Entire 3,105m2 Building: Fully-fitted with workstations, 88 secure under croft car parks. NABERS Rating: 4.0 Stars. Elevate your business in the Tuggeranong area with 1 Holwell Street, a benchmark-setting commercial building. Featuring expansive and efficient floor plates (approx. 1400m2), top-tier A Grade services, and finishes, this property offers unparalleled quality.