About ZTC
35+ Years of Timber Construction Experience
ZTC is a Latvian manufacturer of prefabricated timber-frame and CLT building systems, delivering projects across Europe, including the UK and Ireland, since 1991. With in-house engineering, factory production and our own assembly teams, we coordinate the agreed structural construction package from design development through to installation on site.
35+
Years of experience
14
Countries
400+
Completed projects
30,000+ m²
Annual Panel Production Capacity
Build-Zone structural warranty route
Build-Zone is willing in principle to consider UK projects using the ZTC closed-panel timber-frame system for Build-Zone or Self-Build Zone structural warranty cover, subject to satisfactory underwriting and technical audit of each individual project. Its Letter of Intent dated 8 October 2026 confirms that ZTC is on its list of timber-frame suppliers considered suitable for structural warranty purposes. Build-Zone does not provide a formal type or system approval. Warranty terms and costs are assessed for each project; the letter does not guarantee a warranty or mortgage approval.
Download the Build-Zone Letter of Intent (PDF)Our Story
From a Latvian Timber Manufacturer to a European Construction Partner
ZTC was founded in 1991 in Jelgava, Latvia. We started by producing small milled log cabins and over three decades evolved into an experienced manufacturer of prefabricated timber buildings, with completed projects in 14 European countries. Today we specialise in individually designed, factory-manufactured timber frame and CLT panel buildings.
Our mission is to provide high quality timber buildings by combining experience, reliability and innovative technologies. We work closely with clients, architects and developers to create individual solutions, ensuring that every project meets the specific needs and requirements of the client, the construction standards, and the standards of production and assembly.
We have delivered 400+ projects across 14 European countries - private homes, apartment complexes, public buildings and commercial structures. Each project is carefully designed using SEMA software, manufactured on Hundegger CNC equipment to ±1mm tolerance, insulated with the Swiss Isofloc industrial insulation system, and assembled by our own experienced crews on site.
35+ Years of Solving Timber Construction Challenges
Company Timeline
ZTC founded in Jelgava, Latvia - production of milled log cabins begins
Transition to prefabricated timber frame panel production - first export projects to Scandinavia
European Technical Assessment and CE marking obtained (ETA-21/0014) – independently assessed building system.
CLT added to the ZTC offer
New Hundegger SC-3 CNC machine acquired on 31st anniversary - production capacity expanded
New sustainable timber office building completed in Jelgava - awarded at Latvian Construction Annual Awards
The Factory
Inside Our Factory
Everything we deliver starts here, in our 4,500 m² production facility in Jelgava, 40 km from Riga. This is where timber frame panels are designed, cut and assembled, using Hundegger CNC equipment, SEMA engineering software and the Swiss Isofloc industrial insulation system. Alongside our panel production, we offer CLT structural solutions giving clients access to both building systems under one contract and one point of accountability.
CNC Precision Manufacturing
Hundegger CNC machines cut every timber element to exact specification - automatically, consistently, and with minimal manual error.
±1mm tolerance
Industrial Insulation System
Swiss Isofloc system pressure-fills panels with cellulose or wood fibre insulation, achieving superior thermal performance, airtightness and a healthier indoor climate.
n50 < 0.6 achieved
Two Technologies, One Contract
We produce timber frame panels in our own factory and offer CLT structural solutions alongside, giving clients access to both building systems under one contract and one point of accountability.
4,500 m² facility
SEMA Engineering Software
Every project is engineered in SEMA - providing precise 3D modelling, production drawings and CNC cutting files directly from the engineering model based on your architect's design.
Full 3D project modelling
Delivery to UK & Ireland
Panels are loaded in assembly sequence and dispatched on schedule. Our central location in Latvia enables efficient delivery to all major European markets.
3–5 days to UK sites
Factory at a Glance
Location
Vītoliņi, Jelgavas novads, Latvia
Facility size
4,500 m²
Production capacity
30,000+ m² panels per year
Contract to site
Typically 6 months
Delivery to UK & Ireland
3–5 days to UK sites
Assembly speed
3–5 days per floor
How We Work
Personal Approach. Industrial Precision.
At ZTC we believe in a personal approach. Every building we produce is unique and designed to meet the specific needs and preferences of our clients. We work closely with architects and developers to create individual solutions - clients provide their own architect's design, and we develop the structural and production engineering.
Our own assembly crews travel to project sites across Europe. We do not subcontract installation - which means full quality control from the first CNC cut to the final weather-tight closure. The result is a predictable process, a fixed contract price, and a structural shell delivered on schedule, unless you change the agreed scope or design after the technical design freeze.
Fixed Price, No Surprises
The contract price is the final price for the complete ZTC scope and specification agreed in your contract. We deliver all of that agreed work for that price, with no material surcharges or escalation clauses, unless you change the agreed scope or design after the technical design freeze. Any requested changes and their price are agreed in writing before the additional work begins.
Own Assembly Crews
Our experienced teams handle on-site installation across Europe. No subcontractors - full quality control from factory to weather-tight shell.
Individual Engineering
We work from your architect's drawings. Every project is individually engineered and produced to specification - not from a standard catalogue.
Full Documentation
CE marking documentation, as-built drawings and manufacturer's warranty certificate. Blower door testing is arranged by the client - delivered as a complete package at handover.
Certifications
Certifications & Standards
CE Marking - ETA-21/0014
European Technical Assessment valid since 2019. All ZTC building kits carry CE marking and are designed to Eurocodes. CE marking is recognised for construction products placed on the market in Great Britain.
Structural Warranty – Build-Zone Vetted Supplier
Build-Zone is willing in principle to consider UK projects using the ZTC closed-panel timber-frame system for Build-Zone or Self-Build Zone structural warranty cover, subject to satisfactory underwriting and technical audit of each individual project. Its Letter of Intent dated 8 October 2026 confirms that ZTC is on its list of timber-frame suppliers considered suitable for structural warranty purposes. Build-Zone does not provide a formal type or system approval. Warranty terms and costs are assessed for each project; the letter does not guarantee a warranty or mortgage approval.
FSC / PEFC Certified Timber
FSC or PEFC certified timber available on request.
Industry Memberships
Member of the Latvian Chamber of Commerce and Industry, the Latvian Wood Construction Cluster, and a LIAA Export Partner - active participant in Latvia's leading timber construction professional network.
Recognition
Award-Winning Timber Buildings
2025
3rd Place — Latvian Construction Annual Award 2025, Timber Building — Office Building, Latvia
2025
1st Place — Sustainability in Architecture, Construction & Design Baltics, Timber Building — Office Building, Latvia
2024
3rd Place — Best Building of the Year in Latvia 2024, Timber Building — Panorama Private Housing Estate, Norway
2024
3rd Place — Latvian Construction Annual Award 2024, Timber Building — Panorama Private House Village, Norway
2023
Commendation — Best Building of the Year in Latvia 2023, Timber Building — Private House, Norway
Our projects have been recognized at the Latvian Construction Annual Awards multiple times - the country's most prestigious construction industry recognition.
Location
Visit Our Factory
We welcome factory visits from clients, architects and partners. Seeing our production process firsthand is the best way to understand ZTC's capabilities and quality standards.
Address
Meža iela 22, Vītoliņi, Jelgavas novads, LV-3017, Latvia
How to Reach Us
- By air - Riga International Airport (RIX), approximately 50 minutes by car, with direct flights from London.
UK & Ireland – Andy James
Website
Ready to Work Together?
Let's discuss how ZTC can help with your next timber construction project.
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