MARK PETER HARKNESS
ABN details
| ABN | 91 951 861 820 |
|---|---|
| ABN status | Active from 8 October 2026 |
| Entity name | MARK PETER HARKNESS |
| Entity type | Individual/Sole Trader |
| GST | Not registered |
| Deductible gift recipient | No |
| Main business location | Victoria 3140 · Other businesses in 3140 |
| Suburbs in postcode | Lilydale |
| Local government area | Yarra Ranges |
Source: ABR ABN Bulk Extract, 4 November 2026. Verify on ABN Lookup.
Registered business names (ASIC)
| Business name | Status · registered · state |
|---|---|
| FLOWSTATE PLUMBING & HVAC | Registered · from 17 October 2026 |
Source: ASIC Business Names Dataset (data.gov.au), CC BY 3.0 AU.
Business & trading names
- FLOWSTATE PLUMBING & HVAC
Names recorded against this ABN in the ABR extract.
Summary
MARK PETER HARKNESS is an Individual/Sole Trader with ABN 91 951 861 820, located in Victoria 3140. The ABN is active since 8 October 2026.
It is not currently registered for GST. It trades under another name: “FLOWSTATE PLUMBING & HVAC”.
It holds one registered business name with ASIC, including “FLOWSTATE PLUMBING & HVAC”.
Postcode 3140 covers Lilydale in the Yarra Ranges local government area.
Frequently asked questions
What is the ABN of MARK PETER HARKNESS?
The ABN of MARK PETER HARKNESS is 91 951 861 820.
Is the ABN of MARK PETER HARKNESS active?
Yes. ABN 91 951 861 820 is active since 8 October 2026.
Is MARK PETER HARKNESS registered for GST?
No, it is not currently registered for GST, so its invoices should not charge GST.
What business names does MARK PETER HARKNESS use?
Registered business names: FLOWSTATE PLUMBING & HVAC.
Where is MARK PETER HARKNESS located?
Its main business location is in Victoria, postcode 3140.