So not knowing your style, budget, climate etc (!!), this is what I would do! ; D I'd stay true to the original character, although it could certainly do with some prettying up! Make it fresh, a bit tropical and a bit retro, there's no need to spend a lot to make it look great! Keeping it classic will mean it won't date, instead of following a current trend too tightly. Often helps to think inside out first too... I LOVE the Atlantic at Byron Bay as a reference, both inside & outside. It's got a nice beach relaxed feel but still honouring a bit of retro but still feeling fresh. There's loads of images on the web, but here's a start: https://www.habitusliving.com/architecture/kick-back-in-one-of-byrons-luxury-beach-shacks http://www.distinctive.net.au/blog/n/out-about-the-atlantic-byron-bay-160111 - Interior walls & floors: Keep the base fresh & pared back: Dulux Natural White on walls, satin polished timber floorboards (natural with clear satin varnish, no stain). If you need rugs, again Ikea sisal or a natural coloured textured one. - Window coverings: white venetians (often cheap from Spotlight etc), natural coloured roman blinds, linen full length curtains (in natural or even light grey - again Ikea if you don't want to DIY), even bamboo matchstick blinds. - Then layer texture: natural coloured cottons (e.g. sofa: Ikea sofa Ektorp or Freedom Hampton), linen. Then add feature pieces e.g. a few rattan / cane feature pieces (easy to find on gumtree), interesting pendant lights - Ikea have some great ones - rattan pendant, Ranarp metal, vintage (ebay) enamel industrial pendant lightshades. Then some pattern/colour: black & white stripe (again Ikea have great fabric and even $5 Vargyllen cushions!), maybe a retro style palm print https://www.templeandwebster.com.au/Palm-Tree-Cushion-Cover-VINA1177.html Black & white family photo wall... And indoor plants!! EXTERIOR - Obviously remove all the clutter first so you can better see what you're working with. (I'm guessing this is from previous owner photos) - Uncover the exterior! If practical, remove the blinds, the security screens, lattice and trim the bushes right back. - Paint colours- so many options on these old fibros. You could paint fresh Natural white, add some smart black & stripe canvas awnings would look cute, fresh and a bit retro (actually similar to The Atlantic above). Alternatively paint neutral white with coloured trims - such as Dulux Deep Ocean. Or if you're really brave, I love the look of a dark Ironstone or Monument colour with fresh white trims! You could even do the main house the safer white then the granny flat in the dark! It would be great to change the emerald roof as this does limit what you can do. Don't go dark, it'll trap too much heat, maybe paint Windspray or Shale Grey colour, depends on your wall colour choices. Actually this is assuming it;s iron, I can't actually tell from the photos. - If you really want to trick it up you could even do a weatherboard style cladding, even Scyon, it would look amazing but I thin there's something lovely about the original fibro too if that's a better option budget-wise. - Would love to see photos when you've done that and then you could get suggestions for the next stage. Options could be replacing granny flat sliding doors with French doors (Bunnings have some great super cheap ones, which I saw a reno show got a handyman to connect 3 as trip-folds?!), if you have to keep the large cover for shade into the house, paint fresh white and tidy it up, otherwise make smaller. - It's hard to see the shrubs but they do look a bit nannyish (!), but it could be good to retain them as they're established and give good filler for the short term. Alternatively if you're keen to re-do, I love lush Sweet Viburnum (check out Dense Fence, it's super quick, hardy), then add in groupings more contemporary plants - I love clusters of Mexican Lily (Beshoneria, the spiky one in the pic below), Westringia is a good filler, succulents like silver spoons, chalksticks and even a feature frangipani at the front of the house underplanted with chalksticks. If you want a nice small tree, Tuckeroo is great (see 2nd photo), other planted individually or in a line as below. A bit hard to find, but a great native option, I really love it.

I just googled & found this site, which quotes cost of R2.5 75mm. there are other suppliers as well. What was quoted to you for cost of roof installation, and was it itemised so you can see exactly what thickness the foil-backed insulation builder will use? I'm guessing the thinner (lower R factor). So, the new quote should reflect a credit for the cost of previous insulation, since it won't be used, then cost of thicker insulation added. Does that make sense? If you are unsure, best to speak with the builder. https://www.pricewiseinsulation.com.au/product/heavy-duty-fletcher-permastop/

Thanks for your comments. @Ruth BT do you have a picture to share? We have sampled Hog Bristle half, however my partner prefers the darker grey look very similar to current render.

The house looks dated in those colours , but I love that you have a lighter buttery yellow on the wall to the right , and the pump or whatever that square cover is . What I would do to modernise then , is do all the trim in a crisp white ( it looks like the guttering already is ) BUT with maybe a fake vent added to that triangular , and do the triangle in a crisp yellow ( maybe the vent in crisp white ) .