If you paid out of pocket costs that went to the benefit of the church, like providing food or buying bibles, that could be deducted as a charity donation. You can not take a deduction for the time you put in.
The issue of taking a donation for your house is iffy. You can not take a deduction for partial use of property, but you can deduct out of pocket costs. Some people might make an argument that you can deduct a percentage of utilities and mortgage as out of pocket costs, but I would not do that because of the no partial use deduction rule.
Also,you need to be concerned about self-dealing. If you are the person in charge, and you are signing receipts to yourself as proof of your out of pocket donations, the IRS is likely to view that as self-dealing. It would be better if there was a group of elders or something who could attest to the items you claim an out of pocket expense deduction for.
