Investment in energy services company supplying Discovery Park
Sector
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Operations
Timeframe
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2023

In this record
Maritime’s role in the regeneration of Europe’s largest science park also led to an astute investment in an energy services company (ESCO).
Our asset management team took on the day-to-day running of Discovery Park in Kent for a two-year period, creating a strategic masterplan for its ongoing development.
The 220-acre site has 1.5 million sq ft of buildings, warehouses, laboratories and office space, all of which need heating and power.
Situated next to Discovery Park is a biomass heat and power generation plant run by Kent Renewable Energy Limited, which utilises locally sourced wood and forestry products to generate sustainable heat and energy.
Recognising an opportunity, Maritime curated an ESCO, taking a 20% stake in the business that distributes Kent Renewable Energy’s heat and power to the businesses across Discovery Park.
All surplus energy is then sold to the electricity grid under a long-term contract with Engie to power homes across the region.
In 2023 the plant generated 210.8 GWh of energy, equivalent to supplying power to 50,000 homes and saving around 45,000 tonnes of CO2 emissions annually.
Maritime Capital is committed to investing sustainably, as well as diversifying our portfolio when worthwhile opportunities like the ESCO arise.
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At Discovery Park we saw an energy business where others saw only infrastructure, now generating the equivalent power for 50,000 homes. Worthwhile opportunities often sit just outside the obvious.
Key insights
Real estate sits alongside equities, private equity and fixed income in most family office portfolios – but it behaves differently to all of them, and that's exactly why it earns its place.
Real estate is one of the core asset classes in most family office portfolios, alongside public equities, private equity, fixed income and increasingly private credit. Family office asset allocation to real estate has grown in recent years, driven by its long-term yield, its role as a diversifier against public markets, and its suitability for multi-generational holding periods that few other asset classes match.
Family offices typically hold a mix of private equity and direct investments, real estate, public equities, fixed income and alternative investments, with the exact split varying by size, generational stage and risk appetite. Real estate tends to justify its place in that mix for reasons other asset classes don't share: a steady, long-term income yield; a long holding horizon that matches how families think about multi-generational wealth; and enough direct control that a family can shape an asset's performance rather than simply hold a position and wait.
Once real estate earns its place in the allocation, there's a separate question of how to access it – directly, or through a fund or REIT structure. That decision affects fees, control and liquidity in more depth than an allocation discussion needs to cover; the trade-offs are set out in full in our guide to financial planning for property investment. What matters at the allocation level is simpler: direct ownership is what lets a family actively shape a property's performance rather than passively hold a position in it, which is a large part of why real estate earns a place in the portfolio in the first place.
Discovery Park in Kent is a clear illustration of what that control can achieve. Brought under active management, the science park's capital value grew from around £20m to more than £75m over two years – restructuring leases and separating out service charges rather than simply holding the asset and waiting. A passive fund position, with no say over how the asset is run, couldn't have delivered the same outcome.
UK real estate remains a core allocation, but the mix within it is shifting. Portfolios are diversifying into student accommodation, retail parks and leisure assets alongside the more traditional office and residential holdings, and branded hotel and hospitality assets remain in favour where they carry a strong covenant. Family offices weighing new allocations are also factoring in wider considerations earlier than before – joint venture and asset management arrangements, transparency requirements such as the Land Registry's Persons of Significant Control and Overseas Entities registers, and planning and tax implications specific to the deal.
Maritime Capital's own track record reflects the same pattern of diversification: self-storage and leisure conversions such as Storage Box in Hersham, branded hospitality including The Forbury Hotel in Reading and Raithwaite Sandsend in Yorkshire, and retail assets alongside the more familiar office and residential holdings. The common thread isn't the sector – it's a covenant and a business model resilient enough to justify the allocation in the first place.
Few asset classes hold up as well across multiple generations as real estate. A well-managed property can be improved, repositioned and passed down without a fixed exit forced by a fund's term, which matters to families thinking in decades rather than years. That said, realising the benefit depends on active management – a passively held property doesn't generate the same value as one where lease strategy, service charge control and repositioning decisions are being made deliberately.
Hungerford Park shows what that looks like over a genuinely long horizon. Acquired in 2005 as a 300-acre estate, it's been built over two decades into a working farm, a holiday-let business and an events venue – the kind of layered, multi-generational value creation that a fund's fixed term could never accommodate, and that only comes from treating the asset as a long-term project rather than a static holding.
Most family offices don't carry deep in-house real estate expertise alongside their wider investment team, which is why property is often the asset class most commonly brought in through a specialist partner rather than managed entirely in-house. Maritime Capital works alongside family offices and their existing advisers – wealth managers, investment managers and private banks – on the UK commercial property portion of the portfolio specifically, from acquisition through to ongoing asset and property management.
Maritime’s role in the regeneration of Europe’s largest science park also led to an astute investment in an energy services company (ESCO).
Our asset management team took on the day-to-day running of Discovery Park in Kent for a two-year period, creating a strategic masterplan for its ongoing development.
The 220-acre site has 1.5 million sq ft of buildings, warehouses, laboratories and office space, all of which need heating and power.
Situated next to Discovery Park is a biomass heat and power generation plant run by Kent Renewable Energy Limited, which utilises locally sourced wood and forestry products to generate sustainable heat and energy.
Recognising an opportunity, Maritime curated an ESCO, taking a 20% stake in the business that distributes Kent Renewable Energy’s heat and power to the businesses across Discovery Park.
All surplus energy is then sold to the electricity grid under a long-term contract with Engie to power homes across the region.
In 2023 the plant generated 210.8 GWh of energy, equivalent to supplying power to 50,000 homes and saving around 45,000 tonnes of CO2 emissions annually.
Maritime Capital is committed to investing sustainably, as well as diversifying our portfolio when worthwhile opportunities like the ESCO arise.