New 2/2.5 house downtown...what would U do to add property value?

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Here are the specs of the new built house my wife and I purchased near downtown ☀️ Austin, TX :

Builder split lot into two sub units:

Unit A:

Price: $650,000

Size: 1,800 sq. ft.

Bedroom: 3

Bathroom: 2.5

Has garage

Unit B (we bought this one):

Price: $479,000

Size: 1,100 sq. ft.

Bedroom: 2

Bathroom: 2.5

Has garage

My wife and I would love to add the maximum amount of value with $15-30k as we are already putting down 20% to get rid of that nasty PMI. We would love a 🏊🏼 but not sure, maybe add a 3rd bedroom but not sure, maybe convert the garage, again no idea. Since it's a new build and doesn't need any "rehab" how would you add value in this case?