Introduction
The Board of Surveying and Spatial Information (BOSSI) is a statutory board constituted under the Surveying and Spatial Information Act 2002. Its principal functions are:
- The registration of surveyors.
- The investigation of complaints against registered surveyors.
- The taking of disciplinary action against registered surveyors.
- The investigation of matters referred to it by the Minister for advice or report in relation to surveying or any other aspect of the spatial information industry.
- The investigation of, and the provision of advice to the Minister with respect to, the practice to be followed in the conduct of surveys or in the collection, collation and dissemination of any other kinds of spatial information.
- The provision of advice to the Minister on the maintenance of the integrity of the State cadastre.
- The provision of advice to the Minister with respect to any other matter in connection with the administration of the Surveying and Spatial Information Act 2002.
BOSSI register
The BOSSI Register of Surveyors contains details for all registered and candidate surveyors since 1929 when the first Surveyors Act was enacted in NSW and the Board of Surveyors (BOS) was formed under that Act. In 2002 the Board of Surveyors was renamed the Board of Surveying and Spatial Information (BOSSI) when the Surveying and Spatial Information Act was enacted.
On 30 June 2025 the Register contained 938 financial registered surveyors and 301 financial candidate surveyors.
Financial registered surveyors
Registered surveyors
BOSSI registers surveyors in two disciplines being land surveying and mining surveying. The current number of financial registered surveyors as of 30 June 2025 is as follows:
| Registered land surveyors | 829 |
|---|---|
| Registered mining surveyors | 94 |
| Registered land and mining surveyors | 15 |
| Total | 938 |
Registered land surveyors
Age profile
The age range of financial registered land surveyors on the Board's register is shown below, from which the following key statistics have been determined:
| Average age | 53 |
|---|---|
| Most common age | 53 |
| Oldest | 94 |
| Youngest | 25 |
Gender diversity
The gender breakdown of financial registered land surveyors is currently 813 males and 31 females.
Registration
The initial registration year of the current financial registered land surveyors' spans from the 1950s to the present date. The below graph shows a breakdown by decade.
The following graph shows the length of time current financial registered land surveyors have been registered. The longest span of registration is 72 years, with the average span of registration being 22 years.
The age of land surveyors when they have gained registration is displayed below, from which the following key statistics have been determined:
| Average age at registration | 31 |
|---|---|
| Most common age at registration | 27 |
| Oldest registration age | 66 |
| Youngest registration age | 21 |
Most surveyors gained their initial registration in their 20s.
Registered mining surveyors
Age profile
The age range of financial registered mining surveyors on the Board's register is shown below, from which the following key statistics have been determined:
| Average age | 49 |
|---|---|
| Most common age | 44 and 45 |
| Oldest | 81 |
| Youngest | 32 |
Gender diversity
The gender diversity of financial registered mining surveyors is currently 107 males and 2 females.
Registration
Currently the Board has three categories of mining surveyor registration, being unrestricted, underground metalliferous mines, and open cut mines.
As mining surveyor registration under the Surveying and Spatial Information Act 2002 was only introduced when the Act commenced, the initial date of registration for current financially registered mining surveyors in the Board's register spans from 2003 to present with the majority of these being in the 2003-2004 financial year. 
Financial candidate surveyors
BOSSI enrols candidate surveyors in two disciplines being land and mining. The current number of financial candidate surveyors as of 30 June 2025 is as follows:
| Candidate land surveyors | 254 |
|---|---|
| Candidate mining surveyors | 43 |
| Candidate land and mining surveyors | 4 |
| Total | 301 |
Candidate land surveyors
Age profile
The age range of financial candidate land surveyors is shown below, from which the following key statistics have been determined:
| Average age | 34 |
|---|---|
| Most common age | 31 |
| Oldest | 73 |
| Youngest | 23 |
Gender diversity
The gender breakdown of financial candidate land surveyors is currently 245 males and 13 females.
Enrolment
Most financial candidate land surveyors enrolled in the last 5 years. There are currently 4 financial candidate land surveyors who enrolled before the 2006-2007 financial year.
Candidate mining surveyors
Age profile
The age range of financial candidate mining surveyors is shown below, from which the following key statistics have been determined:
| Average age | 36 |
|---|---|
| Most common age | 36 |
| Oldest | 56 |
| Youngest | 22 |
Gender diversity
The gender breakdown of financial candidate mining surveyors is currently 46 males and 1 females.
Enrolment
The below graph shows the financial year when current financial candidate mining surveyors initially enrolled with most enrolments occurring within the last 4 years.
Trends
New candidate applications (land and mining)
| 2024-25 | 2023-24 | 2022-23 | 2021-22 | 2020-21 | 2019-20 | 2018-19 | 2017-18 | 2016-17 |
|---|---|---|---|---|---|---|---|---|
| 51 | 42 | 69 | 49 | 59 | 49 | 60 | 72 | 56 |
Total financial candidates (land and mining)
| 2024-25 | 2023-24 | 2022-23 | 2021-22 | 2020-21 | 2019-20 | 2018-19 | 2017-18 | 2016-17 |
|---|---|---|---|---|---|---|---|---|
| 301 | 274 | 288 | 272 | 276 | 256 | 251 | 260 | 228 |
Certificates of competency issued
| 2024-25 | 2023-24 | 2022-23 | 2021-22 | 2020-21 | 2019-20 | 2018-19 | 2017-18 | |
|---|---|---|---|---|---|---|---|---|
| Land | 15 | 26 | 22 | 11 | 21 | 25 | 26 | 19 |
| Mining | 0 | 1 | 2 | 1 | 1 | 3 | 6 | 5 |
Meritorious certificates issued
| 2024-25 | 2023-24 | 2022-23 | 2021-22 | 2020-21 | 2019-20 | 2018-19 | 2017-18 | 2016-17 |
|---|---|---|---|---|---|---|---|---|
| 23 | 19 | 33 | 32 | 27 | 18 | 24 | 14 | 22 |
Registered surveyors
| 2024-25 | 2023-24 | 2022-23 | 2021-22 | 2020-21 | 2019-20 | 2018-19 | 2017-18 | |
|---|---|---|---|---|---|---|---|---|
| Land | 829 | 844 | 862 | 900 | 908 | 920 | 928 | 916 |
| Mining | 94 | 97 | 99 | 100 | 105 | 110 | 116 | 128 |
| Land and mining | 15 | 15 | 15 | 15 | 17 | 18 | 15 | 19 |
| Total | 938 | 956 | 976 | 1015 | 1030 | 1048 | 1059 | 1063 |
Gender diversity
Female registered surveyors
Disclaimers
- During the transition of the BOSSI Register to the Government Licensing System in March 2020 the data contained in the database was reviewed and cleansed. Duplicates, incomplete and incorrect records were updated or removed. Historical data in the Trends section of this report has not been recalculated.
- The percentage labels on all pie charts in this document may not sum to 100% due to rounding.
