Fist let me inform you that in steps 2 and 3 you have typed different website URLs.
In step two you mention http://www.parkhouse-hc.com which seems to be a valid website while in step 3 you typed or copy pasted wrong URL: http://www.parkhousehc.com.
My guess would be that the Google verification page should be at http://www.parkhouse-hc.com/googlebb8ab2880ca0d8c0.html which doesn't seem to be the case. When you navigate to this URL you get "page not found" which means that Google can't verify that you are the owner of the site. My guess would be that you have uploaded the "googlebb8ab2880ca0d8c0.html" file somewhere other than the root of your website. If you have uploaded it correctly to the root of your website and you can see the page but the verification is still failing my next guess will be that the page is visible for authenticated users only. Verify that while logged off your are still able to see the page at the required location by Google.
We may be able to help you further if you describe, copy paste or give us a screen shot of what you see on this url: http://www.parkhouse-hc.com/googlebb8ab2880ca0d8c0.html, what do you see is in the root of your website at Administration -> File manager. and also give us the exact instruction from Google. It is also possible that you have done everything right in terms of the Google verification file location itself but there are some IIS (the service hosting your site ) settings that are preventing this html page from being accessed. In this case you will need help from your hosting administrators. All you need to tell them is that you have an html page (the "googlebb8ab2880ca0d8c0.html" file) in the root of your website that needs to be publicly accessible.