Sadly
@Mark ***********
the fact you have a condo/bank account here cuts no ice visa/extension wise.
BUT
now that people pointed out the requirements to get that 90 day Non-O issued in the UK before you come here I'd say you're way better off just getting a single entry tourist visa from the consulate comin' here, getting the 800K baht in a thai bank account in your name only and applying for a 90 day Non-O visa IN-COUNTRY (doesn't require any insurance at all) for 2000baht and then after that getting the year extension 2 months later for 1900baht