This a small hill great for a short walk and with some interesting views of coast and upland Wicklow.
One good starting point is O 2600 1058 A where a small path leaves the public road at a bend and heads into the woods. There is limited car parking here for 1 or at most 2 cars. Better parking can be found near the Grove Pub at around O2655 0959 B which is also a great place for food and drink, though this does entail a walk of around 2k on the "Old Downs Road" to the previously mentioned forest access.
A south start is at O24147 08288 C where there is very limited parking for at most 2 or 3 cars. It is not recommended to attempt to walk along the public road from the south start downhill to the east because it is a narrow dangerous public road. A west start is from O23425 09913 D along a road past some houses and eventually into the forest. This route can be extremely muddy.
The land to the SW of the summit has been used for military purposes including a disused firing range.
The summit of Downs Hill can be reached from the forest tracks over rough grounds There are occasional good views including of the Great Sugar Loaf. Linkback: https://mountainviews.ie/summit/1513/comment/20667/

Good Friday, showery weather, "Let's do one of the remaining easy ones in Local 100 " we thought. Didn't quite work out like that!
We would suggest that the start at O 2600 1058 A is no longer an option due to (understandable) parking signs / restrictions all along the lane. We started from the Grove Pub at O2655 0959 B and strolled up the lane enjoying a sunny morning. Lovely views on the ascent forest track. As we reached the highest ground our thoughts turned to the summit. Initially we rounded the hill and descended slightly before trying to reach the summit from the south side. Problem! AVOID. We made 2 initial attempts to summit on "tracks" through gorse and failed. Our third was successful - luckily we were wearing our heaviest clothing and could push through bits of gorse. When we reached the summit we had a "so what" moment" with no views. Luckily we found a better descent track to the nearest forest track - and this is the section we have uploaded. We would advise using this section to ascend and descend the summit starting from O 25453 10188 E. We have uploaded this section only as .gpx. We haven't uploaded the whole track since is is confusing due to our initial attempts and also because many of the tracks shown on EastWest have been disturbed by current harvesting of trees. Get out and do it before the gorse advances further. Linkback: https://mountainviews.ie/summit/1513/comment/24161/

There are plenty of bike trails on Downs Hill now, which makes it possible to leave good forestry paths and head straight up, more or less, following ascending bike trails - keep an eye out for mountain bikes obviously. I only encountered two of them on this visit, from Point A upwards. On my way to A I asked a friendly local man for directions. He advised me to park at the Grove pub and walk up. "You'll be lucky to find a place to park up there," he said, "there are no parking signs, cones and lengths of red and white tape everywhere to prevent people parking on verges."
He was right, there was so much red and white I thought Cork had won yet another All-Ireland. I did manage to find a spot adjacent to (but not blocking!) a commercial premises. This was my fourth local 100 top of the day and in the knackered state I was in no way was this pair of legs willing to walk up and down from the Grove (which would add approx 3 kilometres to the walk). Parking seems to be a big issue hereabouts, so if you have the time (and not involved in a top-bagging odyssey), then making a good roadwalk out of it, before you tackle the trails, might be in order. Linkback: https://mountainviews.ie/summit/1513/comment/23154/