To Modernise this without rendering or retiling the roof I would probably recommend to go darker with the trims. My top pick as a colour consultant would be Dulux's Domino for the trim. It will be a little bolder and create a more modern contemporary feel. You can see it pictured below as the trim. Obviously this house has painted their bricks in the shade "teahouse" however it will still look much better on your 1980s "peru" colour bricks! Don't hesitate to contact me if you need any more help colour wise!

Hi Russ, what a great house. I’d leave the windows white as was typical of the era. It gives these triple fronted houses a lightness that would be lost if you painted them in something dark like monument. It would also look like you are trying to turn the house into something that it’s not. Far better to embrace and honour the original design intent than trying to make it look contemporary as it will end up looking confusing. I’d paint the eaves and the garage door though. The cream colour is jarring. Then concentrate on landscaping. That will make a huge difference and make this house really shine.

my suggestions keeps a small separate laundry with stacked washer dryer plus a bigger storage space for vacuum, ironing board etc adds a handbasin to the toilet and, using a round shower and curved back to wall bath allows space for a generous vanity ... the new kitchen has a pantry, stacked wall oven and microwave, double sink, dw and space for a 600 - 750 cooktop with floor space for a free standing central chopping block island ... the new location for the dining room allows for a window to the garden and sliding glass doors opening to a deck facing north to warm up the new dining room and kitchen ... there's a new window in the living room and the old back door is replaced with a window and i've added doors across the hallways to zone heating ...with careful choice of standard sized fixtures and fittings your budget should be ok but removing walls will be a big cost but well worth while for such great improvements to your home

are the windows double glazed? white windows with white bricks could look great with black gutters and a light coloured (pale grey?) roof but also paint the window sill tiles black but i wonder if this is an opportunity to consider installing new double glazed windows in at least the major living areas and also review roof insulation to improve thermal comfort