The by-laws of the manor were understood by the tenants but not written in the manor court rolls. Below is a list of the customs for Willington, extracted from the manorial records. The customs were adapted over time according to changing circumstances.
Richard II
It is ordered by the steward that no-one shall play Quoits under a penalty of 12d.
Henry IV
It was ordered by all the community that all the community should make up the road called Wadenye which road is exceedingly harmful in its use for all for their passage, and has been viewed by John Gostwyke, William Rydere, John Bande and John Rydere. And the [illegible] of the said community is not necessary for making the said way for the servants and assigns of the aforesaid John Gostwyke and William Rydere and all given the [illegible] 40d to the lady and the church 40d from [illegible] with the agreement of the community.
It was ordered to all the tenants that no tenant [should] at any time [have] hounds within the demesne of the lady under a penalty of half a mark, [6s. 8d.] neither any dogs to go down the lady's Warren under a penalty of half a mark, [6s. 8d.].
It was ordered by all the tenants that no-one is to permit any colts to pass at large, that is to say, that they are to be penned with their mothers. So that [if] they are found to have been delinquent, they will be under a penalty of 6d.
Also it was ordered by the same that no-one is permitted to let their sheep, pigs or calves roam in the fields [torn edge] without custody, allowing them to trespass on to the herbage and corn of the neighbourhood, under penalties, if they should have been found delinquent, of 6d to the lady and 6d to the church.
Henry V
It was ordered by all the lord's tenants that everyone whatsoever who has any land in the common fields [illegible] is to make one drain on their land before the feast of St. Mark [the Evangelist, 25 April] next in the future, so that the waters do not overflow the said fields but have been put in their watercourses outside the said fields, and that the [said] fields are not blackened by the aforesaid defective watercourses, under a penalty of 12d.