Investor types
Property developer families
Property developer families are family-owned groups that develop, own and manage property, often over generations. They combine family control and long holding periods with in-house development capability.
What a property developer family is
A property developer family is a family-owned group that develops, owns and manages property, often over several generations. It differs from institutional real estate investors in three ways: the family controls it, it holds property for long periods without a fund life and it has its own development capability. It differs from a single family office because it is an operating business rather than an office that invests the family's wealth. It also differs from a building contractor, because it keeps the completed property and earns rent from it.
For a counterparty the practical consequence is that a developer family acts as both owner and manager. When it brings in outside capital, it typically keeps control of the management of the property.
Scale: what the published accounts show
Family development groups are private companies and only some publish figures, so the sector is best measured through the groups that do. Grosvenor, headquartered in London, publishes an annual review.
| Grosvenor urban property | 2025 | 2024 |
|---|---|---|
| Property assets | £7.7bn1 | £8.2bn1 |
| Assets under management | £9.5bn1 | £10.5bn1 |
| Net assets | £6.0bn1 | £5.9bn1 |
| Financial capacity | £2.3bn1 | £2.0bn1 |
| Economic gearing | 21.9%1 | 25.5%1 |
| Underlying profit | £70.5m1 | £86.4m1 |
Cadogan, which describes itself as a long-term, family-owned property business, owns 93 acres in Chelsea. It reported a portfolio valuation of £5.4bn in its 2023 annual results (2022: £5.1bn) with total income of £216.0m.2 These figures describe individual groups and are not a measure of the sector.
Structures and sub-types
Three kinds of group are common: urban estates that own contiguous parts of a city, mixed-use developers that build and hold commercial property and developers of housing or industrial property. The usual structure is a family holding company with separate arms for property, development and fund management. Grosvenor's structure illustrates the model: the group operates urban property, food and agtech and rural estates businesses, alongside philanthropic support.3 Its Food and AgTech portfolio was valued at £307.9m in 2025.1
Holding property, development and management in separate arms allows a family group to bring outside capital into one part of the business, for example a portfolio of let property, without ceding control of the group as a whole.
Source of capital and investment horizon
Developer families fund themselves from rental income, retained earnings, asset sales, joint ventures and debt. Grosvenor reported progress against a strategy to realise capital to fund and deliver a £6.6bn development pipeline and to expand its lending activities.3 The strategy links the sale of property interests to the funding of new development, a practice known as capital recycling. Grosvenor reduced its economic gearing from 25.5% to 21.9% in 2025 while its financial capacity rose to £2.3bn.1
The horizon is long. Family control and the absence of a fund life mean that property can be held across generations, which is the main difference from a closed-end private equity fund investing in real estate.
How property developer families use private markets
Developer families interact with private markets mainly as sellers of partial stakes and as partners in joint ventures with institutions. On 21 January 2025 Norges Bank Investment Management (NBIM) acquired a 25% interest in a mixed-use Mayfair portfolio from Grosvenor, paying £305.7m and valuing the 2.3 million square foot portfolio at £1,223m. The portfolio carries no debt and no financing was involved. Grosvenor keeps the other 75% and manages the portfolio for the joint venture.4
Transactions of this kind give the institution a minority interest in long-held property and give the family capital to fund its pipeline, while management stays with the family group. Grosvenor's stated aim to expand lending activities shows that some family groups also act as lenders.3
Transaction sizes
The size of a partnership is set by the portfolio offered. The Mayfair joint venture valued the whole portfolio at £1,223m, so the 25% stake cost £305.7m.4 A partner taking a minority stake in a long-held estate is buying a share of a portfolio, not a single building.
How decisions are made
Because the family controls the group, ultimate authority rests with the family's own governance, typically a family-controlled board or trustees working with non-family executives. A decision to sell part of a long-held estate therefore involves the family as well as management.
What property developer families look for in a partner
The Mayfair transaction indicates the terms a family group seeks: the partner was a long-term sovereign investor, it took a minority stake and the family kept the management of the property.4 A partner that requires an early sale or control of management is less suited to this kind of arrangement.
Regulation and governance
Developer families operate under the planning, leasehold and tax regimes of each country where they hold property. Where the group is held through family trusts, trust law and the duties that trustees owe to beneficiaries across generations also shape decisions.
Trends in 2025 and 2026
Grosvenor's 2025 results show how one group fared. Revenue profit moved to a £(23.2)m loss following impairments in North America, while underlying profit was £70.5m.1 The UK business delivered £88.8m of revenue profit and a 5.1% total return.1 Property assets fell from £8.2bn in 2024 to £7.7bn in 2025 and assets under management from £10.5bn to £9.5bn.1
Two wider patterns appear in the published figures: capital recycling to fund development and minority partnerships with sovereign investors, as in the NBIM joint venture.4 Average global occupancy across Grosvenor's portfolio was 97% in 2024.5
Notable examples
| Name | Headquarters | Size | Date |
|---|---|---|---|
| Grosvenor | London | Property assets £7.7bn; assets under management £9.5bn; net assets £6.0bn1 | 2025 |
| Cadogan | London | Portfolio valuation £5.4bn; 93 acres in Chelsea2 | 2023 annual results |
How advisers work with property developer families
Advisers work with developer families at board level, with family representatives, chief executives and investment directors. The documented activity points to two kinds of mandate: raising institutional capital for stakes in existing portfolios (as in the Mayfair joint venture) and sales of non-core property to fund development pipelines. Anglo-Suisse Capital advises on capital raising, M&A and secondary transactions with professional investors.
Frequently asked questions
Do property developer families take institutional partners?
Some do. In January 2025 Norges Bank Investment Management paid £305.7m for 25% of a Mayfair portfolio owned by Grosvenor, which kept 75% and the management.4
How large is Grosvenor?
Grosvenor reported property assets of £7.7bn and assets under management of £9.5bn in 2025.1
How large is Cadogan?
Cadogan reported a portfolio valuation of £5.4bn in its 2023 annual results; it owns 93 acres in Chelsea.2
How do developer families fund development?
From rental income, retained earnings, asset sales, joint ventures and debt. Grosvenor is realising capital to fund a £6.6bn development pipeline.3
Do developer families lend?
Grosvenor has stated an aim to expand its lending activities.3
How did Grosvenor perform in 2025?
The UK business delivered £88.8m of revenue profit, while group revenue profit moved to a £(23.2)m loss after North American impairments.1
What is the difference between a developer family and a single family office?
A developer family runs an operating property business. A single family office manages a family's investments.
Working with Anglo-Suisse Capital
Anglo-Suisse Capital advises companies, fund managers and shareholders on capital raising, M&A and secondary transactions with professional investors in the UK, Switzerland and internationally.
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Sources
- Grosvenor: Annual Review 2025 (2026)
- Cadogan: Cadogan announces 2023 annual results (2024)
- Grosvenor: Grosvenor announces strong financial, social and environmental performance (27 May 2025)
- Norges Bank Investment Management: Fund makes new investment in London (22 January 2025)
- Grosvenor: Annual Review 2024 (2025)
This page is general information for professional investors and is not investment advice. Figures are taken from the sources listed, as at the dates stated.