A timber construction yard with stacked logs, sawn boards and a crane
About us

Construction expertise. Sustainability insight. Enterprise technology.

Built by people from construction, circular economy, enterprise software and sustainable design — turning decades of experience into a platform that makes reuse measurable and valuable.

Why Loop Your Spare exists

The construction industry doesn't need more materials.
It needs better visibility of the ones it already has.

Every day, valuable products or materials sit on projects with nowhere to go — not because they aren't needed, but because nobody knows they exist.

Loop Your Spare was created to change that.

The journey so far
The Idea Begins
Research & Industry Collaboration
Designing the Platform
Live Pilot Projects
Scaling Circular Construction
Why us

Experts in the problem — and in building the fix.

Plenty of people talk about circularity. Fewer have lived the construction reality and can build the technology to change it. We do both.

Construction expertise

Architects, sustainable-design consultants and retrofit specialists who know how sites really run — so reuse is designed for the field, not the boardroom.

Sustainability expertise

Founders and advisors who've spent careers in the circular economy and green building — including a World Green Building Council ambassador and a former IGBC circular-economy lead.

Technology expertise

Solutions architects building AI and data-driven products — so the understanding becomes a platform that measures, reports and scales, not a slide deck.

Our mission

To make product and material reuse the default way construction operates.

We believe valuable products or materials shouldn't become waste simply because they're invisible. Our mission is to help the industry reduce costs, cut carbon and eliminate avoidable waste by making reuse measurable, connected and scalable.

The team

The people closing the loop.

A founding team and advisory board drawn from construction, sustainability, law and software.

Juan A. Morillas
Juan A. Morillas
Co-Founder · Strategy

Architect, entrepreneur and World Green Building Council ambassador with more than 20 years leading circular construction initiatives.

Sergio Rojas
Sergio Rojas
Co-Founder · CTO

20+ years building enterprise software, AI and data-driven products that solve complex operational challenges.

Navneet Kaur
Navneet Kaur
Partnerships & Comms

15+ years in enterprise-SaaS marketing and co-founder of a digital consultancy focused on government transformation — connecting people, partners and ideas.

Marcos Delgado
Marcos Delgado
Commercial & Sales

20+ years scaling SaaS businesses worldwide, building and leading high-performing commercial teams.

Jay Stuart
Jay Stuart
Sustainability SME

40+ years as an architect, sustainable-design consultant and retrofit contractor championing greener building.

Monica Rodriguez
Monica Rodriguez
Finance & Admin

20+ years in banking and financial management, keeping the numbers honest and the business running smoothly.

Advisors
José Luis Castellano
José Luis Castellano
Advisor · Legal & Business

20+ years as an international corporate lawyer and business advisor, ensuring solid legal and commercial foundations.

Recognised across the industry

We're in the rooms where circular construction is being defined.

Member of
We Make Change
ASBP member
Circularity in Practice
IGBC member 2026
Collaborators & partners
Rojas Consulting
Share Your Green Design
Habitat for Humanity Ireland
Signatory & committees
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Signatory — EU Call for Action on Circular Construction
Committed alongside industry to accelerate circular practices across the sector.
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EU High-Level Construction Forum — Task Force on Offsite Construction
Contributing member of the European Commission task force shaping the future of offsite, circular construction.
Partner with us

Advising clients on circularity or sustainability? Let's work together.

We partner with consultants who help clients plan for reuse, circular economy and sustainability. Recommend LYS to your clients, or use it on their projects to record, track and evidence reuse.

Recommend LYSGive clients a free tool to put your reuse and circularity advice into practice.
Use it on client projectsRun pre-demolition audits, inventories and reuse plans in LYS on your clients' behalf.
Report with evidenceShare cost, carbon and waste data from LYS in your client reports and Circular Economy Statements.
Email us about partnering
Contact us

Get in touch.

Questions about LYS, your projects or getting started? Email us and we'll get back to you.

Emailcontact@loopyourspare.com→
AddressLoop Your Spare Limited
51 Bracken Road, Sandyford
Dublin, D18 CV48
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