I would say gas line is cheaper to move...with plumbing, you have supply lines AND drains. Gas lines are flexible hoses typically and are pretty easy to relocate!

I think you sent me a private email a while back...sorry if I didn't reply. We are so busy right now!

Thanks, yes... I was kind of thinking the same thing. I was originally going to put the sink/dw in an island. But not so sure now... I've messed with my plan sooo much, I just can't seem to figure out what would look/function best.

Yeah, I did send you an email... that's ok! Being busy is a good thing right??!!

Gas line definitely! In fact, you could pretty easily DIY the needed run and just have a plumber do the hook up in the attic if you're inclined to save some more money.

Agree. Gas is easy.

Also agree that hood vent might be a concern. If you don't already have a vent, probably won't matter where you put a new one--same(ish) cost, but if you do, it MIGHT be more cost effective to move the plumbing instead.

Moving plumbing costs will vary depending on your foundation.

Is the wall where the range might move an exterior wall? If yes, then moving the vent is pretty easy. If it is internal then the vent will have to be handled too (unless you are having a less effective recirculating hood).

I thought that flexible gas pipe was only allowed where the pipe is accessible. Ours is hard line up to the shut off valve and only flexible for the last few feet.

There can be a lot of factors that influence the cost. How far are you moving each? What is under the floor. If you are on slab, that increases the cost of moving something to the island. I'm not sure whether code allows the dishwasher and garbage disposal to share a circuit with the outlets. If it can't, then moving the sink to the island needs electrical too.

If you aren't on slab, moving the range might be cheaper, but not by enough to drive the decision.

To answer some questions, the house is not on a slab, there is an unfinished basement underneath...so pipes/gas lines pretty accessible. I hadn't considered the venting. Here are a couple different layouts:

Plan A - Range on interior wall.

Plan B - Sink in island

Plan B has a lot of buttbumping potential--I'd try to avoid having the sink and stove back-to-back.

Is there another story of your house over the interior wall stove location in the kitchen? If there is, then it will be hard to vent that location. That would add to the cost of moving the stove there unless you do a recirculating hood. The range icon that you've used has a little grill on it - will you have grill on your range? If you do, you will want very good venting because grills can produce a lot of smoke.

If there is just roof and attic above the range location or something else that allows the vent to go straight up like a closet that it can be run through, then getting the vent there shouldn't be a problem.

I think that one adds the cost of running a vent straight up through the roof to moving the gas line, moving the range will come out about the same cost as moving the sink and dishwasher. If you have to get the vent to one of the exterior walls, it might cost more than moving the sink. How much is going to depend on construction details like which way the joists above the vent run.

Outside cost issues, do you usually have one cook in the kitchen? The space between the sink and the range in Plan B might work better if you often have two or more working in the kitchen at the same time. It looks like the aisle between the sink and range in Plan A is a bit over 3' which is tight if you are going to have people at both of them at the same time, but okay if it is mainly a one person kitchen.

Where are you storing dishes, flatware, utensils, pots and pans? In plan B, I guess that the utensils and flat ware could go in the 18" or 24" drawer units by the range and sink but dishes and or pots and pans might have to travel farther from the DW and range - or if dishes are stored to the left of the range, someone at the range would be in the way of someone putting away dishes.

On the other hand, B is more convenient for tasks like filling a pasta or soup pot with water. And having more work counter/landing space to the side of the range is nice. For a one cook kitchen, the tight work triangle of plan B might work well

Plan A gives more room to the table area. Plan B also gives more room to the sitting area.

There is also traffic flow. Where do the two doorways on the right side of the kitchen go? In plan A, someone going between those two doors is likely to go through the cooking aisle.

I can see why you would be torn between the two plans.

Plan A is something I was just playing around with today. There is a 2nd story over top the range in plan A, so I did consider the venting aspect. The range icon in the plan is just a generic range, I probably will not have a high end range with a griddle, etc.

Plan B was my original plan that I have been playing with and tweeking. If I had to choose between more room in the eating area or the family room area, I would choose the family room. Even though I want a table area, we will probably use the island seating more often.

Here you can see the whole 1st floor. The doorway at the top of the drawing next to the stairs is the side entrance to the house and the one we will use most.

Your house, but do you want that much space between the sink & stove? We did at one time & prep and water dripping, etc always made the kitchen floor a mess. Just finished the rebuild & put the new range on the cabinet with the sink - much better work flow.

BTW - the flexible gas line mentioned is NOT the one that goes from the wall to the appliance - different beast altogether.. Gastite is the trade name. You may or may not beable to use it depending upon your jurisdiction & you probably will have to go to ebay to get it yourself as most parts houses won't sell it to 'untrained' individuals. They claim leakage issues form not doing it right, but you have the same issues with black iron. We ran a hard line down the wall & the plumber hooked up the gastite in the attic. Just beware - first plumber I called wanted $1300 for the job & the 2nd one was happy with $350. The 2nd guy was a master

ratflinger.... True, in plan A the sink and stove are a little far from each other. I guess I could put a prep sink in the island if I decide to go with that plan.

In plan B the sink and stove are right across from each other. This is my original plan. But since I have a lot of time before all this goes down, I am always tweeking the layout.

The gas line but with a caveat.

Sometimes what you have doesn't meet code to begin with and they will need to fix that.

Our range reposition was really cheap - but we moved the range about 3 feet and in a straight shot. The plumber ran hard pipe in the toe kick area of the prep run.

We added a sink for more money but not a lot, because the sink was within 2 feet of an existing drain stack and literally right above the hot and cold water supply pipes in the basement.

The water lines are fairly easy. I think you're in the county and can use plastic, we still have to use copper (costs quite a bit more). This is another place where they might get sticky if you have galvanized pipes and want to or be forced to do more work.

Drain lines are more complicated. They need to slope properly to intersect one of the large stacks. And then there's the venting thing where they'd like the sink drain line to vent out through the roof. Oatey sells some mechanical plumbing vents that may or may not be allowed in your area.

Our total plumbing bill was about $1100, one new sink, one relocated sink, small gas line move, dishwasher hookup, and some general maintenance stuff in the basement. They bought all the pipe and fittings, we bought the sinks and faucets. All with permits and inspections.

So, I'd ask a plumbing guy. And I'd certainly ask more than one.

Gas line is much cheaper to move if it is moving from one wall another, there is only 1 line to move.

Plumbing: hot, cold water AND drain AND drain vent all go together typically. Moving the drain is the most difficult because depending on where the drain stack is, you have to create a gravity drop to the main stack. You may need to cut through the joists to do this...

It depends what length each line has to move.

I have a counter/wall gas stove top and want to move it to my island. How difficult is that?

Moving pipes (whether water or gas) would be a simple one day job if you have a raised foundation if you have a slab foundation (or worse yet a post tension slab foundation) it's going to be a big deal. Rose you should start your own thread so the answer doesn't get buried and you will get an email telling you when your post has been answered.

totally better against wall so you can put a nice hood over it. Even if you don't want the hood...in the future a new owner can elect to remove cabinets on wall and get the hood. The venting goes behind the wall ....easiest on outside wall of house...on inside wall, there is a bend to make..still okay and better than gas cooktop in island with no hood. The cost of an island hood and labour will surpass anything else you are discussing. What is wrong with the wall location?