History of Sarn Park services
The old amenity building.
Like many services on the M4, customer levels have increased, but not by as much as at other services. As a result, Sarn Park managed to miss out on funding, with parts of it falling into disuse. Competition from a huge retail development opposite made growth particularly difficult as other services turned to takeaway facilities to balance the books.
As a result, in 2013 plans started for a new, replacement services, which were built during the first half of 2016. This aims to increase custom by being more appealing to visit, and to help with maintenance as the original building had reached the end of its useful life. In truth, the old building wasn't compatible with Welcome Break's new tendency to offer only fast food in a food court which has the same styling at all their sites.
The building design was very unusual, taking advantage of the small footprint and low traffic levels expected here. It consisted of three octagonal buildings; one disused, one offering toilets, and one a restaurant that was actually eight buildings and an extension all stitched together. The roofs on these buildings hung low, creating a design that appeared to surround the visitor.
In addition to the amenity buildings, there was a disused two-storey HGV MOT centre in the HGV parking area. The site was dug lower than the surrounding area to minimise noise disruption. Space was left on the roundabout for the hotel which was later added.
Planning permission for the services was originally granted in 1980, replacing the former East Glamorgan Hotel and isolation hospital. It included the option of extended both parking areas when necessary, but unusually this proved not to be required. Early facilities included The Granary, Little Chef and The Shop, which progressed into Eat In, Starbucks and WHSmith.
Some of the road signs were original to the site, and in 2015 still included directions for "Commercials" - a word for HGVs not used beyond the 1980s.
The Days Inn hotel was built as a Travelodge on a separate site with a driveway connecting it to the services.
Access and Footfall
Until the M4 opened, all motorway services had been planned and supervised by staff in London. With the M4, that task was delegated to the Welsh Office, but to save time with what could have been a very long and complicated process, the Welsh Office merely invited interested companies to plan services wherever they liked.
Sarn Park was the second service area to open. Nervous about low traffic levels, they chose a small site next to a busy junction. Providing eastbound access was easy, but as the junction has become increasingly busy, the journey to and from the M4 westbound has become extremely complicated.
Even travelling east, the road design used to require users to complete a full lap of the services, before they can enter the car park.
Despite the complicated arrangements, the idea of using a small site by a busy junction should have worked. However, the open planning system meant there was nothing to stop rivals opening up nearby, and Cardiff West and Swansea West did exactly that. As a result, Sarn Park never really reached its full potential, which is why the old site became desperate for investment.
With the slip road running horizontally through the middle of the site, the redevelopment saw the amenity building and car park moved from the south side to the north side. This was to allow the old building to remain open while work took place.
The new, square building, has a large zig-zag roof stretching well over the front of the building to create a small terrace. A Starbucks cafe with WHSmith behind it are on the left of the concourse, with Burger King on the right. The public toilets, game arcade and deliveries area is on the back wall.
Space has been left for a concession in the lobby, possibly Top Gift, and another in place of the picnic area if necessary.
As the site is on a down-hill, the front of the building is well above the car park, with steps leading up to it. A Starbucks drive thru is included with a single window at the back.
Although the swapped parking areas both offer more spaces than they used to, much of their alignment remains the same, with kerbstones being recycled.