function SetResidences(ent, pos)
    for k, v in pairs(Residences.Groups) do
        if v:GetPos():Distance(pos) < 20 then
            ent:SetNWString("Residency", k)
        end
    end
end


function RegisterResidences()
    local Ents = ents.GetAll()

    for k, v in pairs(Ents) do
        local pos = v:GetPos()
        local class = v:GetClass()

        if table.HasValue(DoorClasses, class) then
            SetResidences(v, pos)

        end
    end
end
hook.Add( "InitPostEntity", "Register_Residences", RegisterResidences )