2026, both considerably higher than our guidance. Our sales headcount at the end of March was 2,090. Homes.com reps make up our largest sales team, consisting of 570 individuals. Apartments.com is the next largest sales force with 520 reps, with CoStar at 475 reps and 225 at the LoopNet team. For Homes.com reps, we are focused on driving productivity and efficiency in 2026. With our other brands, we will be adding reps throughout the range of the year, given the significant opportunity that still exists across all our brands, and we expect productivity to ramp as our new sales reps mature over the coming years.
Our contract renewal rate has held consistently at 89% for the past 7 quarters. Customers who have been subscribers for at least five years have an impressive 95% renewal rate. Subscription revenue on annual contracts was 73% of total revenue for the first quarter of 2026, compared to 71% during the fourth quarter of 2025. As a reminder, Domain does not operate using annual subscriptions. Net new bookings for the first quarter were $67 million, a 20% increase from the first quarter of 2025. In 2025, we completed our first share repurchase program, buying back $500 million worth of stock or 7.1 million shares. We subsequently announced a $1.5 billion buyback program in January of this year.
Throughout the first quarter, we repurchased 11.4 million shares for $505 million, the majority of which was purchased through an accelerated share repurchase plan. We expect to repurchase an additional $195 million worth of shares during the remaining nine months of the year, bringing our total cash outlay for share buybacks in 2026 to $700 million. For the second quarter of 2026, we expect revenue to range from $922 million-932 million. This range represents an 18%-19% increase over the second quarter of 2025 or a 10% organic growth rate at the midpoint. Commercial revenue is expected to grow between 7%-9% to a range of $479 million-484 million.
We expect residential revenue of $443 million-448 million, an increase of 32%-34% year-over-year or 12%-14% organically. Adjusted EBITDA is expected to range between $160 million and $180 million, representing a margin of 17%-19% or roughly 700 basis points higher than Q2 2025. Commercial Adjusted EBITDA is expected to be between $160 million and $170 million, a margin of 34%-35%. Residential Adjusted EBITDA is anticipated to be positive in Q2 2026, ranging between break even and $10 million. Our Adjusted EPS guidance for Q2 2026 calls for a range of $0.27-0.30 per share on 409 million weighted average shares outstanding.
For full year 2026, we are reaffirming our previous revenue guidance range of $3.78 billion-3.82 billion, a 16%-18% annual growth rate. Commercial revenue remains at a range of $1.955 billion-1.975 billion, and the residential revenue range remains at $1.825 billion-1.845 billion. Based on the strength of the first quarter and the expectation of continued personnel expense efficiencies, we now expect adjusted EBITDA to range from $780 million-820 million. This is an increase of $30 million at its midpoint and a full percentage point increase in margin. Our adjusted EPS range is also increasing for the full year.
The accelerated share repurchase program in the first quarter retired more shares than we had forecast, and the previously mentioned expense reduction initiatives are primarily driving our guidance increase to adjusted EPS. Our new adjusted EPS guidance range is $1.32 to $1.39, an increase of $0.09 at the midpoint. I will now turn the call back over to the operator for questions.