CoStar Group has officially secured its acquisition of Domain Holdings Australia through a binding scheme implementation deed, valuing the Australian property portal at approximately A$2.8 billion (US$1.9 billion).
The all-cash transaction, offering A$4.43 per share to Domain shareholders, marks the culmination of a three-month courtship that began with CoStar’s strategic accumulation of a 16.9% stake in February and represents a substantial 42% premium over Domain’s pre-approach trading price.
“This acquisition establishes CoStar as a genuine global player in residential property portals across three continents,” said an industry analyst who has followed CoStar’s expansion strategy. “It’s no longer just a commercial real estate data company – this completes its transformation into a full-spectrum property marketplace operator.”
The acquisition represents CoStar’s most significant international expansion yet, building upon its 2023 purchase of UK-based OnTheMarket for US$198 million and securing an immediate foothold in one of the world’s most profitable property advertising markets.
Australia’s property portal ecosystem commands an estimated 55% take-rate of the country’s annual A$7 billion property marketing expenditure – widely considered the highest globally. Domain alone generated A$217 million in revenue during the first half of fiscal year 2025, representing a 7.4% year-over-year increase despite relatively flat property listing volumes.
Central to CoStar’s value creation thesis is the integration of Matterport’s immersive 3D scanning technology into Domain’s premium listing tiers. This integration potentially mirrors CoStar’s successful “feature-gate then price-hike” model deployed at Homes.com in the United States.
As the transaction proceeds toward regulatory review and shareholder votes, one certainty emerges: Australia’s property technology landscape has been permanently reshaped, with ripple effects extending across global real estate, media ownership, and digital platform regulation.
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BuiltAPI GmbH, the company pioneering API-driven data infrastructure for real estate investment and asset management, has successfully closed its latest funding round backed by industry leaders including Second Century Ventures, TDS, and Propertymark. The investment marks a major milestone as BuiltAPI expands its services across Europe and the UK, following its graduation from the REACH UK Accelerator Program.
BuiltAPI tackles one of the real estate sector’s most persistent problems: fragmented, siloed data ecosystems. The company provides a robust API framework that enables seamless connectivity between legacy systems, modern SaaS tools, and intelligent automation platforms — with interoperability, governance, and cybersecurity at its core.
“We’re building the backbone of real estate data infrastructure,” said Olga Dentzel, Co-Founder of BuiltAPI. “This funding and the support of the REACH UK program are accelerating our ability to deliver secure, scalable integrations to clients across borders.”
BuiltAPI’s technology is already making an impact with major real estate institutions such as HIH Real Estate and its fund service platform INTREAL, through their digital unit INTREAL Solutions. These collaborations highlight a shared vision for practical and scalable digital transformation in real estate asset and investment management.
“The industry doesn’t need yet another tool — it needs a connective tissue,” added Ivan Nokhrin, Co-Founder of BuiltAPI. “Our mission is to empower real estate professionals to access, share, and act on their data securely and without barriers.”
Graduation from the REACH UK Accelerator — the scale-up program backed by Second Century Ventures – marks BuiltAPI’s official entry into the UK market. The program has played a key role in unlocking investors support and refining BuildAPI’s growth trajectory.
BuiltAPI GmbH, the company pioneering API-driven data infrastructure for real estate investment and asset management, has successfully closed its latest funding round backed by industry leaders including Second Century Ventures, TDS, and Propertymark. The investment marks a major milestone as BuiltAPI expands its services across Europe and the UK, following its graduation from the REACH UK Accelerator Program.
BuiltAPI tackles one of the real estate sector’s most persistent problems: fragmented, siloed data ecosystems. The company provides a robust API framework that enables seamless connectivity between legacy systems, modern SaaS tools, and intelligent automation platforms — with interoperability, governance, and cybersecurity at its core.
“We’re building the backbone of real estate data infrastructure,” said Olga Dentzel, Co-Founder of BuiltAPI. “This funding and the support of the REACH UK program are accelerating our ability to deliver secure, scalable integrations to clients across borders.”
BuiltAPI’s technology is already making an impact with major real estate institutions such as HIH Real Estate and its fund service platform INTREAL, through their digital unit INTREAL Solutions. These collaborations highlight a shared vision for practical and scalable digital transformation in real estate asset and investment management.
“The industry doesn’t need yet another tool — it needs a connective tissue,” added Ivan Nokhrin, Co-Founder of BuiltAPI. “Our mission is to empower real estate professionals to access, share, and act on their data securely and without barriers.”
Graduation from the REACH UK Accelerator — the scale-up program backed by Second Century Ventures – marks BuiltAPI’s official entry into the UK market. The program has played a key role in unlocking investors support and refining BuildAPI’s growth trajectory.
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