Commercial Retrofit Consultancy & Asset Decarbonisation
From light refurbishments to full retrofits, HollenPlus creates building upgrade strategies that deliver cost-effective, commercially focused solutions.
Our backgrounds in asset management and project management, combined with energy and ESG expertise, enable us to create high-impact upgrade plans that reduce costs and maximise returns.
Asset-Led Retrofit Aligned with Lease Events
Our background in asset management ensures we deliver the right retrofit strategy at the optimal time.
By understanding the commercial dynamics of every building we work on, we align building upgrades with lease events and void periods, protecting capital value, preserving cash flow, avoiding unnecessary CapEx, and maximising returns.
PAS 2038 Lead Assessment & Level 5 Commercial Energy Modelling
As certified PAS 2038 Lead Assessors, HollenPlus provides the overarching technical governance required to scope, deliver, and verify complex non-domestic retrofit projects.
We bridge the gap between building physics and commercial asset strategy, ensuring every upgrade protects capital value while delivering measurable operational efficiency.
To underpin our retrofit strategies with precise energy data, we provide Level 3, Level 4, and Level 5 Commercial EPC assessments, using advanced Dynamic Simulation Modelling (DSM) for complex or high-value assets.
This core service is complemented by CIBSE TM54 operational energy performance forecasting to close the design-to-reality gap, alongside RICS-aligned Whole Life Carbon Assessments (WLCA) to evaluate embodied carbon and safeguard assets against future stranding risk.
Why use HollenPlus for your building upgrade strategy?
Put simply, we minimise costs and maximise returns.
We treat every project as if the investment were our own. That means relentlessly identifying the most commercially beneficial upgrade opportunities and ensuring every pound delivers maximum return. Our holistic approach brings clarity and certainty from day one.
Strategies aligned to your business plan
We take the time to understand your financial targets, timelines and operational priorities. This ensures every strategy we deliver is intentionally aligned with your business plan, removing the risk of recommendations that aren’t viable to implement.
Better investment decisions
Our methodology assesses all available upgrade pathways and provides clear, commercially driven recommendations. This enhanced accuracy gives asset managers and building owners a much clearer view of performance, enabling smarter decisions around refurbishment, statutory compliance, energy efficiency and ESG improvements.
Future-proofed assets
We deliver solutions that stand the test of time. By staying ahead of technological, regulatory, and market shifts, we align building upgrade strategies with CRREM pathways to eliminate asset stranding risk. We ensure your properties remain resilient, liquid, and fully compliant, strengthening performance and protecting capital value over the next 10 to 20 years.
13x Scenarios to consider a Building Upgrade Strategy
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When preparing for a CAT A refurbishment, amenity upgrade or full retrofit, a detailed building upgrade strategy ensures improvements are commercially justified, technically deliverable and aligned with market expectations.
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For buyers, an upgrade strategy provides forward-looking insight into future risks, hidden costs and essential improvements, ensuring acquisitions are accurately priced and investment ready.
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When setting annual or multi-year capital budgets, an upgrade strategy provides clarity on priorities, helps avoid wasted spend, and ensures investment aligns with long-term asset plans.
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When lease breaks, expiries or prolonged vacancies occur, an upgrade strategy helps reposition the space, attract stronger tenants, and align improvements with upcoming leasing opportunities.
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As MEP, HVAC, roofs, plant or façade systems near end of life, a coordinated strategy ensures replacements are efficient, well timed and integrated, avoiding expensive reactive repairs and downtime.
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Investors and occupiers with net zero or ESG commitments need a clear roadmap that sequences upgrades correctly, balances cost and carbon impact, and delivers measurable progress.
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If EPC ratings are low or upcoming regulations could limit leasing activity, a structured plan is essential to identify the most cost-effective upgrades to remain compliant and protect asset value.
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To access lower-cost lending or sustainability-linked financing, buildings often need improved ESG performance. An upgrade strategy outlines the required steps and the commercial benefits of meeting those standards.
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Owners and asset managers planning 10 to 20 years ahead need clear visibility of future risks, system lifecycles and investment priorities to ensure assets remain competitive and resilient.
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High energy use, poor comfort levels, maintenance issues or system failures indicate deeper performance problems that a structured upgrade plan can resolve with targeted, long-term solutions.
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Modern occupiers demand efficient, comfortable and ESG-aligned spaces. A building upgrade strategy identifies what changes are needed to meet those expectations and retain high-quality tenants.
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HollenPlus advises owners on how they should require capital contributions are spent, to achieve the greatest commercial benefit for the asset.
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If rental levels, occupancy or valuation are lagging the market, targeted upgrades can enhance building quality, reposition the asset competitively, and unlock income or capital growth.
At HollenPlus, we see every building as a source of hidden value and unrealised opportunities. Our strategies are designed to maximise returns, improve efficiency, and future-proof your assets. We combine technical expertise, commercial insight, and practical delivery experience to ensure every investment works harder for you.
Whether you are planning upgrades, meeting ESG targets, or strengthening your market position, we create clear, achievable strategies tailored to your goals.
Get in touch today and discover how HollenPlus can help you unlock value, reduce risk, and deliver measurable returns for your building.
Speak to a Partner today about your commercial retrofit project…
