Homes in SG19 sell for a median of £340,000 across 485 sales over two years (HM Land Registry), which is -7% against the Central Bedfordshire median of £365,000. Set against the local average rent of £1,249 a month (ONS), that implies a 4.4% gross yield here versus 4.1% for Central Bedfordshire as a whole.
Rents are published per district, not per postcode, so the yield above applies the Central Bedfordshire average rent to SG19 prices. It's the right way to compare postcodes on entry price, but rents do vary street by street, and gross yield ignores costs, voids and mortgage interest.
SG19 averages tell you where to look, not whether one particular flat stacks up. Paste a listing and gemhome runs the actual numbers: yield, cash flow, the lender stress test, EPC work and what the public records say about that specific address.
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