My rabbit lives in the kitchen currently, but next weekend I am picking up a lovely 2 storey hutch and run for her so she can live outside. In the kitchen she is used to OH and I coming and going and Bramble playing with her through out the day.

Outside she's not going to get as much interaction as now, will it be beneficial to get a friend from her? She's not the friendliest creature in the world and although used to dogs isn't used to being around other rabbits.

Will she need company or shall I let her enjoy the peace and quiet?

Just a heads up (sorry if I have got this wrong) but you won't be able to start moving her outside until around april time as she won't have built up a winter coat

As for a friend my answer is yes, yes, yes.
Rabbits are very social animals so do much better with company of their own species, there is nothing better than seeing a bunny bundle
So long as the bonding process is done properly I believe it is very rare that a rabbit chooses to be alone, some you just have to look harder for the right companion.
Is she spayed?

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I wasn't planning on putting her outside till the weather had improved - although, i think she may have her winter coat as there is not central heating in my kitchen!!

She's not spayed, I was thinking of getting a rescue rabbit, similar in age, as I won't be getting anymore after she and her possible friend are gone.

That's ok, was just checking because it is something that gets overlooked sometimes

She will need spaying before she can be bonded, otherwise her hormones will get in the way.
Many rescues offer a bonding service for a small donation so that can save you the stress of bonding yourself

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Echoing what Bernie said really, a friend for her would be ideal.

I know you say shes not the friendliest rabbit, but you probably will find that changes somewhat when she has been spayed and is happy with a companion (i recommend a neutered male).

When my two curl up together they look like a big fluffy pillow! it really is the cutest thing ever and they both still love to play with me as well so i doubt you will be left out

haha she doesn't like to play with me, so no fear of being left out!! How much is it to spay her? and will her age matter? I took her on from a member (who has a history of getting rid of their pets) on here as a favour and my knowledge of rabbits is not as up to par as it should be. She's happy and healthy and well cared for, but i feel i could do better in terms of knowledge.

It varies from vet to vet tbh, sp it is best that you phone about your area Just make sure you find a rabbit savvy vet because unfortunately not every vet is up to speed on rabbit care
Age doesn't matter if she is healthy, I've known 8 year old does to be spayed without any issues
Is she vaccinated?

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She's not vaccinated to my knowledge, which i know needs to be done, I think an MOT is in order for her really. Will get her down the vets and then discuss spaying too,

Definitely get her vaccinated, she will need VHD (ask for Lapinject or Anivac as Cylap has been known to cause severe reactions) once a year and myxi every 6 months.
Sorry if you already know that

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so, Is a nutured male or a female going to be better company for her (she really is a grumpy mare, so as much as they are social i am quite concerned, I don't have the space to keep 2 rabbits separately if it goes to pot, but wouldn't want to return one to a rescue...)

Whats the best way to go about bonding them?