Only the eastern cross wall still stands. The apse shows where a chapel was intended, but the keep now appears peculiarly squat in relation to its area because only the two lower floors survive. Traces of walled-up battlements reveal that, when only one story high, an embattled parapet capped the keep. This may have been done as an emergency measure in 1083 when a Danish invasion seemed imminent. The next level must have followed soon after.