| Property, Plant and Equipment |
7. Property, Plant and Equipment | | | | | | | | | | | Buildings and | | | | | | | | | leasehold | | Laboratory | | | | | | | improvements | | equipment | | Other | | Total | | | (€ in thousands) | | (€ in thousands) | | (€ in thousands) | | (€ in thousands) | Balance at January 1, 2024 | | | | | | | | | Cost | | 24,775 | | 5,908 | | 1,409 | | 32,092 | Accumulated depreciation | | (10,020) | | (3,827) | | (1,348) | | (15,195) | Carrying amount | | 14,755 | | 2,081 | | 61 | | 16,897 | | | | | | | | | | Additions | | 244 | | 916 | | 43 | | 1,203 | Depreciation | | (2,027) | | (710) | | (24) | | (2,761) | Effect of lease modification (Note 24) | | (1,226) | | — | | — | | (1,226) | Transfer | | — | | — | | — | | — | Disposals - cost | | — | | — | | — | | — | Accumulated depreciation on disposals | | — | | — | | — | | — | Movement for the period | | (3,009) | | 206 | | 19 | | (2,784) | | | | | | | | | | Balance at December 31, 2024 | | | | | | | | | Cost | | 23,793 | | 6,824 | | 1,452 | | 32,069 | Accumulated depreciation | | (12,047) | | (4,537) | | (1,372) | | (17,956) | Carrying amount | | 11,746 | | 2,287 | | 80 | | 14,113 | | | | | | | | | | Additions | | 35 | | 709 | | 113 | | 857 | Depreciation | | (1,925) | | (746) | | (32) | | (2,703) | Effect of lease modification (Note 24) | | 363 | | — | | — | | 363 | Transfer | | — | | — | | — | | — | Disposals - cost | | — | | — | | — | | — | Accumulated depreciation on disposals | | — | | — | | — | | — | Movement for the period | | (1,527) | | (37) | | 81 | | (1,483) | | | | | | | | | | Balance at December 31, 2025 | | | | | | | | | Cost | | 24,191 | | 7,533 | | 1,565 | | 33,289 | Accumulated depreciation | | (13,972) | | (5,283) | | (1,404) | | (20,659) | Carrying amount | | 10,219 | | 2,250 | | 161 | | 12,630 |
The depreciation charge for 2025 is included in research and development costs for an amount of € 2,342,000 (2024: € 2,331,000) and in general and administrative costs for an amount of € 361,000 (2024: € 430,000). Buildings and leasehold improvements include a right-of-use asset relating to the lease of the Company’s Leiden office and laboratory space, with a carrying amount of € 9,994,000 at December 31, 2025 (2024: € 11,433,000).
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