Project Scope – Shed Dormer and Finish of Existing Space
I have an existing unfinished second-floor space measuring approximately 15' × 26'. There is a door from this space leading to 2nd floor finished space. I would like to convert into a finished space by removing the existing roof over that portion and adding a shed dormer over 1/2 the space.
The scope I’m envisioning includes:
Cutting back the existing roof and framing a new shed dormer over a 15' × 13' area.
Installing a large picture window in the new dormer to capture light and views.
Ensuring the new dormer and room meet structural requirements (including local snow loads), as well as applicable code requirements for habitable space (headroom, egress, insulation, etc.).
Adding or upgrading floor structure as needed, plus new subfloor/finished flooring including full insulation of the space (floor, walls and ceiling for sound and temperature).
Installing insulation (roof/walls as required), electrical wiring and outlets/lighting, and integrating heating/comfort (to be determined based on existing systems).
Completing interior finishes (drywall, trim, paint) to tie into the existing finished second floor.
I’d like assistance with:
Designing and modeling the space (including the dormer and window) so it is comfortable, code-compliant, and visually integrated with the existing house.
Preparing drawings suitable for permitting and construction, and coordinating with a structural engineer or other licensed professional as needed for any required structural design and plan stamping. This in in New Hampshire.
I've attached two photos of what might be before and after. The "after" has the dormer too far back but it give a good idea of the basic ides. The right hand wall of the shed dormer would connect with the existing 2nd floor.