EPISODE DESCRIPTION A climate-exposed deal is not an uninvestable deal. It is a deal that requires a different capital stack than a climate-resilient one. The climate-adjusted stack must accomplish four things that a standard stack does not: reserve for insurance trajectory over the hold period (not just at origination); reserve for certification capex as a ring-fenced tranche (not a deferrable contingency); build in financing optionality for green mortgage rates and EPC-conditioned refinancing; and stress-test the exit financing assumption for a buyer facing the same or tighter climate-exposed market at the end of the hold.This Strategy & Underwriting brief builds the climate-adjusted capital stack around a specific deal: an 85,000 square foot light industrial and logistics warehouse in a Hertfordshire logistics park, EPC rating D at acquisition, purchased at £14.5 million at a 6.25 percent cap rate. The thesis: reposition to EPC B and access green financing at the Year-3 refinancing window. The conventional stack versus the climate-adjusted stack comparison shows how ring-fencing £850,000 in green capex reserve at a lower LTV (60% vs. 65%) produces a Year-1 DSCR of 1.81x versus 1.67x, a Year-5 DSCR of 1.60x versus 1.48x, and a Year-3 refinancing event that returns approximately £1.8 million of equity to the investor while reducing the ongoing interest cost by 50 basis points.The seven-year return comparison makes the case: conventional stack unlevered IRR approximately 6.5 percent; climate-adjusted stack unlevered IRR approximately 7.0 to 7.5 percent. The 50 to 100 basis point advantage comes from three compounding sources — interest cost reduction on the Year-3 refinanced loan, a wider exit buyer pool compressing the exit cap rate by 50 basis points, and DSCR headroom from lower initial leverage. The word “ESG” is never required at an investment committee meeting.Episode SummaryEpisode 23 is the Strategy & Underwriting brief that bridges Episode 22’s debt market signal analysis with the practical capital structure question: how do you build the stack for a climate-exposed acquisition that captures the green side of the debt market bifurcation from day one? The four requirements of a climate-adjusted stack frame the episode: insurance trajectory reserve, ring-fenced certification capex, green financing optionality, and exit financing stress test.The Hertfordshire EPC D-to-B repositioning deal illustrates the framework with a complete side-by-side stack comparison. The conventional stack: 65% LTV at £9.425M, 5.75% interest-only, Year-1 DSCR 1.67x, Year-5 DSCR 1.48x under insurance stress. The climate-adjusted stack: 60% LTV at £8.7M, £850K ring-fenced green capex reserve, 5.75% IO, Year-1 DSCR 1.81x, Year-5 DSCR 1.60x. The £850K reserve is sized from first principles across six cost components: LED retrofit (£85K), HVAC upgrade (£195K), rooftop solar PV 250kW (£320K), Building Management System upgrade (£95K), EPC/BREEAM certification fees (£35K), and 15% contingency (£109.5K).To access the 5.25% green rate at the Year-3 refinancing, the asset must demonstrate three conditions: minimum EPC B (independently certified), minimum BREEAM In-Use “Very Good” or above, and physical risk certification under ASTM E3429-24 confirming the asset is not in a high-physical-risk category. The certification timeline must be built into the construction schedule from day one. The Year-3 refinancing is the value-creation event — not a financing event.Key TakeawaysA climate-exposed deal is not uninvestable. It requires a different capital stack. The climate-adjusted stack must do four things: (1) reserve for insurance trajectory over the hold, not just at origination; (2) ring-fence certification capex as a structural tranche, not a deferrable contingency; (3) build green financing optionality for EPC-conditioned refinancing; (4) stress-test the exit financing assumption for a buyer facing the same or tighter climate market at hold end.Deal scenario: 85,000 sqft light industrial/logistics warehouse, Hertfordshire logistics park, ~35km north of Central London. Built 2005. EPC D at acquisition. Acquisition price £14.5M at 6.25% cap. Year-1 NOI £906,000. Thesis: reposition to EPC B, access green financing at Year-3 refinancing window.Conventional vs. climate-adjusted stack: Conventional — 65% LTV (£9.425M), no capex reserve, 5.75% IO, Year-1 DSCR 1.67x, Year-5 DSCR 1.48x. Climate-adjusted — 60% LTV (£8.7M), £850K ring-fenced green reserve, 5.75% IO, Year-1 DSCR 1.81x, Year-5 DSCR 1.60x.Green capex reserve sized from first principles: LED retrofit £85K + HVAC upgrade £195K + rooftop solar PV 250kW £320K (£1,280/kW, BEIS data) + Building Management System upgrade £95K + EPC/BREEAM certification fees £35K + 15% contingency £109.5K = £850K total.The Year-3 refinancing value-creation event: after EPC D-to-B upgrade, asset qualifies for green mortgage financing at approximately 5.25% —...
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