Google review
ZTC built my house in 2012, and they have done some reclamation work in two periods since then. Only positive experiences with ZTC! Good quality of workmanship and customer support.

ZTC manufactures timber frame panels in Latvia and assembles the structures on site. The solution is adapted to the specific project, energy performance target and scope.
35+
years of experience
400+
completed projects
14
European countries
±1 mm
CNC precision
Google reviews highlight ZTC’s quality, organised process and professional communication.
Google review
ZTC built my house in 2012, and they have done some reclamation work in two periods since then. Only positive experiences with ZTC! Good quality of workmanship and customer support.
Review
We are the small clients of ZTC (because of small house for small kids) but that didn't change the amazing attitude to us and our deal from this amazing company! Even with the smallest business deals ZTC works with perfect attitude with all of clients. Professional, fast, with amazing surprises (!!!) which made us and our clients see and welcome the product with sparkling eyes! We just want to say you - THANK YOU! We wish you all the best! And the quality of kids house is really amazing!
A timber frame house suits private home projects where precise production, energy performance and predictable on-site assembly matter. ZTC works from a client or architect project, develops the structural solution, manufactures the panels and assembles the structure. See timber frame house cost, timber house price and timber frame vs masonry for related topics, or browse completed ZTC projects.
ZTC was founded in 1991 and has completed more than 400 projects across 14 European countries.
Panels are produced in a 4,500 m² factory with 30,000 m² annual panel capacity.
Structural elements are prepared with ±1 mm CNC precision.
Timber panel houses carry CE marking and ETA-21/0014 European Technical Assessment.
Depending on the construction, a U-value of approximately 0.12–0.15 W/m²K and n50 < 0.6 are possible.

Private residence
Gelderland, Netherlands
View project
Private residence
, Sweden
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Developer project
, Latvia
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Private residence
Amsterdam, Netherlands
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Private residence
Akershus, Norway
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Private residence
Leinster, Ireland
View projectAnswers about timber frame house price, construction process, warranty, foundations and energy performance.
A closed panel shell starts from €500/m² + VAT at 150 m² or more. For 100 m² to less than 150 m², the base shell rate is €575/m² + VAT. These rates assume Comfort panels and a simple rectangular house.
Rates use the gross external floor area across all storeys. The shell includes insulated external wall and roof panels, internal walls, transport and assembly by our crew. The externally finished package adds facade cladding, windows, external doors and roof covering. Foundations, interior finishes, building services and site costs are excluded. Quotes are in EUR; GBP equivalents are indicative. The final price and scope depend on your drawings, specification and site conditions.
Beyond the house price, you should plan for architectural design, approvals, topography, geology, energy certificate, foundations, external utilities, heating, ventilation, interior works and commissioning.
Beyond the house price, you should plan for architectural design, approvals, topographic survey, geology, energy certificate, foundations, external utilities, heating, ventilation, interior works and commissioning.
After project approval and contract signing, production can usually be scheduled within 1–3 months. Manufacturing starts from around 2 weeks, while an externally finished house is typically completed within 1–2 months depending on scope.
After project approval and contract signing, production can usually be scheduled within 1–3 months. Manufacturing requires at least around 2 weeks. On-site construction depends on the scope of work — an externally finished house is typically completed within 1–2 months. Overall, a house assembled on site is often ready in approximately 4–6 months.
ZTC does not prepare architectural drawings. The company works from a client or architect’s project and provides structural solutions, manufacturing and assembly.
ZTC does not prepare architectural plans. We work from a project prepared by the client or architect and provide engineering/structural design, manufacturing and assembly.
ZTC mainly builds individual projects and respects owners’ privacy. If a project is under construction, a visit may be arranged, and you are always welcome to visit the ZTC factory.
ZTC mainly builds individual projects and respects owners’ privacy. When a project is under construction, a site visit may be arranged. You are always welcome to visit the ZTC factory.
ZTC houses are designed for a service life of at least 50 years. The standard warranty is 3 years, but in some cases it may be possible to agree an extension to 5 years.
Houses are designed for a service life of at least 50 years. The standard structural warranty is 3 years. In some cases an extension to 5 years may be considered where supported by material suppliers.
ZTC does not build foundations. Foundation design and construction are the client’s responsibility and depend on ground conditions, but timber structures are lightweight so strip foundations or piles are often suitable.
ZTC does not build foundations — this remains the client’s responsibility. Strip foundations are commonly used, but piles are also possible. The choice depends on ground conditions. Timber structures are lightweight, so several foundation types may be suitable.
Payments are made in stages: 10% on contract signing, 35% before production, 40% before loading, 10% on completion at site and 5% after the handover certificate.
Payments are made in stages: 10% on contract signing, 35% before production starts (covered by ZTC advance payment guarantee), 40% when production is complete and the loading date is confirmed, 10% on completion at site and 5% after signing the handover certificate (the last two payments are covered by the client’s bank guarantee).
Standard wall U-values are Comfort 0.167, Premium 0.136 and Lux 0.100 W/m²K.
The specified U-value depends on the complete wall build-up agreed for the project, including layers installed on site. Whole-building energy performance also depends on windows, junctions, airtightness and building services. Your design team coordinates these with the project’s energy assessor.
The n50 value describes building airtightness. In quality constructions it is possible to achieve n50 below 0.6, which is important for energy-efficient buildings.
The final EPC rating depends on the complete building specification and is determined by an accredited assessor for the project.
Insulation, windows, airtightness, heating, ventilation and renewables all affect the result. The project’s accredited assessor determines the final EPC rating from the full specification. ZTC panels can support the agreed energy target, but a structural package alone cannot guarantee an EPC rating. Your design team should coordinate the full specification with the assessor.
Energy calculations are prepared during the design stage, before the panel specifications are finalised, and updated for the completed building.
The client or design team appoints a qualified assessor. Agree responsibility early so the calculations can guide the insulation, windows, airtightness, heating, ventilation and any renewables before manufacture.
Yes. ZTC manufactures timber frame panels in Latvia and provides transport and on-site assembly in the UK according to the agreed project scope. Your local architect or project team is responsible for architectural drawings, approvals, foundations and site readiness. The offer sets out the exact division of work.
Send your project information and the ZTC team will review the structure, scope and next steps.
Every panel leaves our factory insulated, with a wind barrier on the outside and a vapour control layer on the inside, so only the top edge needs wrapping for transport. Choose the level that fits your energy target and budget. Roof panels use the same build-up as the corresponding external wall panel, with an additional 50 mm of insulation. The U-values below apply to walls only.
Cost-efficient mineral wool panel for a well-insulated house.
Wall U-value: 0.167 W/m²K
Outside the panel: Timber board cladding (externally finished package).
In the panel, outside to inside
Added on site after services
Wood-fibre or cellulose insulated panel with a timber airtightness layer.
Wall U-value: 0.136 W/m²K
In the panel, outside to inside
Added on site after services
Our most highly insulated standard wall panel for low-energy homes.
Wall U-value: 0.100 W/m²K
In the panel, outside to inside
Added on site after services
Insulated and weatherproof structure
Everything in the shell, plus a completed exterior
Starting price
€500/m² + VAT
≈ £417/m² + VATIndicative GBP · ECB rate 5 Nov 2026 · quoted in EUR
Closed panel shell, measured on the gross external floor area. Achievable with:
For 100 m² to less than 150 m², the base shell rate is €575/m² + VAT.
≈ £480/m² + VAT for 100–<150 m²Indicative GBP · ECB rate 5 Nov 2026 · quoted in EUR
Send drawings for a quoteNot included in either scope
More answers on scope, timing and warranties in the timber frame FAQ.
ZTC coordinates the timber structure, factory production, delivery and assembly with your local design and project team. Your local architect and contractors handle architectural drawings, approvals and foundations; the offer defines the interfaces.