17 Trade and other payables
| | 2015 | 2014 |
Trade payables | 1,909 | 1,346 |
Rent invoiced in advance | 7,834 | 5,721 |
Tenant deposits | 847 | 182 |
Bouwinvest Development B.V. | - | 3,545 |
Other payables | 1,730 | 4,075 |
Balance as at 31 December | 12,320 | 14,869 |
The other payables relate to invoices yet to be received for maintenance of and investments in the portfolio.