diff --git a/newgrf/52425209/authors.yaml b/newgrf/52425209/authors.yaml
new file mode 100644
index 000000000..4a7827917
--- /dev/null
+++ b/newgrf/52425209/authors.yaml
@@ -0,0 +1,3 @@
+authors:
+- display-name: "kevinfields777"
+  github: "32113649"
diff --git a/newgrf/52425209/global.yaml b/newgrf/52425209/global.yaml
new file mode 100644
index 000000000..a7d4f517f
--- /dev/null
+++ b/newgrf/52425209/global.yaml
@@ -0,0 +1,6 @@
+name: "AuzObjects Water Add-Ons"
+description: |-
+  Australian-style objects for building on water, including wharves and jettys, seaplanes, terminals, and much more
+
+  Author: GarryG, with credit to Quast65 and many others for coding and graphics assistance.
+url: "https://www.tt-forums.net/viewtopic.php?t=75657"
diff --git a/newgrf/52425209/versions/20230926T051731Z.yaml b/newgrf/52425209/versions/20230926T051731Z.yaml
new file mode 100644
index 000000000..32a03a63f
--- /dev/null
+++ b/newgrf/52425209/versions/20230926T051731Z.yaml
@@ -0,0 +1,15 @@
+version: "12"
+license: "GPL v2"
+upload-date: 2023-09-26T05:17:31Z
+md5sum-partial: "a4a74e6b"
+classification:
+  set: "object"
+  palette: "32bpp"
+  has-high-res: false
+  has-sound-effects: false
+filesize: 1380844
+availability: "new-games"
+compatibility:
+- name: "vanilla"
+  conditions:
+  - ">= 12.0"