The relationship between flexible workspace operators and their tenants is entering a new phase. For the first wave of mid-market firms that adopted co-working as a growth strategy, the initial cost and flexibility advantages are eroding. Operators, under pressure to improve margins, are raising rates on mature tenants who have outgrown hot desks and small private offices. This creates a strategic inflection point: renew at a higher price point or migrate to a conventional private lease.
This article examines the migration curve, the pricing dynamics driving it, and the commercial implications for occupiers, operators and landlords.
The Mature Tenant Problem
Flexible office operators such as WeWork, IWG (Regus, Spaces) and Knotel built their business models on short-term, all-inclusive memberships. For early-stage companies, this model offered low commitment and predictable costs. However, as those companies grew to 20, 50 or 100 employees, their needs changed. They required more space, greater privacy, dedicated infrastructure and longer planning horizons.
Operators, meanwhile, face their own margin pressures. Industry data from JLL and CBRE indicates that average co-working occupancy costs have risen 15-25% since 2021 in major UK markets, driven by higher service charges, energy costs and landlord rent reviews. Operators are now less willing to absorb the cost of servicing a large, customised floorplate for a single tenant at the rates originally negotiated three or four years ago.
The result is a pricing re-set. Tenants that signed in 2020 or 2021 are being offered renewal terms that are 20-40% higher per desk, depending on location and fit-out quality. For a 50-person firm in central London, this could mean an annual cost increase of £100,000 or more.
The Migration Curve
The decision to stay or leave is not binary. Our analysis identifies three distinct phases on the migration curve:
Phase 1: Rate Shock and Negotiation (0-6 months before lease end). Tenants receive renewal proposals with significant increases. Many attempt to negotiate, but operators have limited flexibility because their own costs are fixed. Some operators offer a 'loyalty discount' of 5-10%, but this rarely closes the gap.
Phase 2: Search and Comparison (3-9 months before lease end). Tenants begin evaluating alternatives: direct leases in Grade A buildings, serviced offices from smaller operators, or hybrid models combining a small co-working membership with a private office elsewhere. This phase is resource-intensive. Mid-market firms often lack dedicated real estate teams, so the search falls to founders or finance directors.
Phase 3: Decision and Execution (1-3 months before lease end). The firm either signs a new operator agreement at the higher rate, commits to a direct lease (typically 3-5 years), or adopts a hybrid solution. The choice depends on growth trajectory, capital availability and risk tolerance.
Why It Matters
For mid-market firms, office costs are typically the second-largest fixed expense after payroll. A 30% increase in occupancy costs can directly reduce EBITDA by 2-5%, depending on the sector. The timing of the lease decision also affects hiring plans, remote work policies and company culture.
For operators, the migration curve represents a churn risk. If too many mature tenants leave, occupancy rates fall and the economics of large buildings deteriorate. Operators are therefore experimenting with 'graduation' products: longer-term, lower-service leases within their buildings that sit between co-working and a direct lease. IWG's 'Regus Express' and WeWork's 'WeWork Private' are examples, though adoption remains limited.
For landlords, the migration curve creates an opportunity. Mid-market firms that leave co-working are often ready to sign direct leases, but they need smaller floorplates (2,000-10,000 sq ft) than the institutional market typically offers. Landlords that can provide fitted, flexible direct space at competitive rents may capture this demand.
Commercial Impact
The commercial impact is most acute in three areas:
1. Occupier cost inflation. Mid-market firms that renew at higher rates will see their occupancy costs rise faster than revenue growth, squeezing margins. Firms that migrate to direct leases may achieve lower per-desk costs (typically 15-25% less than co-working for equivalent space) but must accept longer commitments and higher fit-out costs.
2. Operator revenue mix. Flexible operators are shifting from high-volume, low-margin memberships to lower-volume, higher-margin enterprise accounts. This reduces churn but increases dependency on a smaller number of large tenants. If those tenants leave, the revenue impact is severe.
3. Landlord leasing strategy. Landlords that offer 'plug and play' fitted space with flexible lease terms (1-3 years) are seeing stronger demand from mid-market firms. This product type commands a 10-15% rent premium over shell space, according to Savills data, and reduces vacancy risk.
Risks / Unknowns
Several factors could alter the migration curve:
Economic slowdown. If the UK economy enters a recession, mid-market firms may delay lease decisions, opting to renew co-working agreements at higher rates rather than committing to a long-term lease. This would reduce migration velocity.
Remote work permanence. If hybrid work becomes more entrenched, some firms may reduce total office space, making co-working more attractive despite higher rates. This could flatten the migration curve.
Operator financial stability. The flexible office sector remains capital-intensive and debt-dependent. A major operator default could flood the market with sublease space, depressing rents and altering the pricing calculus for tenants.
Regulatory changes. The UK government's proposed reforms to business rates and energy efficiency standards (MEES) could increase occupancy costs for both operators and direct tenants, affecting the relative attractiveness of each option.
FY Outlook
Over the next 12-18 months, we expect the migration curve to steepen. Mid-market firms that have been in co-working for 3-5 years will face the most significant rate increases, and many will choose to leave. Operators will respond by launching more 'graduation' products, but these will not fully stem the outflow.
Landlords that offer fitted, flexible direct space will benefit most. We anticipate a 20-30% increase in leasing activity from mid-market firms in this segment by mid-2025, concentrated in London, Manchester and Birmingham.
For occupiers, the optimal strategy is to begin the search process 9-12 months before lease expiry. This allows time to negotiate, compare options and avoid a rushed decision that locks in higher costs for 3-5 years.
Conclusion
The co-working to private office migration is not a trend; it is a structural shift in how mid-market firms occupy space. The pricing dynamics are clear, the commercial implications are material, and the window for optimal decision-making is narrowing. Firms that treat office lease decisions as a strategic priority rather than an operational afterthought will be better positioned to manage costs and support growth.
Source notes: This analysis draws on published market reports from JLL, CBRE and Savills, as well as editorial observation of lease negotiation patterns in UK markets. Specific pricing data is illustrative and based on typical ranges reported in industry surveys. No proprietary operator data was used.
