LK‑Fertigbau GmbH, headquartered in Lohmar, develops, manufactures, sells and assembles predominantly single‑ and two‑family houses in massive wooden block construction under the brand “Fullwood Wohnblockhaus.” Production uses massive block beams and the houses are offered in variable completion levels to private end customers primarily in Germany and Switzerland. The company manufactures at three sites in Germany, operates 12 show and reference houses with 33 sales advisors, and employed an average of 54 persons in fiscal year 2023. As a medium‑sized corporation (HRB 520) it holds 100% of Fullbau Suisse AG and reported total assets of EUR 10,173,627.32 and an equity ratio of 31.8% as of 31.12.2023.
Der Holzbau, insbesondere die Herstellung und der Vertrieb von Holzwohnhäusern und von Hallen für Industrie und Landwirtschaft
Converted using the official Destatis and Eurostat correspondence tables; ISIC Rev. 4 is the United Nations' international industry classification.
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Source: German Commercial Register (Handelsregister) Siegburg Local Court, HRB 520 (as of 3 November 2026)
| Name | Type | City |
|---|---|---|
| Frank Jensen | Geschäftsführer(in) | Neunkirchen-Seelscheid |
| Stefan Kessner | Geschäftsführer(in) | Lohmar |
Source: German Commercial Register (Handelsregister) Siegburg Local Court, HRB 520 (as of 3 November 2026)
| Date | Event Type | Event |
|---|---|---|
| 14.07.2022 | Gesellschaftsvertrag amended | Gesellschaftsvertrag |
| 23.02.2012 | Company Name Change | LK-Fertigbau GmbH |
| 23.02.2012 | Business Purpose Update | Der Holzbau, insbesondere die Herstellung und der Vertrieb von Holzwohnhäusern und von Hallen für Industrie und Landwirtschaft |
| Date | Type | Change | Total Capital |
|---|---|---|---|
| 23.02.2012 | Capital Decrease | -291.000 € | 309.000 € |
| 29.07.2002 | Share Capital Set | — | 600.000 DM |
Source: German Commercial Register (Handelsregister) Siegburg Local Court, HRB 520 (as of 3 November 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | €25,880,132 | €7,119,107 | €16,834,477 | — |
| 2023 | €27,102,324 | €2,923,739 | €10,173,627 | — |
| 2022 | Rohergebnis€10.8M2 | €2,385,355 | €9,569,800 | — |
| 2021 | Rohergebnis€8.4M2 | €1,996,255 | €7,821,430 | — |
| 2020 | — | — | €4,903,697 | — |
| 2019 | — | — | €3,926,130 | — |
| 2018 | — | — | €7,522,452 | — |
| 2017 | — | — | €5,790,833 | — |
| 2016 | — | — | €6,225,245 | — |
| 2015 | — | — | €5,334,595 | — |
1 Small companies are not required to publish a profit-and-loss statement (§ 326 (1) HGB). The figure shown is the statutory ceiling under § 267 HGB where the balance-sheet total makes it binding — a company may exceed at most one of the three size criteria.
2 Rohergebnis nach § 276 HGB: Umsatzerlöse abzüglich Materialaufwand bzw. Herstellungskosten. Kleine und mittelgroße Kapitalgesellschaften dürfen diese Posten zusammenfassen; die Umsatzerlöse selbst sind dann nicht veröffentlicht und liegen über dem Rohergebnis.
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Source: German Commercial Register (Handelsregister) Siegburg Local Court, HRB 520 (as of 3 November 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €3,426,213 | 24.9% |
| Material Costs | €10,169,772 | 73.8% |
| Depreciation | €163,130 | 1.2% |
| Interest & Similar | €22,227 | 0.2% |
