I think you have nice idea, just need to play more with colors.

I love asymmetrical roofs (when appropriate to the structure, of course.) Is it in the budget to remove the part over the arch, and slightly lower the angle of the part over the garage so it's not quite as steep, but still jaunty?

I hate to criticize, but I don't care for the idea you posted. While I like the colors and the darker garage door, the extra gable doesn't deal with the dark "mousehole" effect of the arched entry.

Will you be working with an architect?

The best change you could make is to install a much more interesting garage door. Something with some windows, panels, color...

It's by far the predominant "feature" and right now it's not adding anything (to be charitable).

I agree with Beverly
The updated version looks amazing. I’d just do something with the color and textures to make it even nicer.

I’d paint the exterior a creamy white.
Add bronze accents, like outdoor lighting, mailbox, house number.
Maybe also, add some more texture to the arches. Almost like crown molding. (Am I making sense lol!?)

I like the stone arch way but I’d probably go with a smeared stone look.

Large windows and landscaping will add a ton to the space as well.

I’d copy the following as inspiration

Some more

I like your home actually! a dark wood garage door maybe. a color on the wood section of the gable if you are daring. a more visible door if its in the arch. an arched wood door in the arch could be nice

i think your house is unique and appropriate for its era. theres a risk of a ”remuddle”. if you really hate it i might find a pro to help you as i think a mediocre job could be a mess here.

Creamy white paint, darkish brown or cedar garage door, aqua/ teal paint on the iron gate.

Clematis on a trellis to disguise the 'geometric wall' (which is probably helping to support the roof.) (What is going on on the interior side of the gate?) Paint the front door either a lighter or darker shade of the gate paint.

I can't see the detailing on the iron gate. Suspect that replacing it with a slightly bulkier looking gate would be an improvement--if it is spindly looking.

I would hire a designer , preferably with an architect on staff ( or who collaborates with one ) before doing anything. Are you sure your house was built in the 60’s? Looks like many I’ve seen built in the mid/ late 70’s.

I quite like your house-- it is definitely not weird! Of course I understand if you don't personally like it. Landscaping makes or breaks a house, so that would be my focus. It will add the most curb appeal and the best bang for your dollar. Then I would do a few cosmetic tweaks.

If you feel compelled to take a sledgehammer to it agree with others you might want to work with an architect in order to enhance what you have and not "remuddle" it.

I once lived in an area with a wide variety of homes built from early 60's through 70's. They were all different and all delightful. Yours would fit right in if the landscaping is improved.

Good luck and I hope you come to love your home!

The last mockup of Beverly's is the best one. No major roof work.

Some sketches for inspiration.

Like the house. Someone may have been trying for MCM?

If the absence of symmetry bothers you, removing the ?porch? roof right of the garage and then recreating the forward facing gable so the right side of it matches the left side of the roof that is over the garage. Then consider adding a real or faux roofing vent or faux window centered in your new forward facing gable.

Budget permitting, consider a new garage door, preferably with a natural wood finish and a row of windows across the top.

When you work on the landscaping, be sure you do not put dirt against the trunk of the tree but you could certainly level the area around the tree from tree trunk out creating a planting area around the tree.

Is there a roofed courtyard behind the arch, open to the right? And I'm wondering how the main roof meets up with the roof over the courtyard area. Take a picture from the other side of the house, and into the arch, so we can see what is going on there.

Your house is MCM, even the arches. (Lots of MCM 1960's houses have them.) Embrace the retro look or you'll spend a bundle fighting it and end up with a mish-mash.

I'd like to see a wood door on your house. This house's brick is similar to your colour - add some charcoal and warm-toned wood to yours. Maybe a darker gray than I have shown here.

https://www.clopaydoor.com/blog/post/2020/05/04/a-memorable-modern-makeover

The modified pic partim posted removes the contrast by painting the trim around the door and vertically above the garage door on both sides and you should do that even if you cannot add the wood MCM door.