Independent assessment and validation for your sustainability certificate
Objective assessment, clear communication and a structured route towards submission and quality assurance — with no surprises in the final phase. As an independent assessor I assess your project under BREEAM (In-Use and New Construction) and validate GPR Building calculations.
- Response within 2 working days
Which independent assessment does your project need?
I work solely as an independent assessor — objective, scheme-compliant and without conflicts of interest. Choose the route that fits your project.
BREEAM Assessor
Independent assessment of existing buildings (In-Use) and of new-build and renovation projects, through to submission for quality assurance.
GPR Gebouw Assessor
Independent validation of GPR Building calculations — required since 1 January 2026 for the certificate and for the MIA/Vamil tax scheme.
What an independent assessor does for you
An assessor is the independent party who verifies whether your project meets the formal requirements of the chosen scheme. I assess the submitted evidence objectively, record the assessment correctly and submit the file for quality assurance. I work independently of the project team: no conflicts of interest, but a clear, consistent and defensible assessment. Having worked on both sides of the table, I also understand how experts and project teams operate.
What you can expect from my work as an Assessor
Fast and clear feedback
Assessments are handled efficiently, with clear communication about findings and next steps.
Independent & scheme-compliant
I assess objectively according to the formal requirements of the BREEAM scheme, without conflicts of interest or ambiguity about roles.
Practical understanding of project dynamics
Through experience on both sides of the table, I understand how experts and project teams work.
Clear standards, right from the start
<24h
E-mails answered within one working day
3–5 days
Typical turnaround time for assessment
1 role
Clear division of roles, agreed in advance
0
Surprises in the final phase
Assessed across a wide range of projects and schemes
From offices and hotels to logistics and laboratories — assessed under BREEAM In-Use, BREEAM New Construction and GPR Building.





DC Zijderlaan Dinteloord
SCHEME:
BREEAM New Construction
SCORE:
Outstanding
TYPE
Logistic
BLM Wegenbouw
SCHEME:
BREEAM In-Use
SCORE:
Excellent
TYPE
Office
Rotterdam Science Tower
SCHEME:
BREEAM New Construction
SCORE:
Excellent
TYPE
Office & laboratories
Independent, well-founded and personal
EnviroHill combines my surname with my work: assessing and validating buildings independently, towards a reliable sustainability certificate. As a licensed BREEAM and GPR assessor, I combine a proven track record with short lines of communication and a personal approach.
Want your project assessed or validated?
Leave your email address and briefly describe your project — building type, location, floor area (m²), and whether it concerns a BREEAM In-Use, BREEAM New Construction or GPR Building assessment. The more specific your description, the faster I can send you a suitable quote or schedule a short intro call. I normally respond within two business days.
tchillman@envirohill.com