A nice easy solution presents itself to me, and seeing as you have tools and appear to be young and fit...
I would keep your hedge... it's already the height you need, anything else would take years to develop to that height.. the brown can be camouflaged from the front... also I would expect some of that to regrow here and there, potentially over time, with some training of the shoots, you could recover some of that green..
You seem to have a makeshift path of sorts in front of the hedge at the bottom, I would improve that for ease of access to cut the hedge in future.. in front of the path, about 6 foot in from the hedge, I would erect a post and trellis framework, similar to your gazebo on the right, with 4 x 4'' pressure treated posts cemented in, and square trellis panels like in that structure, going across from left to right... you probably wouldn't need that many posts and panels.... even without plants it would already give you some relief from the browning conifers, but a few evergreen climbers along the panels and next to no time you wouldn't notice the conifers, only when you walked around behind the trellis... I hope you see what I mean... might have to reshape part of that lawn and leave a gap on the right to walk through...
Easy peasy… although I would have to get help to do it, … you may not... and I don't think terribly expensive... best of luck...
be aware that some councils have regulations around hedge height (to stop the monstrous leylandii hedges we all remember from the newspapers) so it might be best to check, where i live its usually 10 foot maximum for hedges
You could cut all the dead out and have it like a pleached hedge. I have done this with mine add lost of compost and planted underneath it 5 years ago and every thing I planted is doing well. I did water everything the first year but never have again.
Pleaching is best done with trees that branch - linden, catalpa, beech, hornbeam. It can look stunning but requires patience and investment in good plants and soil preparation. This example using copper beech appeared at Chelsea in 2012.
As you can see, it allows space and light below for more interesting planting thru the seasons rather than just a boring, monoculture hedge.
Vendée - 20kms from Atlantic coast.
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I would keep your hedge... it's already the height you need, anything else would take years to develop to that height.. the brown can be camouflaged from the front... also I would expect some of that to regrow here and there, potentially over time, with some training of the shoots, you could recover some of that green..
You seem to have a makeshift path of sorts in front of the hedge at the bottom, I would improve that for ease of access to cut the hedge in future.. in front of the path, about 6 foot in from the hedge, I would erect a post and trellis framework, similar to your gazebo on the right, with 4 x 4'' pressure treated posts cemented in, and square trellis panels like in that structure, going across from left to right... you probably wouldn't need that many posts and panels.... even without plants it would already give you some relief from the browning conifers, but a few evergreen climbers along the panels and next to no time you wouldn't notice the conifers, only when you walked around behind the trellis... I hope you see what I mean... might have to reshape part of that lawn and leave a gap on the right to walk through...
Easy peasy… although I would have to get help to do it, … you may not... and I don't think terribly expensive... best of luck...
As you can see, it allows space and light below for more interesting planting thru the seasons rather than just a boring, monoculture hedge.
I've even made a rockery out of the old border on the right hand side (not in the picture)
Thanks for the suggestions 😁
The turf will get its first mow also and put in the stepping stones then I can upload a final picture 😁
I think it's rude not to show the outcome when people ask for advice.