private async Task <Guid> SaveBuilding(BuildingModel model)
        {
            var building = model.MapToDatabase();

            building.Owner      = User.FindFirstValue(ClaimTypes.NameIdentifier);
            building.AddedAtUtc = DateTime.Now;
            building.Id         = Guid.NewGuid();
            building.IsActive   = true;
            await _buildingService.SaveAsync(building);

            return(building.Id);
        }