Are you able to consider a hot tap instead?

How about a hidden work surface behind one of the cupboard doors? Perhaps something that pops out to the touch then slides sideways then back in place when not in use?

If you
are able, as indigozest has suggested, a hot tap would be the best
solution. They will take up some room in your cupboard but how much
depends on which one you choose, the same applies to the cost. Whilst the
initial cost is a lot higher than a kettle they are cheaper and more
environmentally friendly to run.

You
will find you won't only use your tap for making drinks but for cooking and
cleaning.

Some
options below for you.

May be worth noting that Quooker
and Franke do one tap that does boiling, hot and cold water if you
wanted to streamline further. Always check the temperature that the boiling water comes out the tap at, this does vary between manufacturers. For example Quooker is 100 degrees, insinkerator is 98 degrees.

http://www.quooker.co.uk/enuk

http://www.franke.com/gb/en/ks/products/instant-boiling-water-taps.html

http://insinkerator.co.uk/webapp/wcs/stores/servlet/en/insinkeratoruk/steaming-hot-water-taps