The practice
A small team with single-point responsibility.
T. KOULIS ENGINEERS is a consulting engineering practice based in Patras. It carries out technical due diligence across Greece, while its design and site work is mainly in Western Greece and the Ionian Islands. Structure, architecture, survey and planning are worked on at the same table, with one responsible engineer for each project.
Team
Who does what.
Theodoros Koulis
Civil engineer (Dipl.-Ing.), founder. Responsible for structural design and assessments, property due diligence and the final sign-off of every deliverable.
Architect
Architectural design, permit packages, legalisation files and documentation for the building authorities.
Civil engineer (BEng)
Drawings, surveys and support for the structural and topographic work.
Partners
When a project needs disciplines we do not cover in-house, such as MEP design, geotechnical investigation or laboratory testing, we work with established external partners. Coordination and responsibility to the client remain with us.
Coordination
How a project is run.
One lead
Every project has one lead engineer, your point of contact from proposal to delivery.
Shared data
Survey, drawings and calculations share one dataset, so structure and architecture never disagree.
Internal review
Critical deliverables are checked internally before they go to the client or the authority.
Regular updates
Short updates at each milestone, in Greek or English.
Founder
THEODOROS A. KOULIS – Dipl. Civil Engineer
Theodoros Koulis gained his first project experience in 2003, contributing to work undertaken by the engineering office of one of his university professors while completing his studies. He established his independent engineering practice in March 2007 and now supports private clients, investors and public-sector bodies.
We treat every project as a long-term investment. Our work combines technical rigour, safety, cost awareness and realistic planning, with continuous support from early assessment and permitting through construction and operation.
Full CV
Civil and structural engineer with project experience since 2003 across building, hospitality, public works and infrastructure assignments in Greece. Combines technical depth, knowledge of Greek regulation and Eurocodes, and advisory experience for investors and companies.
Education
University of Patras, School of Engineering, Department of Civil Engineering
2000–2006
Diploma in Civil Engineering (grade 7.54/10).
University of the Peloponnese, School of Engineering, Department of Electrical and Computer Engineering
2022–present
PhD candidate in computational methods and optimisation.
Professional experience
Antaios Technical Constructions S.A. – Site Engineer (2006–2023)
• Quantity measurement, payment certificates and financial monitoring.
• Technical solutions for building and civil works.
• Site supervision and trade coordination.
• Site-office management and technical records.
• Tender documentation and variation schedules.
• Quality-plan implementation and monitoring.
Building Inspector (2011–present)
• Approximately 40 building inspections.
• Verification against approved designs, permits and planning requirements.
Energy Inspector (2012–present)
• Approximately 35 building energy inspections.
• Energy Performance Certificates.
• Recommendations for energy upgrades.
Civil Engineer – Independent Practice, T. KOULIS ENGINEERS (2006–present)
• 177 property market-value assessments.
• 64 strengthening and repair studies for load-bearing masonry buildings.
• 30 building permits.
• 50 structural design assignments.
• Construction supervision for five hotel projects.
• Ongoing technical support for private clients, investors and companies across Greece.
Research and software development
2003–2006: Software development (C++)
• Finite-element discretisation of arbitrary planar domains.
• Numerical eigenvalue solution for structural dynamics.
• Automated generation of solids for BIM systems.
• Linear structural analysis software.
2021–2022: Numerical methods and optimisation
• Interval algorithms applied to global-optimisation benchmark functions.
• Software development using the C-XSC library under academic supervision.
What we do
- 01Existing buildings: structural assessment, redesign and repairAssessment to the Greek retrofit code (KAN.EPE / EC8-3), vertical extensions, changes of use, damage repair and strengthening. Every decision rests on site inspection, testing and a documented analysis model.
- 02Technical due diligence (DDR) and investment planningFor buyers, investors and clients based abroad: legal status, condition, remediation cost and what the property can actually become, before capital is committed.
- 03Architectural design and deliveryFrom brief and concept to permit and construction: homes, hospitality and renovations, designed together with the structure and the project budget.
- 04Drone and LiDAR surveys of large sites and buildingsDrone photogrammetry, handheld SLAM LiDAR and RTK for plots, estates, hotel complexes and buildings. Faster, more complete capture of geometric data, delivered as orthophotos, point clouds and drawings in the national grid (GGRS87).
- 05Buildability, planning status and permit dossiersWhat can be built, and on what terms: plot compliance, building terms, town plans and land readjustment, forestry, archaeology and shoreline constraints, plus the complete dossier for the permitting authorities.