Hg Puts Street Group at £200m+: The PE Bet That AI Will Rewire UK Agency
Manchester's Street Group has been valued at over £200 million after a £7m growth investment from private equity firm Hg - a signal that institutional money is now pricing AI capability, not just lettings volume, as the core asset in UK residential property tech.
Private equity rarely bets small on software it believes will become operational infrastructure. So when Hg, the London-based firm with over $110 billion in assets under management, allocated £7 million to Manchester's Street Group through its Mercury Fund this morning, the valuation stamp it applied, north of £200 million, matters as much as the cheque.
Street Group is not a portal. It is not a marketplace. It is, increasingly, the operating system sitting underneath thousands of UK estate and letting agency branches.
What Street Actually Sells
Founded and led by siblings Tom and Heather Staff as co-CEOs, Street has built an integrated stack spanning Street.co.uk (its core CRM), Spectre (prospecting and lead generation), and, most recently, Cortex: a product that lets agency customers build and orchestrate their own AI agents inside existing workflows. Cortex launched in April 2026 and had more than 300 agencies preparing to go live within weeks. The platform handles enquiry triage, client communications, viewing bookings, tenancy lookups, and branded document generation, all without human input in the loop.
The pricing is deliberate. Cortex starts at £149 per month, cheap enough that a single-branch independent can justify it, scalable enough that a 50-branch regional group generates meaningful recurring revenue for Street. Token costs accrue on top, which means agents should model total cost of ownership carefully before committing, a point some trade commentary has flagged.
One governance wrinkle has drawn scrutiny. Observers at Estate Agent Today and Letting Agent Today have pointed out that where AI-generated communications are not logged, attributable, and reviewable, the liability sits with the agency rather than the platform vendor. The Property Ombudsman and ICO are both moving towards mandatory disclosure. Street's current position on that question will come under pressure as regulatory expectations sharpen.
Why Hg, Why Now
Hg specialises in vertical software buyouts. Its portfolio includes Visma, Access Group, and IFS. The Mercury fund targets lower mid-market software businesses that own workflow-critical positions in their sectors. Street fits that template almost exactly: once an agency's pipeline data, tenancy records, and client communications are inside Street's CRM, switching costs are high and data network effects compound.
The £200 million valuation is not for a listings platform. It is for a firm that has quietly positioned itself as the nervous system of UK residential agency at exactly the moment AI is making that nervous system expensive to replicate from scratch.
The Market Context Behind the Number
The timing is not coincidental. The Alto 2026 Agency Trends Report found that over half of UK estate agents plan to adopt AI tools for listings, lead generation, and marketing this year, with two-thirds expecting to use compliance automation to manage growing regulatory demands. Nearly nine in ten larger agencies are planning AI adoption, while smaller independents risk being left behind unless uptake accelerates. Street's model, selling AI tooling as a layer on top of an existing CRM, is structurally well-placed to capture both cohorts.
Raw formation data tells a more cautious story about the sector's underlying health. AIBD analysis of Companies House data shows just 2,584 new SIC 68.20 (residential lettings) companies incorporated in Q3 2026, down 82.7% on the prior period. Trademark filings in Class 37 fell 77.2% to 400 in the same quarter, per IPO data. Perhaps most telling: 99.6% of active SIC 68.20 companies hold no Class 37 trademark at all, a structural indicator of how fragmented and brand-thin the independent letting agency market remains. Source: AIBD analysis of Companies House and IPO data, as of July 2026.
That fragmentation is Street's opportunity. A sector where almost no operator has invested in brand protection is a sector ripe for a technology platform to define what quality looks like.
The AI Roll-Up Pattern, Compared
Street's approach is software-led, but it is not the only model in play. Dwelly, the AI-first lettings platform founded by former Uber and Gett executives, has pursued a direct acquisition strategy: buying independent agencies outright, integrating its AI platform, and targeting the £100 billion UK lettings market through ownership rather than licence fees. After a £69 million funding round in February 2026, Dwelly completed its sixth acquisition by June and now manages over 10,000 properties, placing it among the UK's 15 largest letting agents by units under management.
Two very different theses. Dwelly owns the asset. Street owns the tooling. Both are betting that AI, embedded in daily agency operations rather than bolted on as a dashboard, is where the durable margin sits.
Hg's £200 million valuation on Street is the clearest institutional confirmation yet that the market agrees with the latter framing. Whether Cortex can sustain that multiple as governance expectations tighten is the question to watch.