diff --git a/openrct2.common.props b/openrct2.common.props
index 13ce36d2ec..3a84b2163d 100644
--- a/openrct2.common.props
+++ b/openrct2.common.props
@@ -29,11 +29,14 @@
 
   <ItemDefinitionGroup>
     <ClCompile>
-      <DisableSpecificWarnings>4091;4100;4201;4244;4245;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <DisableSpecificWarnings>4091;4100;4201;4204;4206;4221;4244;4245;%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <!-- Warnings:
              C4091: 'keyword': ignored on left of 'type' when no variable is declared
              C4100: 'identifier': unreferenced formal parameter
              C4201: nonstandard extension used: nameless struct/union
+             C4204: nonstandard extension used: non-constant aggregate initializer
+             C4206: nonstandard extension used: translation unit is empty
+             C4221: nonstandard extension used: 'identifier': cannot be initialized using address of automatic variable 'identifier'
              C4244: 'conversion_type': conversion from 'type1' to 'type2', possible loss of data
              C4245: 'conversion_type': conversion from 'type1' to 'type2', signed/unsigned mismatch
       -->
diff --git a/src/openrct2/Imaging.cpp b/src/openrct2/Imaging.cpp
index 81795ee03a..d8302914f1 100644
--- a/src/openrct2/Imaging.cpp
+++ b/src/openrct2/Imaging.cpp
@@ -14,6 +14,8 @@
  *****************************************************************************/
 #pragma endregion
 
+#pragma warning(disable : 4611) // interaction between '_setjmp' and C++ object destruction is non-portable
+
 #include <png.h>
 #include "core/Exception.hpp"
 #include "core/FileStream.hpp"
diff --git a/src/openrct2/core/String.cpp b/src/openrct2/core/String.cpp
index 748207e281..0c6777cd92 100644
--- a/src/openrct2/core/String.cpp
+++ b/src/openrct2/core/String.cpp
@@ -222,7 +222,7 @@ namespace String
         {
             // Try again with bigger buffer
             buffer = Memory::Reallocate<utf8>(buffer, bufferSize);
-            int len = vsnprintf(buffer, bufferSize, format, args);
+            len = vsnprintf(buffer, bufferSize, format, args);
             if (len < 0)
             {
                 Memory::Free(buffer);
diff --git a/src/openrct2/drawing/drawing_fast.cpp b/src/openrct2/drawing/drawing_fast.cpp
index a07e2be091..516ef0a45b 100644
--- a/src/openrct2/drawing/drawing_fast.cpp
+++ b/src/openrct2/drawing/drawing_fast.cpp
@@ -14,6 +14,8 @@
  *****************************************************************************/
 #pragma endregion
 
+#pragma warning(disable : 4127) // conditional expression is constant
+
 extern "C"
 {
     #include "drawing.h"
diff --git a/src/openrct2/drawing/sprite.c b/src/openrct2/drawing/sprite.c
index 3fdddca8c8..a9fde05ad3 100644
--- a/src/openrct2/drawing/sprite.c
+++ b/src/openrct2/drawing/sprite.c
@@ -73,26 +73,6 @@ bool gfx_load_g1()
 	if (file != NULL) {
 		rct_g1_header header;
 		if (SDL_RWread(file, &header, 8, 1) == 1) {
-			/* We need to load in the data file, which has an `offset` field,
-			 * which is supposed to hold a pointer, but is only 32 bit long.
-			 * We will load a 32 bit version of rct_g1_element and then convert
-			 * pointers to however long our machine wants them.
-			 */
-
-			#pragma pack(push, 1)
-			// Size: 0x10
-			typedef struct {
-				uint32 offset;			// 0x00 note: uint32 always!
-				sint16 width;			// 0x04
-				sint16 height;			// 0x06
-				sint16 x_offset;		// 0x08
-				sint16 y_offset;		// 0x0A
-				uint16 flags;			// 0x0C
-				uint16 zoomed_offset;	// 0x0E
-			} rct_g1_element_32bit;
-			assert_struct_size(rct_g1_element_32bit, 0x10);
-			#pragma pack(pop)
-
 			/* number of elements is stored in g1.dat, but because the entry
 			 * headers are static, this can't be variable until made into a
 			 * dynamic array.
@@ -547,8 +527,8 @@ void FASTCALL gfx_draw_sprite_raw_masked_software(rct_drawpixelinfo *dpi, int x,
 	int maskWrap = imgMask->width - width;
 	int colourWrap = imgColour->width - width;
 	int dstWrap = ((dpi->width + dpi->pitch) - width);
-	for (int y = top; y < bottom; y++) {
-		for (int x = left; x < right; x++) {
+	for (int yy = top; yy < bottom; yy++) {
+		for (int xx = left; xx < right; xx++) {
 			uint8 colour = (*colourSrc) & (*maskSrc);
 			if (colour != 0) {
 				*dst = colour;
diff --git a/src/openrct2/drawing/string.c b/src/openrct2/drawing/string.c
index f9c0b3ade7..79b39825c6 100644
--- a/src/openrct2/drawing/string.c
+++ b/src/openrct2/drawing/string.c
@@ -181,7 +181,7 @@ int gfx_wrap_string(utf8 *text, int width, int *outNumLines, int *outFontHeight)
 	utf8 *currentWord = NULL;
 
 	// Width of line up to current word
-	int currentWidth;
+	int currentWidth = 0;
 
 	utf8 *ch = text;
 	utf8 *firstCh = text;
diff --git a/src/openrct2/interface/Theme.cpp b/src/openrct2/interface/Theme.cpp
index 8e91b8930b..0cf808973c 100644
--- a/src/openrct2/interface/Theme.cpp
+++ b/src/openrct2/interface/Theme.cpp
@@ -14,6 +14,8 @@
  *****************************************************************************/
 #pragma endregion
 
+#pragma warning(disable : 4706) // assignment within conditional expression
+
 #include <vector>
 #include <jansson.h>