You would need planning permission to render part of your house assuming none of it is currently rendered and you're in England. I would replace the inappropriate mock-period front door, but consider your house in the context of adjacent ones before altering your windows.

The least expensive and most significant visual (and ecological) improvement would come from appropriate planting rather than just a few dotted dwarf conifers. Lush planting is so often the saviour of otherwise uninspiring suburban streets. It looks as if you already have two trellises for a start. Take care not to go overboard with plants that will soon grow far too big for the space.

You don't have to clad or render, you could dye the brickwork, a lot cheaper! Also, instead of replacing windows and doors, you could have the UPVC colour bonded.

Replace the concrete path with a good quality stone or block paviour. Add in different height plants and good contrasts in colour. Pink, white and purple look great against grey.

Just a quick play with MS Paint,,,,,,,,,,,,but you get the idea.

How far you want to go with improving? Do you want to add some portico/porch in front of? Or just cosmetic work? Are you going to replace front door or windows?

I am not construction person, but may be something like this idea , more or less complicated. Some extended porch with glass?

I think the world is your Oyster as with everything else...........Anything is possible ( planning department permitting )................However, let's start with Budget?

Some ideas

Brownlow Lane, Lancashire - Full House Refurbishment · More Info

The things that I don't like are the UPVC windows and doors and the landscaping. I know this is an American example, but I think it demonstrates you can just add a small amount of render/cladding/a porch around the front door area and it would really break it up. A modern front door would help massively. Ged rid of the wall and tarmac path, and add some plants with year round interest. I'd be tempted to go for block paving!