I'm sending in a bigger plan now
Oh, I see. So not an official development road with a fire department assembly point, but simply the fire department as a neighbor, and behind the property a footpath (yellow) from the "end of development" of a field road to a corner of the fire department property. Rights of way would need to be clarified there, whether as a resident you can legally access your property from the back (unpaved up to your own boundary). Technical and postal development (including house number) from below, resident contributions only from below, actual legal securing of the garage access route from above: