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Regus logo 121 King William Street, Adelaide From $1,400/mo on Sidespace Availability Building
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For Lease Serviced
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For Lease Serviced
121 King William Street · Adelaide

121 King William Street, Adelaide

6 offices listed
People
2-50+
Available
6 suites
From
$1,400/mo

Availability

SS-316

6 offices · 2 to 20 people 6 available now Updated 15 Aug 2026

Office Price /mo Enquire
2-person private office 2 $1,400
4-person private office 4 $2,800
6-person private office 6 $4,200
8-person private office 8 $5,600
10-person private office 10 $7,000
20-person private office 20 $14,000
Prices are per office, per month.

Need space for a larger team?

Availability changes frequently, and Regus often has more offices than are listed here. Suites here are combined for larger teams, up to 50 people and beyond. Pick your team size and we will check what is free right now.

How many people?

Why this building

Premium Serviced Offices
Flexible Terms For Growth
Prime City Locations

The building

Read more

Key facts

ProductServiced offices
OperatorRegus
Address121 King William Street, Adelaide SA 5000
Offices available6
Team sizes2-50+
From$1,400 /mo all-inclusive
Monthly range$1,400-$14,000
TermsFlexible · all-inclusive
ReferenceSS-316 · listed on Sidespace, updated 15 Aug 2026

Location

Connecting streets

Streets intersecting or near King William Street

Grenfell Street Currie Street Rundle Street Pirie Street Flinders Street Waymouth Street Franklin Street Hindley Street North Terrace

Transport & access

Nearest transport options from this property

Pirie Street Tram stop
100m
Adelaide Station Train station
600m

The operator

About Regus

Regus provides premium, fully serviced office solutions tailored for businesses of every size across Australia, from startups and freelancers to established enterprises. With an extensive network of locations in major hubs like Sydney, Melbourne, Brisbane, Perth, Adelaide, and beyond, Regus offers private offices, coworking spaces, dedicated desks, and flexible hot-desking options on terms that fit any schedule-by the hour, day, month, or longer. Enjoy move-in-ready setups complete with high-speed Wi-Fi, ergonomic furniture, professional reception services, fully equipped kitchens, breakout areas, and access to bookable meeting rooms and conference facilities equipped for seamless presentations and hybrid meetings.

Scale effortlessly without the burdens of traditional leasing, as Regus handles utilities, maintenance, cleaning, and admin support so you can focus on growth and productivity. Benefit from prime business addresses in Australia's key commercial districts, vibrant networking opportunities within a global community, and the freedom to expand or relocate as your needs evolve. Regus delivers a professional, hassle-free environment that supports innovation, collaboration, and work-life balance for today's dynamic Australian businesses.

View all Regus locations ›

More offices for lease nearby

100 King William Street, Adelaide, serviced office 5 offices available
Cubes.Co logo
Adelaide SA
From $1,620 /mo 2-15+ people
30 Pirie Street, Adelaide, serviced office 21 offices available
Cubes.Co logo
Adelaide SA
From $850 /mo 1-15+ people

Frequently asked questions

How much is office space at 121 King William Street, Adelaide?
$1,400 to $14,000 a month covers a private office at 121 King William Street, all-inclusive, across 6 available suites. Rates at this centre are indicative, we confirm exact pricing on enquiry.
What does that work out to per desk at 121 King William Street?
$700 per desk per month, based on the 6 priced suites listed at 121 King William Street and the headcount each is sized for. Rates at this centre are indicative, we confirm exact pricing on enquiry.
What size offices are available at 121 King William Street?
6 private offices are listed at 121 King William Street, suiting 2 to 20 people. Larger teams are accommodated by combining suites, up to 50 people and beyond; tell us your headcount.
How do you get to 121 King William Street?
100m from the Pirie Street tram stop, and 600m from Adelaide Station. It sits between Grenfell Street and Currie Street.
Who operates 121 King William Street?
Regus operates the 6 serviced offices listed at 121 King William Street.