Street Group Clears £200m as Hg Backs Manchester PropTech's AI Agent Play

The deal, stripped back

On 22 July 2026, Street Group announced that HgCapital Trust (LSE: HGT) would invest approximately £7 million in the business through the Hg Mercury Fund, alongside other institutional clients, valuing the company at more than £200 million. Financial terms beyond HgT's slice were not disclosed. Alvarez and Marsal advised Street on the transaction.

The valuation matters more than the cheque size. Hg is not a tourist in software; it backs recurring-revenue businesses where the product is genuinely embedded in workflows. Putting a £200m+ mark on a Manchester-headquartered letting-software firm signals that institutional capital now reads UK agency tech as a category rather than a curiosity.

What Street Group actually is

Founded in 2015 by siblings Tom and Heather Staff, who remain majority controlling shareholders and co-CEOs, Street has built what it describes as an integrated operating system for estate and letting agents. The core product is the Street.co.uk CRM. Bolted on is Spectre, a prospecting and lead-generation platform. The newest layer is Cortex, launched in April 2026 and the product most likely to absorb the fresh capital.

Cortex sits above the existing CRM and marketing stack. It enables estate and letting agents and property managers to create, run, and orchestrate AI agents that handle enquiries, client communications, marketing, sales progression, and elements of property management. The business claimed more than 300 agency sign-ups before Cortex had fully shipped. At £149 per month for the base licence, with token costs on top at volume, the unit economics are early-stage but the adoption curve is not.

Heather and Tom Staff said in the announcement: "We built Street to fundamentally change how estate and letting agents work, and AI is central to that mission."

The governance question nobody is pricing in

Cortex raises a compliance issue that the deal coverage largely skips. A Letting Agent Today comparison published in May noted that Street's CEO had stated publicly that disclosure of AI-generated client communications is "up to agents." That position sits uncomfortably with the direction of travel from the Property Ombudsman and the ICO. Every Cortex action that is not logged, attributable, and reviewable is a governance liability on the agency's desk. Hg's due diligence will have seen this; what it does with it post-close is the question.

The broader compliance pressure is real regardless of platform. The Renters' Rights Act 2025 has added complexity that is pushing AI adoption faster than governance frameworks can follow. ARLA Propertymark's own data points to a 34% vacancy rate for negotiator roles, which explains why agents are buying automation tools that would have seemed speculative three years ago.

What the Companies House and trademark data say

The Street deal lands against a striking structural backdrop. AIBD analysis of Companies House and IPO data (as of July 2026) shows 2,782 new SIC 68.20 companies registered in Q3 2026, down 81.4% on the prior period: a sharp contraction in new letting-business formation that suggests incumbents, not new entrants, will capture whatever efficiency gain AI delivers. Class 42 UK trademark filings (tech-services IP) came in at 1,908 in the same quarter, down 74.2%. Most telling: 99.9% of active SIC 68.20 companies hold no Class 42 trademark at all. The sector is operationally dense but IP-light. Street, by contrast, is building proprietary AI tooling and securing institutional capital behind it. That asymmetry is the investment thesis in one number.

The wider roll-up backdrop

Street's deal is not the only capital event reshaping UK letting this year. AI-first acquisition platform Dwelly completed its sixth agency deal of 2026 in June, adding Move Property Sales and Lettings to a portfolio that now spans around 9,000 fully managed properties, claiming a top-15 position in the UK by units under management. The two models are distinct: Street sells software to agents; Dwelly acquires agents and retrofits AI into the back office. Both are consolidation plays, just at different points in the value chain.

UK PropTech funding reached £230.4 million in 2025, up from £192.4 million the year before, even as new company formation slows. The pattern is familiar: capital concentrating in platforms that already have distribution, rather than funding net-new market entrants.

The number to watch

Street now serves thousands of estate and letting agency branches across the UK. If Cortex scales at the rate the company's early sign-up figures suggest, the revenue model shifts from a flat CRM subscription toward a consumption-based AI layer. That is the transition Hg will be underwriting. Whether the governance and disclosure questions get answered before a regulator answers them first is the variable the valuation does not capture.