This is a plan for a slightly bigger Hobbit Haven (4.4 by 3.2 metres, or approx 14 1/2 by 10 1/2 feet), with its width determined by the two windows and one door in the middle with sufficient space between them all. The depth (from front to rear wall) is determined by the height (1.8 metres or 5 foot 11 inches – for Big Folk this would be adjusted to 2.5 metres or 8 ft approx) and the arc from that – I like the idea of sticking to simple circles and part circles, which any sensible Hobbit would (I think) approve of.
Regarding the finials (the decorations above the door and the end walls): Hobbits are generally agreed to have a great fondness for flowers, and fruit, and therefore would I believe have in the classical period have carved finials in floral or fruit shapes. Likewise trees and tree forms of all kinds, including knotwork (now referred to as ‘Celtic’ knots).