Although I totally agree with the idea that you should not ever give your work away for free, I have to agree with Jim in that he may be in a odd position since you are not only a client but a photographer too. He may have wanted to have it shot by an AP, but can not since he does not want to offend you (being a client), and at the same time is not really thrilled with your images. From a composition stand point, they are nice, but the interior image lacks luster when it comes to lighting.
I would recommend that you concentrate on exterior images and talk fees with him on those. And then maybe suggest that he bring in a specialist to shoot the interiors. And as long as you are there for the shooting, it could be a great learning experience for you to watch someone who knows lighting. That or make the investment in some hot lights and start fooling around with them around the house. Being that you live there, you will see much more than another photographer coming just for the day, and when you get to the point where the lighting is spot on, maybe talking about licensing for your interior images will go better.
From a business stand point, did you discuss the project with him or just shoot the images and show them to him? Remember, photography is really a service industry and making sure that you supply good service is key. In general architects want to know that you are taking their point of view into mind when creating the image. When planning a shoot, I usually talk extensively with the client about what they feel is important to them, how they want it accented, their end use, publishing and etc. This goes a long way in convincing the prospect that your fees are worth it. Now with this project, it is a little different since you live there, but sitting down with the architect and talking this over could help convince him that the images you create will be worth the investment.