From Sustainability Buzzword to Cost Line: What RICS' New Sustainability Guide Means for Quantity Surveyors

21 June 2026 · 4 min read · CPD & Standards

RICS has published its first global Sustainability Practice for Surveyors guide, accompanied by its 2025 UN Global Compact Communication on Engagement report. Released mid-June, it sets out — in deliberately practical terms — what sustainability now means for every surveyor, regardless of discipline. For quantity surveyors and cost managers, the most useful reframing is also the most uncomfortable: sustainability is no longer a "nice to have" addendum to a cost plan. It is a cost line in its own right, and it falls on us to model it.

What's New, and Why It Matters

There is no shortage of sustainability guidance in the market. What makes the RICS document different is its scope: a single, profession-wide baseline aimed at members, applicants and senior practitioners alike — explicitly designed for the working surveyor, not the sustainability specialist. It does three things we have not seen pulled together in a single RICS publication before:

• Defines four key sustainability issues for surveying practice: climate change mitigation, climate change adaptation and resilience, circularity and resource use, and biodiversity and ecosystem health.
• Introduces a seven-step workflow (context, scope, data and metrics, assessment and analysis, advice, action, and learning) that translates these issues into repeatable professional outputs.
• Makes clear that sustainability is a cross-cutting responsibility, not a delegated specialism — surveyors influence decisions at every stage of an asset's life cycle, from investment and planning through to retrofit, regeneration and end of life.

The QS Angle: Carbon Is a Cost Item

For a cost manager, the most important line in the guide is the implicit one: the same data we use to price a scheme can — and should — be used to price its carbon. Embodied carbon rates, materials quantities, waste percentages, and energy performance assumptions are already in our cost plans. The guide is signalling that RICS expects members to be able to talk about them in both currencies: £/m² and kgCO₂e/m².

This matters for two reasons that come up on every live scheme we work on:

• Funders and acquirers are asking. Most mainstream lenders and a growing number of institutional buyers now request sustainability data alongside traditional QS reporting on development monitoring and pre-acquisition surveys. If we cannot produce it consistently, someone else will — and they will not have the cost context.
• Taxes, levies and compliance thresholds are landing. The Building Safety Levy (live from 1 October 2026) is the most immediate example, but it is one of several cost-and-carbon-touching measures now on the statute book. Whole-life carbon assessments will become a standard pre-planning submission in many local authorities within the next 18 months.

The guide's value is in its honesty: it accepts that short-term decision-making has been the profession's default, and asks surveyors to change how they work, not just what they say. For cost managers, that is a clear professional duty — and a clear commercial opportunity.

Practical Steps for Cost Managers

1. Adopt the seven-step workflow as a checklist. Context, scope, data, assessment, advice, action, learning. Use it on the next feasibility you produce — even informally — to identify where sustainability is currently a blind spot in your reporting.
2. Quantify embodied carbon alongside cost. Pair your elemental cost plan with a kgCO₂e/m² rate for each work section. The data sources are improving rapidly; the RICS cost data sets already in your reference library will take you a long way.
3. Brief your contractors on data they must provide. The guide is explicit that "data and metrics" is a discrete workflow step. Push this expectation into tender enquiry letters now, before the next procurement cycle, so it becomes a default rather than a special request.
4. Add an adaptation line to whole-life cost plans. Climate resilience is the second of the four key issues and is consistently under-costed in appraisals. Start small: factor flood resilience, overheating mitigation, and material durability into 30-year operating cost models.
5. Treat circularity as a cost question, not a design question. Reuse, refurbishment and material passporting change demolition cost, prelims durations, and waste disposal cost. These are QS line items, not architect aspirations.
6. Document your CPD. As a RICS-regulated firm, recording sustainability CPD against the guide's framework is a clean, audit-friendly way to evidence the new professional expectation.

What This Means for Our Clients

For developers, funders and contractors we work with, the practical upshot is straightforward. Cost plans that do not include carbon data, adaptation allowances, and circularity assumptions will, over the next 12-24 months, increasingly be considered incomplete — by regulators, by lenders, and by buyers. Building that into our standard reporting now is cheaper than retrofitting it later.

We have already started. Embodied carbon lines are now standard on our cost plans for schemes over £2m, and whole-life carbon assessments are included on every development monitoring report. The RICS guide does not change our direction; it confirms we are pointed the right way, and gives us a recognised framework to communicate it.

Sources: RICS, Sustainability Practice for Surveyors (June 2026); RICS 2025 UN Global Compact Communication on Engagement report (June 2026); IEMA / UN Environment Global Status Report for Buildings and Construction figures for built environment emissions. This article is for general guidance only and does not constitute legal or professional advice.