A Precinct Built for Excellence
The Mill Green Complex comprises approximately 40,445 sqm of net lettable area (NLA) and 281 car bays. The precinct aims to revitalise its corner address at St Georges Terrace by restoring and regenerating green connections, recasting its buildings as structures emerging from a green oasis, and delivering green serenity to Perth’s west end.
5★
NABERS RATING
40,445
SQM NLA
281
CAR BAYS
3
A-GRADE BUILDINGS
Perth's west end campus
Mill Green occupies a landmark corner at the junction of St Georges Terrace and Mill Street, in the heart of Perth’s premium commerce district. Three interconnected buildings surround Mill Street Plaza — a generous public forecourt uniting the precinct into a cohesive workplace campus.
Owned and managed by GDI Property Group, the precinct has undergone comprehensive refurbishment, delivering modern end-of-trip facilities, upgraded lifts and services, and extensive facade works across all buildings.
Main Tower
197 St Georges Terrace
28 levels · 26,127 sqm
East Building
5 Mill Street
12 levels · 7,148 sqm
South Building
1 Mill Street
4 levels · 6,648 sqm · Four-level atrium
A campus built for modern work
◈
Connected plaza
Mill Street Plaza links all three buildings via a generous landscaped forecourt, creating a true campus environment in the CBD.
◉
Exceptional Transport
Steps from Elizabeth Quay Bus Station and within walking distance of Perth Station, with direct bus access from Mill Street.
◌
5.0 star NABERS
197 St Georges Terrace and 5 Mill Street hold prestigious 5.0 Star NABERS Energy ratings, reflecting our commitment to sustainability.
◍
Conference facilities
Fully serviced boardrooms, training rooms, and video conference suites available to all precinct tenants.

Perth's Commercial Property Specialist
GDI is an integrated, internally managed commercial property investor with deep capabilities in acquisition, development, and tenancy management across NSW, QLD, and WA.
7 commercial office assets across 4 Perth CBD sites — 108,021 sqm of Premium and A Grade office NLA.
7
PERTH CBD Assets
$1B+
Assets Under Management