--- a/industry_cmd.c
+++ b/industry_cmd.c
@@ -20,6 +20,8 @@
 #include "economy.h"
 #include "sound.h"
 #include "variables.h"
+#include "table/industry_land.h"
+#include "table/build_industry.h"
 
 enum {
 	/* Max industries: 64000 (8 * 8000) */
@@ -47,52 +49,6 @@
 void BuildOilRig(TileIndex tile);
 void DeleteOilRig(TileIndex tile);
 
-typedef struct DrawIndustryTileStruct {
-	uint32 sprite_1;
-	uint32 sprite_2;
-
-	byte subtile_x:4;
-	byte subtile_y:4;
-	byte width:4;
-	byte height:4;
-	byte dz;
-	byte proc;
-} DrawIndustryTileStruct;
-
-
-typedef struct DrawIndustrySpec1Struct {
-	byte x;
-	byte image_1;
-	byte image_2;
-	byte image_3;
-} DrawIndustrySpec1Struct;
-
-typedef struct DrawIndustrySpec4Struct {
-	byte image_1;
-	byte image_2;
-	byte image_3;
-} DrawIndustrySpec4Struct;
-
-typedef struct IndustryTileTable {
-	TileIndexDiffC ti;
-	IndustryGfx gfx;
-} IndustryTileTable;
-
-typedef struct IndustrySpec {
-	const IndustryTileTable *const *table;
-	byte num_table;
-	byte a,b,c;
-	CargoID produced_cargo[2];
-	byte production_rate[2];
-	CargoID accepts_cargo[3];
-	byte check_proc;
-} IndustrySpec;
-
-#include "table/industry_land.h"
-#include "table/build_industry.h"
-
-
-
 static const IndustryType _industry_close_mode[IT_END] = {
 	/* COAL_MINE */          INDUSTRYLIFE_PRODUCTION,
 	/* POWER_STATION */      INDUSTRYLIFE_NOT_CLOSABLE,
@@ -367,7 +323,7 @@
 static void DrawTile_Industry(TileInfo *ti)
 {
 	const Industry* ind;
-	const DrawIndustryTileStruct *dits;
+	const DrawBuildingsTileStruct *dits;
 	byte z;
 	uint32 image, ormod;
 
@@ -378,7 +334,7 @@
 	/* Retrieve pointer to the draw industry tile struct */
 	dits = &_industry_draw_tile_data[GetIndustryGfx(ti->tile) << 2 | GetIndustryConstructionStage(ti->tile)];
 
-	image = dits->sprite_1;
+	image = dits->ground;
 	if (image & PALETTE_MODIFIER_COLOR && (image & PALETTE_SPRITE_MASK) == 0)
 		image |= ormod;
 
@@ -394,7 +350,7 @@
 	}
 
 	/* Add industry on top of the ground? */
-	image = dits->sprite_2;
+	image = dits->building;
 	if (image != 0) {
 		if (image & PALETTE_MODIFIER_COLOR && (image & PALETTE_SPRITE_MASK) == 0)
 			image |= ormod;
@@ -413,7 +369,7 @@
 	}
 
 	{
-		int proc = dits->proc - 1;
+		int proc = dits->draw_proc - 1;
 		if (proc >= 0) _industry_draw_tile_procs[proc](ti);
 	}
 }

--- a/sprite.h
+++ b/sprite.h
@@ -22,6 +22,21 @@
 	const DrawTileSeqStruct* seq;
 } DrawTileSprites;
 
+/**
+ * This structure is the same for both Industries and Houses.
+ * Buildings here reference a general type of construction
+ */
+typedef struct DrawBuildingsTileStruct {
+	SpriteID ground;
+	SpriteID building;
+	byte subtile_x:4;
+	byte subtile_y:4;
+	byte width:4;
+	byte height:4;
+	byte dz;
+	byte draw_proc;  /* this allows to specify a special drawing procedure.*/
+} DrawBuildingsTileStruct;
+
 // Iterate through all DrawTileSeqStructs in DrawTileSprites.
 #define foreach_draw_tile_seq(idx, list) for (idx = list; ((byte) idx->delta_x) != 0x80; idx++)
 

--- a/table/build_industry.h
+++ b/table/build_industry.h
@@ -1,5 +1,21 @@
 /* $Id$ */
 
+
+typedef struct IndustryTileTable {
+	TileIndexDiffC ti;
+	IndustryGfx gfx;
+} IndustryTileTable;
+
+typedef struct IndustrySpec {
+	const IndustryTileTable *const *table;
+	byte num_table;
+	byte a,b,c;
+	CargoID produced_cargo[2];
+	byte production_rate[2];
+	CargoID accepts_cargo[3];
+	byte check_proc;
+} IndustrySpec;
+
 #define MK(x,y, m) {{x, y}, m}
 
 #define MKEND {{-0x80, 0}, 0}

--- a/table/industry_land.h
+++ b/table/industry_land.h
@@ -1,8 +1,21 @@
 /* $Id$ */
 
+typedef struct DrawIndustrySpec1Struct {
+	byte x;
+	byte image_1;
+	byte image_2;
+	byte image_3;
+} DrawIndustrySpec1Struct;
+
+typedef struct DrawIndustrySpec4Struct {
+	byte image_1;
+	byte image_2;
+	byte image_3;
+} DrawIndustrySpec4Struct;
+
 #define M(s1, s2, sx, sy, w, h, dz, p) { s1, s2, sx, sy, w - 1, h - 1, dz, p }
 
-static const DrawIndustryTileStruct _industry_draw_tile_data[700] = {
+static const DrawBuildingsTileStruct _industry_draw_tile_data[700] = {
 	M(     0xf54,      0x7db,  7,  0,  9,  9,  10, 0),
 	M(     0xf54,      0x7dc,  7,  0,  9,  9,  30, 0),
 	M(     0xf54,      0x7dd,  7,  0,  9,  9,  30, 0),

--- a/table/town_land.h
+++ b/table/town_land.h
@@ -28,7 +28,7 @@
   */
 #define M(s1, s2, sx, sy, w, h, dz, p) {s1, s2, sx, sy, w - 1, h - 1, dz, p}
 
-static const DrawTownTileStruct _town_draw_tile_data[] = {
+static const DrawBuildingsTileStruct _town_draw_tile_data[] = {
 	M( 0xf54,  0x58d,  0,  0, 14, 14,   8, 0),
 	M( 0xf54,  0x58e,  0,  0, 14, 14,  60, 0),
 	M( 0xf54,  0x58f,  0,  0, 14, 14,  60, 0),

--- a/table/unmovable_land.h
+++ b/table/unmovable_land.h
@@ -1,5 +1,15 @@
 /* $Id$ */
 
+typedef struct DrawTileUnmovableStruct {
+	uint16 image;
+	byte subcoord_x;
+	byte subcoord_y;
+	byte width;
+	byte height;
+	byte z_size;
+	byte unused;
+} DrawTileUnmovableStruct;
+
 #define TILE_SEQ_END() { 0x80, 0, 0, 0, 0, 0, 0 }
 
 static const DrawTileUnmovableStruct _draw_tile_unmovable_data[] = {

--- a/town_cmd.c
+++ b/town_cmd.c
@@ -26,6 +26,7 @@
 #include "water_map.h"
 #include "variables.h"
 #include "bridge.h"
+#include "table/town_land.h"
 
 enum {
 	/* Max towns: 64000 (8 * 8000) */
@@ -54,21 +55,6 @@
 static void ClearTownHouse(Town *t, TileIndex tile);
 static void DoBuildTownHouse(Town *t, TileIndex tile);
 
-typedef struct DrawTownTileStruct {
-	SpriteID sprite_1;
-	SpriteID sprite_2;
-
-	byte subtile_x:4;
-	byte subtile_y:4;
-	byte width:4;
-	byte height:4;
-	byte dz;
-	byte proc;
-} DrawTownTileStruct;
-
-#include "table/town_land.h"
-
-
 static void TownDrawHouseLift(const TileInfo *ti)
 {
 	AddChildSpriteScreen(SPR_LIFT, 14, 60 - GetLiftPosition(ti->tile));
@@ -82,22 +68,20 @@
 
 static void DrawTile_Town(TileInfo *ti)
 {
-	const DrawTownTileStruct *dcts;
+	const DrawBuildingsTileStruct *dcts;
 	byte z;
 	uint32 image;
 
 	/* Retrieve pointer to the draw town tile struct */
 	{
 		/* this "randomizes" on the (up to) 4 variants of a building */
-		byte gfx   = GetHouseType(ti->tile);
-		byte stage = GetHouseBuildingStage(ti->tile);
 		uint variant;
 		variant  = ti->x >> 4;
 		variant ^= ti->x >> 6;
 		variant ^= ti->y >> 4;
 		variant -= ti->y >> 6;
 		variant &= 3;
-		dcts = &_town_draw_tile_data[gfx << 4 | variant << 2 | stage];
+		dcts = &_town_draw_tile_data[GetHouseType(ti->tile) << 4 | variant << 2 | GetHouseBuildingStage(ti->tile)];
 	}
 
 	z = ti->z;
@@ -105,15 +89,15 @@
 	/* Add bricks below the house? */
 	if (ti->tileh != SLOPE_FLAT) {
 		AddSortableSpriteToDraw(SPR_FOUNDATION_BASE + ti->tileh, ti->x, ti->y, 16, 16, 7, z);
-		AddChildSpriteScreen(dcts->sprite_1, 31, 1);
+		AddChildSpriteScreen(dcts->ground, 31, 1);
 		z += TILE_HEIGHT;
 	} else {
 		/* Else draw regular ground */
-		DrawGroundSprite(dcts->sprite_1);
+		DrawGroundSprite(dcts->ground);
 	}
 
 	/* Add a house on top of the ground? */
-	image = dcts->sprite_2;
+	image = dcts->building;
 	if (image != 0) {
 		if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
 
@@ -129,7 +113,7 @@
 	}
 
 	{
-		int proc = dcts->proc - 1;
+		int proc = dcts->draw_proc - 1;
 
 		if (proc >= 0) _town_draw_tile_procs[proc](ti);
 	}

--- a/unmovable_cmd.c
+++ b/unmovable_cmd.c
@@ -17,6 +17,7 @@
 #include "sprite.h"
 #include "unmovable_map.h"
 #include "variables.h"
+#include "table/unmovable_land.h"
 
 /** Destroy a HQ.
  * During normal gameplay you can only implicitely destroy a HQ when you are
@@ -119,18 +120,6 @@
 	return cost;
 }
 
-typedef struct DrawTileUnmovableStruct {
-	uint16 image;
-	byte subcoord_x;
-	byte subcoord_y;
-	byte width;
-	byte height;
-	byte z_size;
-	byte unused;
-} DrawTileUnmovableStruct;
-
-#include "table/unmovable_land.h"
-
 static void DrawTile_Unmovable(TileInfo *ti)
 {
 	uint32 image, ormod;