Jane
REGISTERED
In my opinion, no. It is of my opinion it is a deck.
The major issues are setbacks which are generally ZONING. The building code generally increases the fire ratings the closer you get to property lines, not that you can't built up to them. If you couldn't built up to property lines you wouldn't have duplexes, townhouses, ect.
Unfortunately your situation is mostly going to be zoning and local, not building or fire code violation.
In the city PD zoning (since we're R2PD) it says:
(i) Notwithstanding the above provision, if the development has subdivided one-family lots which abut other parcels of land, the specific zone regulations shall apply for rear and side yard setbacks on the subdivided lots. The required setback area shall be landscaped.
Since we have separate one family lots, then the R2 zoning takes precedent which means that the deck can't project more than 12 feet or be any closer to the side property lines than 3 feet. Also, there can't be more than 40% lot coverage of accessory structures. Currently 98% of his lot is covered with structures.