On 16/06/2015 21:48, Roger Tonkin wrote:

The front lawn slopes steeply at one end (around 45 degrees) to
a concrete edging strip. Trouble is over the years the lawn has
sunk around 2 inches below the top of the concrete, making it
difficult to cut and a risk to the mower.

Odd. My lawn slowly rises over the years and encroaches on to the paths.

How should I build it up, without making it unsightly?

My initial thought was to use turf, but that would have to be
shaved to a thin strip at he upward end to fit into the rest of
the lawn - not sure how that would work!

Any other ideas?

Lay the turf out and cut into the existing lawn to the depth of the turf
with a spade. Cut into it at the new angle and lay the piece upside down
on the lower part then put the new turf in position.

A thin piece of turf will wither and die. And newly planted turf
requires a lot of tlc and watering to keep it alive in midsummer.
You might be better off waiting until autumn...

I'd be more inclined to add sufficient topsoil and then reseed or peel
the existing turf back and add extra topsoil underneath it.

--
Regards,
Martin Brown