diff --git a/internal/dev_server/api/api.yaml b/internal/dev_server/api/api.yaml
index 5089d56b..93adfc9b 100644
--- a/internal/dev_server/api/api.yaml
+++ b/internal/dev_server/api/api.yaml
@@ -41,6 +41,8 @@ paths:
       responses:
         204:
           description: OK. Project & overrides were removed
+        404:
+          description: no project found
     post:
       summary: Add the project to the dev server
       parameters:
diff --git a/internal/dev_server/api/server.gen.go b/internal/dev_server/api/server.gen.go
index a8b53725..e4a9e845 100644
--- a/internal/dev_server/api/server.gen.go
+++ b/internal/dev_server/api/server.gen.go
@@ -431,6 +431,14 @@ func (response DeleteDevProjectsProjectKey204Response) VisitDeleteDevProjectsPro
 	return nil
 }
 
+type DeleteDevProjectsProjectKey404Response struct {
+}
+
+func (response DeleteDevProjectsProjectKey404Response) VisitDeleteDevProjectsProjectKeyResponse(w http.ResponseWriter) error {
+	w.WriteHeader(404)
+	return nil
+}
+
 type GetDevProjectsProjectKeyRequestObject struct {
 	ProjectKey ProjectKey `json:"projectKey"`
 }
diff --git a/internal/dev_server/api/server.go b/internal/dev_server/api/server.go
index 2cd06606..11e04d6d 100644
--- a/internal/dev_server/api/server.go
+++ b/internal/dev_server/api/server.go
@@ -26,8 +26,15 @@ func (s Server) GetDevProjects(ctx context.Context, request GetDevProjectsReques
 }
 
 func (s Server) DeleteDevProjectsProjectKey(ctx context.Context, request DeleteDevProjectsProjectKeyRequestObject) (DeleteDevProjectsProjectKeyResponseObject, error) {
-	//TODO implement me
-	panic("implement me")
+	store := model.StoreFromContext(ctx)
+	deleted, err := store.DeleteDevProject(ctx, request.ProjectKey)
+	if err != nil {
+		return nil, err
+	}
+	if !deleted {
+		return DeleteDevProjectsProjectKey404Response{}, nil
+	}
+	return DeleteDevProjectsProjectKey204Response{}, nil
 }
 
 func (s Server) GetDevProjectsProjectKey(ctx context.Context, request GetDevProjectsProjectKeyRequestObject) (GetDevProjectsProjectKeyResponseObject, error) {
diff --git a/internal/dev_server/db/sqlite.go b/internal/dev_server/db/sqlite.go
index fb5db5cf..9bae25b0 100644
--- a/internal/dev_server/db/sqlite.go
+++ b/internal/dev_server/db/sqlite.go
@@ -63,6 +63,22 @@ func (s Sqlite) GetDevProject(ctx context.Context, key string) (*model.Project,
 	return &project, nil
 }
 
+func (s Sqlite) DeleteDevProject(ctx context.Context, key string) (bool, error) {
+	result, err := s.database.Exec("DELETE FROM projects where key=?", key)
+	if err != nil {
+		return false, err
+	}
+
+	rowsAffected, err := result.RowsAffected()
+	if err != nil {
+		return false, err
+	}
+	if rowsAffected == 0 {
+		return false, nil
+	}
+	return true, nil
+}
+
 func (s Sqlite) InsertProject(ctx context.Context, project model.Project) error {
 	flagsStateJson, err := project.FlagState.MarshalJSON()
 	if err != nil {
diff --git a/internal/dev_server/model/store.go b/internal/dev_server/model/store.go
index 2a338e2e..0e2dda56 100644
--- a/internal/dev_server/model/store.go
+++ b/internal/dev_server/model/store.go
@@ -14,6 +14,7 @@ const ctxKeyStore = ctxKey("model.Store")
 type Store interface {
 	GetDevProjects(ctx context.Context) ([]string, error)
 	GetDevProject(ctx context.Context, projectKey string) (*Project, error)
+	DeleteDevProject(ctx context.Context, projectKey string) (bool, error)
 	InsertProject(ctx context.Context, project Project) error
 }