From what you have said about half year figures at end of June and as you have posted in the Taylor Wimpey catagory I assume the housebuilder is Taylor Wimpey.
This forum prefers those posting to name the housebuilder causing them the problem so others can be warned. That way eventually gaining a very bad reputation (which all three I mention already have) may, just may shame them into putting the customer before profits and bonuses.
Changes to the designHousebuilders cannot make any design changes to the house you are buying without informing you. You then have the option to refuse and not buy the home. This is outlined in the
Consumer Code for Home Builders. It would appear that your housebuilder is breaching many of the requirements, presumably one (1.2) being not giving you a copy of the Code at Reservation! You can download a copy from the linked page.
Moving a WC slightly nearer the SVP makes sense as it cuts down the boxing required and may give more leg room. However repositioning the WC to another wall or moving more than 300mm would be considered a major change. You also have to question the reason for this. Is it being done in this house type in every plot? The fact that the revised WC layout is not on the current plans suggest this is a one-off bodge to get over something.
Re locating the Consumer Unit (fuse board) may be due to the home being terraced and it not being possible to fit the meter box on an outside wall adjacent to the kitchen units. Move of a concern is not the location of the consumer unit but the height. There is conflict between strictly complying the accessibility requirement of the mobility regulations (Part M) and sensible heath and safety. At "waist height" this electricity box could easily be accessed by small children. The generally agreed acceptable height is 1500mm above floor level. This can be moved. "Cant be done" doesn't exist in housebuilding. More like "too expensive" "too time consuming" Houses can be demolished and re built so "cannot be done" is another lie!
Moving the cloakroom at the expense of space in your living room is probably the most serious of all the changes. This will effect the property re sale value as well as the desirability. Indeed, you wouldn't have bought a home like this.
Under the Consumer Code housebuilders are required to provide all pertinent information to buyers so they can make an informed choice whether to buy or not. You should have been made aware of the bat boxes. These will be a planning requirement. (The green environmental lobby has gone mad in this country.) In all probability, no bats will ever move in, but you may find you have additional covenants in your title deeds allowing access by bat experts to inspect the box and any bats, possibly install cameras to monitor bats. You will almost certainly have to pay for the box to be maintained, perhaps even the inspections. Your solicitor should tell you about this. Hopefully you haven't used any firm suggested by the builder. Under the Code (2.5) they cannot force you to use their pet firm of solicitors, but many housebuilders do.
It appears that your housebuilder is making it up as they build your home. they clearly don't know what they are doing and care nothing about quality, service or even respect your home by writing obscenities on your walls! You must make your own decision but taking everything into account, my advice would be
not to buy this home.
If you are forced to buy it, then you will need proof such as copies of plans, letters, emails, recordings of conversations with the builder's staff to prove your case should you decide to make a claim using the
Consumer Code Adjudication Scheme In any event, please do not legally complete at the end of this month just so the CEO can get his bonus. Housebuilders must give you 14 days notice in writing to legally complete
after the home has been "finalled" by Building Control inspector. and the warranty provider. It really sounds like they have no chance of completing your home in the next week of so - anyway it most certainly could not have passed a final inspection as it is.
Lastly, if you do buy (and I really hope you can pull out) please get the home professionally and independently snagged and inspected before you legally complete. That way all the snags, defects and regulatory and warranty standard breaches of requirements can be potentially sorted out before you move in. I only recommend Martyn Maxwell of brickkickers.co.uk