Smaller lots you can price based on total square foot. Most houses in an area will have a drive, fenced back yard and so forth. People might ask for a discount for having a pool or big bed but do not do it. If anything charge more because of the extra trimming and keeping the grass out of the pool.
That is the same logic for corner lots, there are more walks to edge and blow so they are more.
Having said that, that typically ends some where around the 10K to 12K size.