Hi jane b and welcome to the forum
Only in so far as your IP will need to calculate your individual contribution to the overall household budget. For instance if you earn £1,000 per month and your husband earns £2,000, then you are deemed to contribute 33% to the overall household and should therefore pay 33% of all shared household bills such as rent/mortgage, council tax, heat and light etc. These figures will be used by your IP to calculate your own individual surplus income, and tehrefore your husband should not be affected.
Your husband's property will generally be safe, unless you have been married for a long time which I suspect you have not, or have made any significant financial contribution to the property from your own money - such as paying for an extension or attic conversion. This is probably unlikely given your debt situation.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
For further details contact me at
http://www.melaniegiles.com and view my IVA blog at:
http://melaniegiles.blogs.iva.co.uk