For a red-brick period home from the early 20th century I would consider James Hardie's Scyon Linea Weatherboard, which looks like the old fashioned timber weatherboards, (but without the maintenance issues and the cost) as the cladding material for an extension. Avoid rendered lightweight construction as it is inappropriate and too contemporary for your home. Look at your existing external trim colours, and the trim colours of other houses of a similar age in your area for colour inspiration. Best of luck, Dr Retro of Dr Retro House Calls

Dont rely on google images, they are heavily edited and inaccurate, definately order swatches for accurate comparison. Below is a photo of Dulux Elements powder coating swatches which I have in my office - in the photo you can see (and from my own perspective of this colour) up close Surfmist is definately not 'white' but search the images on the web and yes it looks white (FYI first colour is 'Basalt', second colour 'Surfmist', third colour 'Black' and fourth colour 'Monument') Below also is one of my company's recent projects, chairs in Surfmist and tables in Monument, but looking at the image you'd swear it was 'white and black'. Before you decide Id suggest getting the actual powder coat swatches from Dulux which you can order via their website and then you can compare them and decide. Note: Colorbond Surfmist / Monument and Dulux are the same tone. Good luck!

I'd offer a variation -- like bigreader , I like the brick/roof/surfmist combo , but my worry is that with the 2 lighter colours ( roof and 2/3rds of the exterior ) , it will look pretty boring , so i'd go Monument windows and a cedar or similar garage door and entrance door -- you get the contrast of the windows , and the warmth of the wood , to add to it . I like colour , so I'd possibly go one step further , and do the gutters and that trim around the gable in a red , similar or slightly brighter than the predominate red in your brick . I'm not a fan of plainish uprights either , but conversely I suspect if you did your brick up to the same height as you have on the walls ( make a brick base for each column ) , then presumably paint in surfmist from there up , it may look more 1920's than 2020's , so maybe do those columns in a full height cedar stain too ( assuming you do the garage door in that ) or if the budget allows , maybe in a flat horizontal stone ( schist or similar ) , either matching the wall height , or full height ?

It looks like you have some nice wooden features ? And is that wall , where it says South Western Elevation , in a red or pink shade ? Like bigreader , I wouldn't go dark over light -- it always reminds me of rugby club and schoolsand squash club buildings -- they often seem to have white basements and then a darker upstairs , with more windows and terraces and the like . In a couple of the pics , the 2 charcoal tones are subtle but works . Having said that , if you do 2 levels like that , it may look too 'tall' if you do 'bands' of the different tones , or else too chequerboard if you do the top and bottom different . Just a thought -- could you do more wooden features ? A panel in stained wood , even if it is almost fake ( erected in front of part of the existing basement ) would break up the look , and I always feel timber adds a warmth , whereas white , dark grey and charcoal don't so much .