Prefabricated Timber & CLT Solutions for Developers
Multi-unit residential • Commercial buildings • Fast delivery across Europe
400+ projects — 14 european countries
Trusted by developers, architects and contractors across Europe
35+
Years
14
14 European countries
400+
Projects
±1 mm
CNC Precision
Operating in
What We Build
Multi-Unit Residential
Apartment blocks and townhouses 2-5 storeys.
- •Timber frame panel system for 1–5 storey buildings
- •Factory-fitted windows and facade cladding available
- •Airtightness n50 < 0.6, passive house standard achievable
- •U-value from 0.12 W/m²K with cellulose or wood fibre insulation
- •Assembly 3–5 days per floor, earlier interior start
CLT Building Solutions
3-8 storey structures with CLT walls, floors, and cores.
- •Mass timber structures up to 8 storeys
- •3 - 8 layer configurations
- •Max panel size 13,800 × 3,100 × 400mm
- •Fire resistance up to EI 120 - acoustic performance Rw up to 65 dB
- •Visible-grade CLT available for exposed interior finish
Infill Panels & Facade Systems
Timber infill for steel/concrete frames or facade renovation.
- •Lightweight panels - designed to carry only their own weight and facade loads
- •Factory-fitted aluminium or timber windows available
- •Factory-applied plaster or cladding finish available
- •Ideal for urban infill projects and building renovation
- •CNC precision ensures exact fit to existing structural grid
Two Technologies. One Supplier. One Contract.
Most timber construction suppliers offer either panel frame or CLT. Not both. ZTC supplies both systems under one roof and combines them into hybrid structures that deliver the structural performance of CLT with the cost efficiency of timber frame.
For your project, that means one supplier, one timeline, and one point of accountability.
Timber Frame Panels
- ✓Insulated wall, floor and roof panels for 1–5 storey residential buildings
- ✓Hundegger CNC manufacturing with ±1mm tolerance, no on-site adjustments
- ✓U-value from 0.12 W/m²K with cellulose or wood fibre insulation as standard
- ✓Factory-fitted windows available and panels delivered ready to install
- ✓CE marked under ETA-21/0014 - compliant across all EU/EEA markets
CLT Structural Systems
- ✓Mass timber structures up to 8 storeys
- ✓3 - 8 layer configurations - max panel size 13,800 × 3,100 × 400mm
- ✓Fire resistance up to EI 120 - acoustic performance Rw up to 65 dB
- ✓Visible-grade finish available for exposed interior CLT surfaces
- ✓BIM / IFC model files available as optional add-on
Hybrid Capability: CLT structural core + timber frame insulated envelope = 15-20% cost reduction vs. pure CLT, with superior thermal performance.
Projects Across Europe
Active Markets
Why Choose ZTC
Fixed Price Guarantee
The contract price is the final price - no material surcharges, no escalation clauses. Your financial model stays intact from signing to handover.
Speed to Weather-Tight
Structural on-site assembly in 3–5 days per floor. Your project reaches weather-tight in weeks, not months and interior works starts earlier, saving time and cost.
CE Marked Building Kits
All kits carry CE marking under ETA-21/0014 and comply with Eurocodes. Ready for building inspection in any EU/EEA country - no regulatory surprises.
One Supplier, Two Technologies
CLT and timber frame from one factory. One contract, one timeline, one point of accountability - no subcontractor chain risk.
Selected Projects
Latvija — Developer project
Trešā stāva izbūve esošas ēkas renovācijā
Esošas ēkas renovācijas ietvaros ZTC veic trešā stāva konstrukciju montāžu, paplašinot ēkas izmantojamo platību. Jaunais stāvs tiek izbūvēts uz esošās ēkas, pielāgojot konstrukcijas projekta plānojumam.
Latvija — Developer project
Biroja un darbinieku atpūtas ēka Drabiņu purvā
Drabiņu purvā ZTC uzbūvēja 300 m² plašu ēku no rūpnieciski ražotiem koka karkasa paneļiem. Tajā apvienotas biroja telpas, darbinieku ģērbtuves, dušas un labierīcības, kā arī ēdināšanas un atpūtas zona. Trīs metrus augstie griesti rada plašuma sajūtu, savukārt koka fasādes apdare un ieejas nojume veido ēkas ārējo tēlu.
Latvija — Developer project
ZTC birojs, kas parāda arī koka būvniecības plašās iespējas.
Līdzās ZTC ražotnei esošais birojs ļauj klientiem un sadarbības partneriem klātienē iepazīt rūpnieciski izgatavotu koka konstrukciju iespējas. Ēkas konstrukcijās izmantoti ZTC projektēti un rūpnīcā ražoti koka karkasa paneļi, kas pielāgoti individuālam arhitektūras risinājumam. Biroja vizuālo tēlu veido liektas līnijas, plašs stiklojums un izteiksmīga jumta pārkare. Paneļu siltinājumam izmantota celuloze un ēkas interjerā redzami CLT elementi. Liektas fasādes līnijas, plašs stiklojums un izteiksmīga jumta pārkare demonstrē koka paneļu pielāgojamību individuālai arhitektūrai.
Latvia — Developer project
Industrial Facility Facade with CLT and Infill Panels
Fast and sustainable construction is achievable with infill panel technology. For this project, we manufactured and installed the industrial facility’s front facade using insulated facade panels featuring a 60 mm CLT interior finish. The panels arrived on-site as ready-to-install elements and were mounted onto the steel framework. Parallel processes - manufacturing panels while the steel frame was being erected on-site, it significantly reduced the total construction time. The panels were installed without the need for scaffolding, saving both time and resources. Timber is a natural, renewable material with excellent thermal insulation properties, reducing energy consumption and sequestering CO2. The CLT panels used are durable and feature an easily renewable surface, which is essential for industrial environments. This project serves as proof that timber is an excellent material not only for small-scale buildings but also for large-scale industrial facilities.
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Norway — Developer project
Modern Prefab Timber Housing Village with Fjord Views
This modern residential village consists of 8 two-story prefabricated timber frame houses, beautifully integrated into the surrounding nature and tailored to maximize the stunning nearby fjord views.
Norvēģija — Developer project
Divas privātmājas ar skatu uz fjordu Norvēģijā
Divas individuāli projektētas, 300 m² plašas privātmājas Norvēģijā ar skatu uz fjordu. Melna koka un dzelzs vitriola apstrādāta lapegles fasāde piešķir katrai ēkai savu raksturu, savukārt pilnstikla balkonu margas saglabā atvērtu skatu uz ainavu. ZTC nodrošināja koka konstrukciju projektēšanu, ražošanu, piegādi un montāžu, kā arī fasādes un jumta darbus.
Project References
See our timber and CLT construction projects - from factory production to completed buildings.
Timber Frame Production
Factory manufacturing process
CLT Building Assembly
On-site installation
Completed Project Tour
Finished timber building
Awards & Recognition
Awards & Recognition
- 2025
3rd Place - Latvian Construction Annual Award 2025, Timber Building (Office Building, Jelgava)
- 2025
1st Place - Sustainability in Architecture, Construction and Design in the Baltics, Timber Building (ZTC Office Building, Jelgava)
- 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)
- 2021
Jelgava City Highest Honour - Director Māris Avotiņš, Latvia Independence Day
- 2020
Socially Responsible Company Award - Jelgava Region
- 2020
Most Employee-Friendly Company - Jelgava District
- 2019
LBS Diamond Award — Best Building Abroad (Multi-functional building, Nacka, Sweden)
Let's Discuss Your Project
Send us your project drawings or concept description. Our engineering team will review feasibility and provide a preliminary assessment within 3 business days.
What Happens Next
- ✓We review your drawings or project description and assess structural feasibility.
- ✓Within 10 business days you receive a preliminary budget range, no cost, no obligation.
- ✓ If you proceed, we prepare a fixed-price proposal covering the full scope from production to assembly.
- ✓Production begins after contract signing with regular progress updates throughout the manufacturing run.