I would be cautious and check that Golden Green doesn't fall within the Mascalls Comprehensive area. It's pretty close to Hadlow so may come under the Hadlow parish. It's difficult to tell from the KCC map (which has no fine detail at all) but they do say that if you aren't sure check under the "transport" section of the school in which you are interested in the current admissions booklet.
This is the transport section copied and pasted from the Boys' Grammar part of the KCC admissions booklet:
Pupils living in the following areas and parishes are eligible for
free transport if they live more than three miles away: Brasted,
Bidborough, Chevening, Chiddingstone, Cowden, Dunton
Green, Edenbridge, Hadlow, Halstead, Hever, Hildenborough,
Ide Hill, Ightham, Kemsing, Knockholt, Langton Green, Leigh,
Otford, Pembury, Penshurst, Plaxtol, Riverhead, Seal, Sevenoaks,
Shoreham, Shipbourne, Speldhurst, Sundridge, Tonbridge,
Tunbridge Wells, Weald, Westerham."
If your parish in Golden Green doesn't fall within these parishes then I would be doubtful if you would be in the TWGSB catchment.