PhPm (Passive House Project Management)
I am an independent advisor with over 25 years of experience in civil engineering, sustainable construction, and project delivery. I specialise in Passivhaus, net-zero and retrofit housing, helping clients turn ideas into high-performance, low-energy buildings that are cost-effective and practical to deliver. Having led both public- and private-sector projects, I have a proven track record of reducing costs, improving build quality, and simplifying complex processes. My expertise ranges from design stage reviews through to full project management, with a particular focus on heritage properties and the use of natural, sustainable materials. I work flexibly — offering everything from targeted technical input to full project oversight — A valuable partner for housing providers, architects, contractors, and self-builders who want to achieve ambitious sustainability goals without unnecessary cost or complexity. Consulting Services: -Passivhaus & Net-Zero Delivery – practical support to meet high-performance standards -Design Reviews – improve buildability, cut costs, and enhance energy performance -Retrofit & Heritage Projects – sustainable upgrades with sensitivity to historic fabric -Cost Estimation & Financial Planning – robust, transparent budget management -Tendering & Procurement – preparing, assessing, and managing contractor bids -Contract & Project Management – ensuring delivery on time, on budget, to standard -Self-Build Advisory – tailored guidance for individuals building their own homes -Renewable Energy Integration – solar PV and low-carbon solution
Glandwr Llanveynoe
Longtown
Herefordshire
GB
HR2 0NH
Sole trader
January 28, 2026
Building design/project management
Building/Contracting, Climate Change, Conservation/Heritage, Domestic Retrofit/New Build, Fabric First Approach, Natural Building Materials, Passivhaus, Retrofit
designPH, CarbonLite Award
[email protected]
07976341415
https://www.linkedin.com/in/david-stones-6106b4b/
https://www.linkedin.com/in/david-stones-6106b4b/
DAVID STONES
,Design and Construction Manager
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Phone:
0845 4569773 / 01559 370908
Email: [email protected]
Address:
PO Box 32, Llandysul
SA44 5ZA
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