Retrofit, Repurpose, or Rebuild? Rescuing stranded CRE assets across Europe

► Structural Obsolescence in CRE

Commercial real estate conversions and asset repositioning strategies are increasingly driven by structural obsolescence rather than speculative market timing. The fundamental question facing property owners is whether the original use case for an asset remains viable in today's market. 

Across Europe, approximately 80% of current commercial office stock is functionally obsolete regarding modern energy performance standards, forcing investors to choose between substantial Capex reinvestment or steep valuation write-downs. 

Converting redundant office blocks, obsolete department stores, and underutilised parking facilities into alternative uses offers compelling path-to-alpha opportunities, but physical suitability remains a severe constraint. 

Fewer than 30% of existing commercial structures possess the requisite floor-to-floor heights, structural grids, facade flexibility, or floorplate depths necessary for viable change-of-use schemes. While ceiling heights rarely derail a conversion on their own, building depth poses a severe physical challenge, particularly in deep-floorplate department stores. 

To overcome excessive building depth, developers must either cut costly void spaces and lightwells into structural cores or secure specialised operators who can effectively utilise windowless interior layouts.

► Design Flexibility

To unlock conversion potential, investors and sponsors must adopt operational flexibility rather than adhering to rigid, pre-conceived product templates. 

Evaluating a broad spectrum of end uses, including Purpose-Built Student Accommodation (PBSA), Build-to-Rent (BTR) residential units, serviced apartments, coliving, and hospitality, allows developers to align spatial characteristics with market demand. 

Beyond retrofitting legacy stock, forward-thinking developers are actively future-proofing new commercial developments from inception. 

By incorporating adaptable structural frameworks and securing dual-track or double-destination building permits during initial planning, developers ensure that new office buildings can easily transition into residential or alternative uses should occupier demand shift over time.

► Underwriting and Structuring

Underwriting asset conversion projects requires navigating a multi-layered matrix of execution risks, encompassing urban planning delays, construction cost inflation, interest rate volatility, and shifting exit cap-rate movements. 

Time delays present a particularly dangerous hazard, as extended licensing and construction schedules dilute project Internal Rate of Return (IRR) metrics and heighten exposure to shifting macroeconomic yields. 

Rather than relying solely on increased loan pricing or wider interest margins to compensate for execution risk, debt and equity providers insulate capital stacks through rigorous deal structuring. Lenders prioritise solvent and highly liquid sponsors who maintain the capacity to inject additional equity if unexpected project costs arise. 

Structuring safeguards include milestone-linked capital drawdowns, legally binding Letter of Intent (LOI) agreements to secure deferred equity commitments, fixed-price contractor agreements with guaranteed completion dates, and minimum contingency buffers of 5% to 10% on total Capex.

► Construction Bottlenecks

Project delivery faces persistent operational friction due to a systemic shortage of skilled construction labour across Europe, where a deficit exceeding 2 million workers severely restricts trade availability. 

Traditional General Contractor (GC) models, which rely on rigid sub-contracting structures and standardised construction workflows, frequently struggle with the bespoke complexities of retrofit projects. 

Converting existing structures routinely uncovers unexpected site conditions, including discrepancies between physical layouts and historical blueprints, inadequate acoustic or thermal insulation, and compromised legacy cabling. 

Consequently, sponsors often achieve better execution by engaging specialised fit-out contractors or breaking works into trade-specific packages, gaining direct oversight and operational agility. 

Long-term labour supply remains constrained because European educational systems predominantly direct younger generations toward university degrees in financial or legal services rather than vocational trade apprenticeships.

► Operational Resilience

Mixed-use repositioning strategies that combine residential, hotel, office, gym, and amenity spaces are gaining significant momentum across primary markets. 

Repositioning underutilised spaces, such as multi-storey car parks or vacant ground floors, into vibrant mixed-use hubs creates diversified income streams that bolster asset resilience. 

Multi-tenant revenue models allow owners to capture operational upside through flexible workspace or hospitality fees while maintaining stable long-term cash flow from traditional leases. 

Due to operational real estate’s requirement for continuous active management rather than passive oversight, sponsors must deploy specialised operating teams capable of managing dynamic asset lifecycles and preserving tenant retention over extended holding periods.

► Regulatory Friction and Stranded Risk

Regulatory environments exert a powerful dual influence on asset repositioning outcomes, and Europe’s diverse national policies require careful consideration. 

Streamlined national frameworks foster high conversion rates, as demonstrated in the Netherlands, where change-of-use projects account for roughly 15% of total residential housing delivery. These mechanisms, such as Permitted Development Rights (PDR), can significantly accelerate conversion pipelines. 

Conversely, local planning friction, conflicting administrative mandates, regulatory overlays such as post-Grenfell safety rules in the UK, and strict municipal social housing quotas, such as Parisian policy rules requiring social housing contributions, frequently delay development timelines and erode project viability. 

Properties that are physically or economically unsuited for conversion face severe valuation markdowns and risk becoming stranded assets burdened with ongoing carry costs, including property taxes, security, and maintenance. 

Given that institutional core buyers remain hesitant and exit liquidity for traditional commercial space remains tight, sponsors must ensure execution strategies are backed by strong asset management capabilities, enabling properties to generate sustainable cash flows until institutional core liquidity restores.

► Conversion Conclusions

Looking ahead, commercial asset conversion will increasingly transition from an opportunistic niche into a fundamental requirement for urban capital preservation. 

With structural obsolescence accelerating across legacy office stock, market success will separate agile, operationally-minded sponsors from passive asset managers unable to navigate execution risks. 

The trajectory of change-of-use delivery will largely be dictated by municipal policy; jurisdictions that modernise planning frameworks and offer targeted subsidies will unlock critical liquidity and housing supply, whereas uncooperative administrative environments will face an accumulating burden of stranded, loss-making properties. 

As core capital gradually returns to the market, the developers best positioned to capture long-term value will be those who prioritise physical flexibility, mixed-use diversification, and operational partnership, ensuring that both existing retrofits and new developments can dynamically withstand future economic and demand shifts.

► Discover upcoming GRI Institute Europe gatherings where you can join the conversation:
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These insights were shared at the Conversions & Repositioning panel at Europe GRI 2026 - Summer Edition, moderated by Ioanna Paschalidou (Henderson Park Capital), with panellists Alex Smertnik (Verivia), Benjamin Albrecht (Aroundtown SA), Benjamin Richard (Aareal Bank), and Paula Albaladejo (JLL).