Advice on garden electricity provision, please

[JasonByrne]

We don't currently have any power into the garden. It stops at the back door. Mrs P-T, who recently retired, is going to treat herself to a bigger, posher greenhouse from her lump sum, as a retirement present to herself. It occurs to me that something of this standard will probably benefit from an electricity supply. It'll also be an opportunity to install a weatherproof socket outdoors for lawnmowers, power tools and stuff. Greenhouse is down at the bottom of the garden, so will require (suitably armoured) cable to be laid. The fence on one side is new and has those concrete base panels so would presumably make a good protected location for any such cable, albeit it's on the 'wrong' boundary; the fence on the other, more adjacent boundary is old and doesn't have the concrete base panels. One question in my mind is whether you can run lighting and power (electric heating, probably) off the same circuit (I know you wouldn't in a house).

I'll pay a contractor, so am just trying to get straight in my mind what I should be asking for. We might, at some future time, want to install garden lighting (there's a very attractive. mature Acer which would look fantastic with suitable uplighting), and possibly subtle downlighting on the path. I presume this is low voltage, but can somehow be supplied from the mains supply I'm considering (don't want battery or solar, we have that already). Can this be retrofitted, ie the armoured cable broken into and suitable junction boxes/transformers installed later, or would we need to think about locations and spec for the lighting here and now, so the cable could be configured appropriately?

What I'm trying to avoid is paying for outdoor mains power, only to find later that I can't do what I subsequently choose, without paying again for something similar but different.

[OliverShultz]

Running a spur out to a garden setup is doable, but I found it way less hassle to get someone who knows the regs to check load limits and sort proper armoured cable. I once had licensed electrician services by Mr Electrician in Singapore handle a similar run, and it saved me a ton of head‑scratching. A small outdoor consumer unit and a clear idea of what heaters or lights might be used makes planning much smoother.