diff --git a/README.md b/README.md
index 2c30972..91c65a9 100644
--- a/README.md
+++ b/README.md
@@ -58,9 +58,10 @@ python -m venv .venv
 |------|-------------|
 | `-create-db` | Create the complete City2TABULA database (CityDB infrastructure + schemas + data import) |
 | `-reset-db` | Reset everything: drop all schemas and recreate the complete database |
-| `-reset-citydb` | Reset only CityDB infrastructure (drop CityDB schemas, recreate, and re-import data) |
 | `-reset-city2tabula` | Reset only City2TABULA schemas (preserves CityDB) |
-| `-extract-features` | Run the feature extraction pipeline |
+| `-import-data` | Import new 3D city data into an existing database, skipping files already imported |
+| `-extract-features` | Run the feature extraction pipeline over buildings not yet processed |
+| `-link-pylovo` | Link 3D buildings to PyLovo res/oth via IoU spatial join (after `-extract-features`) |
 | `-version` / `-v` | Print version and exit |
 
 ---
diff --git a/cmd/c2t/main.go b/cmd/c2t/main.go
index d0d3a77..618812c 100644
--- a/cmd/c2t/main.go
+++ b/cmd/c2t/main.go
@@ -54,15 +54,11 @@ func main() {
 		utils.Info.Println(flagMessages.CreateDB.Progress)
 		if err := db.CreateCompleteDatabase(&config, pool, "", ""); err != nil {
 			if strings.Contains(err.Error(), "already exists") {
-				if strings.Contains(config.DB.Host, "docker") {
-					utils.Error.Println(flagMessages.CreateDB.Error)
-					utils.Info.Println(flagMessages.CreateDB.Custom)
-					os.Exit(1)
-				}
+				utils.Error.Println(flagMessages.CreateDB.Error)
+				utils.Info.Println(flagMessages.CreateDB.Custom)
+				os.Exit(1)
 			}
-			utils.Info.Println("Consider changing the database name in .env file or reset the existing database using the -reset-db flag.")
 			utils.Error.Fatalf(flagMessages.CreateDB.Error+": %v", err)
-
 		}
 		utils.Info.Println(flagMessages.CreateDB.Success)
 	}
@@ -76,14 +72,6 @@ func main() {
 		return
 	}
 
-	if f.ResetCityDB {
-		utils.Info.Println(flagMessages.ResetCityDB.Progress)
-		if err := db.ResetCityDBOnly(&config, pool); err != nil {
-			utils.Error.Fatalf(flagMessages.ResetCityDB.Error+": %v", err)
-		}
-		utils.Info.Println(flagMessages.ResetCityDB.Success)
-	}
-
 	if f.ImportData {
 		utils.Info.Println(flagMessages.ImportData.Progress)
 		if err := db.ImportAllData(&config, pool, f.Bbox, f.BboxMode); err != nil {
diff --git a/internal/db/composite_setup_test.go b/internal/db/composite_setup_test.go
index 1afe8f5..a55cbc1 100644
--- a/internal/db/composite_setup_test.go
+++ b/internal/db/composite_setup_test.go
@@ -138,66 +138,6 @@ func TestResetCompleteDatabase_CreateCompleteDatabaseFailure(t *testing.T) {
 	}
 }
 
-// --- ResetCityDBOnly ---
-
-func TestResetCityDBOnly_CreateCityDBFailure(t *testing.T) {
-	cfg := fullCfg("citytabula_dbtest")
-	cfg.CityDB.SQLScripts.CreateDB = writeSQLFixture(t, `THIS IS NOT VALID SQL;`)
-	cfg.CityDB.SQLScripts.CreateSchema = writeSQLFixture(t, `CREATE SCHEMA :"schema_name";`)
-
-	err := db.ResetCityDBOnly(cfg, testPool)
-	if err == nil {
-		t.Fatal("expected an error when CreateCityDB fails, got nil")
-	}
-	if !strings.Contains(err.Error(), "failed to recreate CityDB") {
-		t.Errorf("expected ResetCityDBOnly's own error wrap, got: %v", err)
-	}
-}
-
-func TestResetCityDBOnly_ImportCityDBDataFailure(t *testing.T) {
-	ctx := context.Background()
-	cfg := fullCfg("citytabula_dbtest")
-	cfg.DB.Schemas.Lod2 = "rcdo_import_fail_lod2"
-	cfg.DB.Schemas.Lod3 = "rcdo_import_fail_lod3"
-	dropSchemasOnCleanup(t, ctx, cfg.DB.Schemas.Lod2, cfg.DB.Schemas.Lod3)
-	cfg.CityDB.SQLScripts.CreateDB = writeSQLFixture(t, `SELECT 1;`)
-	cfg.CityDB.SQLScripts.CreateSchema = writeSQLFixture(t, `CREATE SCHEMA :"schema_name";`)
-	cfg.CityDB.ToolPath = writeFakeCityDBExecutable(t, 1) // fails -help
-
-	err := db.ResetCityDBOnly(cfg, testPool)
-	if err == nil {
-		t.Fatal("expected an error when ImportCityDBData fails, got nil")
-	}
-	if !strings.Contains(err.Error(), "failed to import CityDB data") {
-		t.Errorf("expected ResetCityDBOnly's own error wrap, got: %v", err)
-	}
-}
-
-// TestResetCityDBOnly_Success is the one full end-to-end success case reachable
-// without a real TABULA CSV or the real CityDB tool: ResetCityDBOnly never
-// calls ImportSupplementaryData, and importCityDBFiles treats a missing LOD
-// data directory as an optional skip (warn, not fail) rather than an error -
-// so pointing Data.Lod2/Lod3 at paths that don't exist lets the fake citydb
-// executable's -help check succeed and the whole call return nil.
-func TestResetCityDBOnly_Success(t *testing.T) {
-	ctx := context.Background()
-	cfg := fullCfg("citytabula_dbtest")
-	cfg.DB.Schemas.Lod2 = "rcdo_success_lod2"
-	cfg.DB.Schemas.Lod3 = "rcdo_success_lod3"
-	dropSchemasOnCleanup(t, ctx, cfg.DB.Schemas.Lod2, cfg.DB.Schemas.Lod3)
-	cfg.CityDB.SQLScripts.CreateDB = writeSQLFixture(t, `SELECT 1;`)
-	cfg.CityDB.SQLScripts.CreateSchema = writeSQLFixture(t, `CREATE SCHEMA :"schema_name";`)
-	cfg.CityDB.ToolPath = writeFakeCityDBExecutable(t, 0) // succeeds -help
-	cfg.Data = &config.DataPaths{Lod2: "/nonexistent/lod2", Lod3: "/nonexistent/lod3"}
-
-	if err := db.ResetCityDBOnly(cfg, testPool); err != nil {
-		t.Fatalf("ResetCityDBOnly: %v", err)
-	}
-	if !schemaExists(t, ctx, cfg.DB.Schemas.Lod2) {
-		t.Errorf("expected schema %q to exist after ResetCityDBOnly", cfg.DB.Schemas.Lod2)
-	}
-}
-
 // --- ImportAllData ---
 
 // TestImportAllData_ImportSupplementaryDataFailure covers ImportAllData's
diff --git a/internal/db/setup.go b/internal/db/setup.go
index 6dcb3a4..8de1c12 100644
--- a/internal/db/setup.go
+++ b/internal/db/setup.go
@@ -60,29 +60,6 @@ func ResetCompleteDatabase(config *config.Config, conn *pgxpool.Pool) error {
 	return nil
 }
 
-// ResetCityDBOnly resets only the CityDB infrastructure (preserves City2TABULA schemas)
-func ResetCityDBOnly(config *config.Config, conn *pgxpool.Pool) error {
-	utils.Info.Println("Resetting CityDB infrastructure only...")
-
-	// Step 1: Drop CityDB schemas
-	if err := DropCityDBSchemas(config, conn); err != nil {
-		utils.Warn.Printf("Warning during CityDB cleanup: %v", err)
-	}
-
-	// Step 2: Recreate CityDB
-	if err := CreateCityDB(config); err != nil {
-		return fmt.Errorf("failed to recreate CityDB: %w", err)
-	}
-
-	// Step 3: Re-import CityDB data only
-	if err := importer.ImportCityDBData(conn, config, "", ""); err != nil {
-		return fmt.Errorf("failed to import CityDB data: %w", err)
-	}
-
-	utils.Info.Println("CityDB reset completed successfully")
-	return nil
-}
-
 // RunCity2TabulaDBSetup creates the city2tabula and tabula schemas and runs all setup job queues.
 func RunCity2TabulaDBSetup(config *config.Config, conn *pgxpool.Pool) error {
 	schemas := []string{config.DB.Schemas.City2Tabula, config.DB.Schemas.Tabula}
diff --git a/internal/flags/flags.go b/internal/flags/flags.go
index 898f0fd..1262dec 100644
--- a/internal/flags/flags.go
+++ b/internal/flags/flags.go
@@ -5,7 +5,6 @@ import "flag"
 type Flags struct {
 	CreateDB        bool
 	ResetDB         bool
-	ResetCityDB     bool
 	ImportData      bool
 	ResetC2T        bool
 	ExtractFeatures bool
@@ -18,12 +17,11 @@ type Flags struct {
 
 func ParseFlags() *Flags {
 	f := &Flags{}
-	flag.BoolVar(&f.CreateDB, "create-db", false, "Create the complete City2TABULA database (CityDB infrastructure + schemas + data import)")
-	flag.BoolVar(&f.ResetDB, "reset-db", false, "Reset everything: drop all schemas and recreate the complete database")
-	flag.BoolVar(&f.ResetCityDB, "reset-citydb", false, "Reset only CityDB infrastructure (drop CityDB schemas, recreate them, and re-import CityDB data)")
-	flag.BoolVar(&f.ImportData, "import-data", false, "Import data into existing CityDB schemas (useful if you want to keep existing City2TABULA schemas and import new 3D city data)")
+	flag.BoolVar(&f.CreateDB, "create-db", false, "Create the complete City2TABULA database (CityDB infrastructure + schemas + first data import). Refuses to run if the database already exists; use -import-data to add data to one")
+	flag.BoolVar(&f.ResetDB, "reset-db", false, "Destructive. Drop all schemas, including every extracted feature and hand correction, and recreate the database from scratch")
+	flag.BoolVar(&f.ImportData, "import-data", false, "Import new 3D city data into an existing database, skipping files already imported. Follow with -extract-features to process the new buildings")
 	flag.BoolVar(&f.ResetC2T, "reset-city2tabula", false, "Reset only City2TABULA schemas (preserve CityDB)")
-	flag.BoolVar(&f.ExtractFeatures, "extract-features", false, "Run the feature extraction pipeline")
+	flag.BoolVar(&f.ExtractFeatures, "extract-features", false, "Run the feature extraction pipeline over buildings not yet processed. Safe to re-run; already-processed buildings are skipped")
 	flag.BoolVar(&f.LinkPylovo, "link-pylovo", false, "Link 3D buildings to PyLovo res/oth via IoU spatial join (requires -extract-features to have run first)")
 	flag.BoolVar(&f.ShowVersion, "version", false, "print version and exit")
 	flag.BoolVar(&f.ShowV, "v", false, "print version and exit (shorthand)")
@@ -42,7 +40,6 @@ type Msg struct {
 
 type CreateDBMsg Msg
 type ResetDBMsg Msg
-type ResetCityDBMsg Msg
 type ResetC2TMsg Msg
 type ExtractFeaturesMsg Msg
 type LinkPylovoMsg Msg
@@ -51,31 +48,38 @@ type ImportDataMsg Msg
 // Define messages for each flag
 var (
 	CreateDBMessages = CreateDBMsg{
-		Custom: `Database already exists!
+		Custom: `Database already exists.
 
-		Please consider changing the database name using if you are processing different data, or reset the database if you want to overwrite existing data.
-
-		# To change the database name, use ONE of the following commands based on your operating system:
+		Pick the command that matches what you are trying to do:
 
 		----------------------------
 
-		1) For Linux: make configure
+		Adding new 3D city data to this database
 
-		2) For Windows: setup.bat configure
+			c2t -import-data
+			c2t -extract-features
 
-		3) For PowerShell: .\setup.ps1 configure
+		Files already imported are skipped and buildings already processed are
+		not reprocessed, so both are safe to re-run. This keeps everything
+		already extracted, including any hand-corrected buildings.
 
 		----------------------------
 
-		# To reset the database, use ONE of the following commands based on your operating system:
+		Building a second database alongside this one
 
-		----------------------------
+		Change DB_NAME, then re-run -create-db:
 
-		1) For Linux: make reset-db
+			Linux:      make configure
+			Windows:    setup.bat configure
+			PowerShell: .\setup.ps1 configure
 
-		2) For Windows: setup.bat reset-db
+		----------------------------
 
-		3) For PowerShell: .\setup.ps1 reset-db
+		Starting over and discarding everything in this database
+
+			Linux:      make reset-db
+			Windows:    setup.bat reset-db
+			PowerShell: .\setup.ps1 reset-db
 
 		----------------------------
 		`,
@@ -88,11 +92,6 @@ var (
 		Success:  "Database reset successfully",
 		Error:    "Failed to reset database",
 	}
-	ResetCityDBMessages = ResetCityDBMsg{
-		Progress: "Resetting CityDB...",
-		Success:  "CityDB reset successfully",
-		Error:    "Failed to reset CityDB",
-	}
 	ResetC2TMessages = ResetC2TMsg{
 		Progress: "Resetting City2TABULA schemas...",
 		Success:  "City2TABULA schemas reset successfully",
@@ -119,7 +118,6 @@ var (
 type Messages struct {
 	CreateDB        CreateDBMsg
 	ResetDB         ResetDBMsg
-	ResetCityDB     ResetCityDBMsg
 	ResetC2T        ResetC2TMsg
 	ExtractFeatures ExtractFeaturesMsg
 	LinkPylovo      LinkPylovoMsg
@@ -129,7 +127,6 @@ type Messages struct {
 var AllMessages = Messages{
 	CreateDB:        CreateDBMessages,
 	ResetDB:         ResetDBMessages,
-	ResetCityDB:     ResetCityDBMessages,
 	ResetC2T:        ResetC2TMessages,
 	ExtractFeatures: ExtractFeaturesMessages,
 	LinkPylovo:      LinkPylovoMessages,
diff --git a/internal/flags/flags_test.go b/internal/flags/flags_test.go
index cf25878..35442f8 100644
--- a/internal/flags/flags_test.go
+++ b/internal/flags/flags_test.go
@@ -3,6 +3,7 @@ package flags
 import (
 	"flag"
 	"os"
+	"strings"
 	"testing"
 )
 
@@ -22,8 +23,8 @@ func TestParseFlags_EachFlagSetsItsOwnField(t *testing.T) {
 		get      func(f *Flags) bool
 	}{
 		{"create-db", func(f *Flags) bool { return f.CreateDB }},
+		{"import-data", func(f *Flags) bool { return f.ImportData }},
 		{"reset-db", func(f *Flags) bool { return f.ResetDB }},
-		{"reset-citydb", func(f *Flags) bool { return f.ResetCityDB }},
 		{"reset-city2tabula", func(f *Flags) bool { return f.ResetC2T }},
 		{"extract-features", func(f *Flags) bool { return f.ExtractFeatures }},
 		{"link-pylovo", func(f *Flags) bool { return f.LinkPylovo }},
@@ -62,7 +63,7 @@ func TestParseFlags_NoFlagsAllDefaultFalse(t *testing.T) {
 
 	f := ParseFlags()
 
-	if f.CreateDB || f.ResetDB || f.ResetCityDB || f.ResetC2T ||
+	if f.CreateDB || f.ResetDB || f.ResetC2T || f.ImportData ||
 		f.ExtractFeatures || f.LinkPylovo || f.ShowVersion || f.ShowV {
 		t.Errorf("expected every flag to default to false with no args, got %+v", f)
 	}
@@ -83,3 +84,23 @@ func TestParseFlags_MultipleFlagsCombine(t *testing.T) {
 		t.Errorf("expected unrelated flags to stay false, got %+v", f)
 	}
 }
+
+// The guidance printed when -create-db meets an existing database is the only
+// place a user holding new source files is told what to run instead. Offering
+// reset-db ahead of -import-data there discards every extracted feature and
+// hand correction in the database.
+func TestCreateDBGuidanceOffersImportBeforeReset(t *testing.T) {
+	msg := AllMessages.CreateDB.Custom
+
+	importIdx := strings.Index(msg, "-import-data")
+	if importIdx == -1 {
+		t.Fatal("expected the already-exists guidance to name -import-data")
+	}
+	resetIdx := strings.Index(msg, "reset-db")
+	if resetIdx == -1 {
+		t.Fatal("expected the already-exists guidance to still name reset-db")
+	}
+	if resetIdx < importIdx {
+		t.Error("expected -import-data to be offered before reset-db")
+	}
+}