A very old thoroughfare, 'le Banstreet' is mentioned as early as 1384 but today Barn Street is a principal route for traffic through Haverfordwest and so people rarely linger here.

Looking north from from the junction with Portfield, upper Barn Street is bounded on the west by Perrot's Terrace - a row of 12 Grade II listed properties originally built in the mid-nineteenth century as the Perrot Trust Almshouses. 

If you could remove the cars from the streetscape it would seem, superficially at least, that Barn Street has changed little over time.

In the nineteenth and early twentieth centuries Barn Street was a lively place with a number of public houses including the Four-in-Hand, the New Put Up, the Crown and the Cromwell Arms - the latter had a scandalous reputation and is associated with a vile murder the occured in 1850.