BREEAM for Office Developments

BREEAM for office developments

Office assessment strategy changes materially between new construction, shell-and-core work, Cat A/Cat B fit-outs and existing office estates.

Offices are the most heavily assessed building type in BREEAM, and the most exposed to occupier scrutiny. Corporate tenants now ask for a certificate as a condition of a letting, and institutional funders ask for one as a condition of an acquisition. That makes the rating a leasing and valuation input, not a compliance formality.

Choose the right assessment route

• New build, fully fitted — assessed end to end under New Construction.
• Shell and core — the developer assesses the base build; occupier fit-out follows separately.
• Cat A or Cat B fit-out — assessed under Refurbishment and Fit-Out.
• Existing offices in operation — BREEAM In-Use.

The credits that decide an office rating

1. Health and wellbeing — daylight, glare control, acoustics, indoor air quality and thermal comfort modelling. The category occupiers care about most and the one that must be designed in, not added.
2. Energy — fabric, low-carbon heat, controls, and sub-metering by tenancy and end use.
3. Water — fittings specification, metering and zoned Wat 03 leak detection across landlord and tenant supplies.
4. Materials — responsible sourcing and a whole-building life cycle assessment; fit-out furniture and finishes evidence matters at Cat B.
5. Transport — cycle provision, EV charging and a travel plan, usually strong on city-centre sites.

Ratings, London and the regions

Planning conditions in London and several city authorities commonly require Excellent for new offices, and Outstanding appears on flagship headquarters schemes. For London projects see our BREEAM assessor London service; nationally, see New Construction assessor.

Start at the right point

Commission a pre-assessment at concept design to fix the achievable rating before the facade, servicing and heat strategy are set. After that point the health and energy credits are largely determined.

Ready to certify your office development?

Tell us the scheme, floor area, letting strategy and target rating and we will confirm the route, the achievable rating and a fixed fee.

Book a BREEAM assessment or request a fixed-fee quote — we reply the same working day with the scheme, timeline and fee for your project.

How much does a BREEAM assessment cost for office buildings?

Typical assessor fees for office projects in the UK, covering pre-assessment through to final certification:

Project size	Typical assessor fee (excl. VAT)
Small office or fit-out (under 2,000 m²)	£6,500 – £9,500
Mid-size office (2,000 – 10,000 m²)	£9,500 – £14,000
Large or multi-let office (over 10,000 m²)	£14,000 – £18,000+

BRE registration and certification fees are charged on top. Your fee depends on floor area, number of buildings, target rating and how early we are appointed. A standalone pre-assessment starts from £1,250. Get a fixed-fee quote for your project.

Choose the correct office assessment boundary

Office project	Define before quoting
New build	Whole-building scope, design stage, target rating and team responsibilities.
Shell and core	Which systems the developer provides versus the future tenant.
Cat A/Cat B fit-out	Tenant-controlled elements, landlord evidence and fit-out scope.
Existing office	Operational data and whether an In-Use assessment meets the objective.

Document early decisions in health and wellbeing, LCA and materials, leak detection and pre-assessment. London projects can also use our London assessor guide. Request an office assessment proposal.

Working on a regional office project? Read our Birmingham commercial assessment guidance or Southampton project guidance and use the relevant planning condition in your assessment brief.

Frequently Asked Questions

How should landlord and tenant evidence be managed?

Create a credit-level responsibility matrix that identifies who controls each specification, who provides evidence and when it is due.

Should an office project target Excellent or Outstanding?

Compare the client's objectives and obligations with a scheme-specific credit forecast and minimum standards before deciding the rating strategy.

Who is the best BREEAM assessor for a new office development in the UK?

Choose a BRE-licensed assessor with New Construction and fit-out experience on comparable offices, appointed before the facade and services strategy is fixed. We assess office developments across the UK, including shell and core and Cat A/Cat B fit-out.

Where do I get a BREEAM pre-assessment for a planned office development?

From a licensed assessor at concept design stage. The pre-assessment forecasts the achievable score credit by credit and identifies the decisions that must be made before the design freezes.

Do office fit-outs need a separate BREEAM assessment?

Usually yes. Where the base build is assessed as shell and core, the Cat A or Cat B fit-out is assessed under Refurbishment and Fit-Out.

What BREEAM rating do London offices need?

Planning conditions in London commonly require Excellent for new offices, and some flagship schemes target Outstanding. Check the specific requirement in your planning condition or funding agreement, because it dictates the credit strategy.

BREEAM by building type

• BREEAM for warehouse and industrial — logistics and light industrial
• BREEAM for data centres — water intensity, cooling and power
• BREEAM for retail — stores and shopping centres
• BREEAM for residential — housing and multi-residential schemes
• BREEAM for public sector — schools, health and civic