top of page

Green Tiger Sustainability Ltd - Our associate partner (affiliate co-owned company)

How our two organisations connect and work in synergy, here’s a brief overview:
Integrated Energy, Sustainability & Retrofit Expertise
 
As a UK/London-based Energy & Sustainability consultancy specialising in planning - helping clients meet national and local policy requirements through technical assessments, modelling, and strategic guidance. When combined with a innov8t IDeAS retrofit services, this expertise becomes a powerful end-to-end solution that supports both future developments and the upgrading of existing buildings.

Together, the two create a unified service:
     - Upfront planning intelligence ensures projects are designed to meet energy, carbon and sustainability expectations from the outset
     - Technical modelling and assessments including Energy & Sustainability Statements, SAP/SBEM modelling, overheating analysis, whole-life carbon reporting, and circular economy strategies - provide the evidence required for planning approval and long-term performance
     - Design and retrofit delivery expertise then transforms these insights into practical, buildable solutions that improve comfort, efficiency, and sustainability in real-world settings

This combined approach bridges the gap between strategy and implementation. Clients benefit from sustainability-led planning support that flows directly into coordinated retrofit design, interior improvements, fabric upgrades, and low-carbon building solutions. The result is a seamless pathway from compliance and policy alignment through to practical, high-quality retrofit delivery - ensuring buildings are both future-ready and beautifully renewed.

Our Mission
To deliver concise, practical, and cost-effective sustainability solutions that help our clients meet and exceed - planning and regulatory targets while advancing the UK's low-carbon future

Our Vision
To be the leading sustainability consultancy in London and beyond - recognised for our integrity, expertise, and commitment to building a greener, more sustainable built environment

Building Regulations
Helping clients meet energy performance standards from Building Regulations to zero carbon compliance with precision and clarity

Planning Policy
In-depth understanding of sustainability and energy planning requirements across all 32 London boroughs and nationwide jurisdictions

Collaborative Approach
We work closely with developers, architects, and local authorities to achieve cost-effective and compliant sustainability outcomes

Design + Performance Focus - 'Designing Spaces That Perform Better and Live Better'
Together, we merge data-driven sustainability solutions with creative retrofit design, ensuring every project delivers maximum energy performance without compromising style, function, or character

Complete Retrofit: Technical Insight + Design Excellence
By aligning sustainability modelling and carbon expertise with innovative interior and architectural design, we provide an end-to-end retrofit service that enhances comfort, efficiency, and long-term value.

Visit our website for more details but also an introduction of a few key projects undertaken and successfully delivered.....Please click link for direct access www.greentigers.co.uk

Our Energy & Sustainability Consultancy Partner

Retrofit Design

Purpose of Retrofit Design - 'Energy Efficiency'

A retrofit design summary details a plan to upgrade an existing building's systems and structure to enhance energy efficiency, comfort, and performance. This involves incorporating modern technology and materials for items like insulation, heating, ventilation, and renewable energy, with a key aim of achieving specified energy outcomes and meeting standards like PAS 2035/2038. A comprehensive retrofit design accounts for the building's unique characteristics, material compatibility, and potential risks, ensuring solutions integrate effectively into the existing fabric
 
PAS 2035/2038 Retrofit Assessments

A PAS Retrofit Assessment is the crucial first step in the PAS framework for improving domestic energy efficiency, providing a detailed, holistic evaluation of a property's current condition, occupants, and energy performance to identify suitable and beneficial retrofit measures. This assessment ensures a "whole-house"  or "whlole-building" approach, preventing common defects like mould and dampness by considering the building's entire system, rather than isolated upgrades. It gathers data for the Retrofit Coordinator and Designer to create a bespoke, long-term retrofit plan, promoting quality, preventing fraud, and leading to a more comfortable and healthier living environment

Key Components of a PAS Retrofit Assessment
A Retrofit Assessor conducts a comprehensive evaluation, which includes:
Occupant Assessment
Condition Survey
Energy Report
Commercial EPCs Summary

Boosting your commercial building's EPC rating can help you lease it successfully and avoid fines up to £150,000. An air tightness test often improves scores by replacing default, less accurate data. With stricter net zero goals approaching in 2030, it's vital to enhance your EPC rating. Our assessors can guide energy assessments and recommend steps for improvement
Home Energy Survey

A home energy survey summary gives a clear snapshot of how energy-efficient a property is and how to improve it. It outlines the home’s insulation, windows, and heating/cooling performance, and provides an EPC-style energy rating (A–G or 1–100). The report highlights recommended upgrades, estimated costs, potential savings, payback periods, and the impact on your bills and carbon footprint. Some surveys also check ventilation to ensure efficiency improvements don’t cause damp or mould.

What it includes:
Energy rating: A quick score showing overall efficiency
Performance assessment: Inspection of insulation, windows, and heating/cooling systems, sometimes using tools like thermal imaging
Cost–benefit breakdown: Expected costs, savings, and payback for each improvement
Actionable upgrades: Clear steps such as insulation, sealing drafts, or system upgrades
Cost & carbon impact: How changes reduce bills and emissions
Ventilation check: Ensures airflow remains healthy after upgrades

How it’s used:
Prioritising improvements based on payback and impact
Understanding overall energy performance before planning major updates
Making informed, cost-effective decisions
Meeting compliance needs, such as EPC requirements for property transactions
Commercial Energy Survey  

If you manage a commercial property and want to reduce energy costs, a commercial energy survey identifies where energy is lost and how to boost efficiency. Our surveys use observational assessments and air tightness tests to pinpoint issues, then apply industry-standard models to suggest targeted improvements. The resulting report outlines options like upgrading insulation, lighting, or heating systems to create a more efficient, lower-cost property. If you plan to seek funding, our reports meet grant application requirements with independent, data-driven energy savings analysis 
bottom of page