HOLLEN+

Hollen+ is a boutique real estate sustainability & ESG consultancy, based in Soho. Our solutions help unlock the current viability crisis. We deliver solutions which remove or reduce costs, improve viability, achieve compliance and reduce risk. Our unique asset management first approach maximises rental and capital values, improving total returns. We combine profit with purpose. Commercial properties must adapt or risk obsolescence. Assets below EPC 'B' are already under scrutiny, and the bar is only rising. Our strategies protect and enhance asset value by integrating sustainability into the core of asset planning and decision-making, not as a bolt-on, but as a performance lever. 📈 Our Impact We focus on what matters most: helping you build a compliant, high-performing, and future-ready portfolio. ✅ Improve EPC ratings and comply with MEES now and in the future ✅ Reduce operational costs through smart, data-led energy improvements ✅ Align sustainability initiatives with income growth and asset strategy ✅ Enhance tenant satisfaction and retention through efficient, future-fit buildings ✅ Access green finance and improve institutional investor confidence ✅ Meet Net Zero and ESG disclosure obligations with practical, scalable plans 🔍 An Asset Management-First Mindset We don’t just upgrade assets, we unlock value. Every recommendation we make is grounded in asset management logic: capital allocation that strengthens NOI, boosts valuations, and supports your long-term investment goals. From strategic EPC improvements to portfolio-wide ESG frameworks, we deliver solutions that work for your assets, your strategy, and your stakeholders.