Savannah Cat Generations (F1–F5) & UK Law

If you are researching Savannah cats, you will quickly run into terms like F1, F2, F3, F4 and F5. These generation labels matter enormously: they affect a cat's size, temperament, price and — crucially in the UK — whether it can be kept as an ordinary pet or requires a licence. Getting this right is not optional, because early-generation Savannahs are controlled under wild-animal law. Here is a clear, honest explanation, with a strong steer to verify the details with your own local council.

What the F-number actually means

The Savannah is a cross between a domestic cat and the African serval, a medium-sized wild cat. The "F" stands for filial generation, and the number tells you how many generations a cat is removed from that serval ancestor:

• F1 — has a serval parent (one parent is a pure serval). Closest to the wild cat.
• F2 — has a serval grandparent.
• F3 — has a serval great-grandparent.
• F4 — a further generation removed again.
• F5 — and so on, increasingly domestic.

The lower the number, the closer the cat is to the serval — generally larger, more athletic and more demanding. As the generations progress, cats become more domestic in size, behaviour and appearance, though many keep the breed's striking spotted coat and tall, leggy look.

How generation affects size and temperament

Early-generation cats (F1, F2) tend to be the biggest and most wild-influenced: tall, powerful, intensely active and needing specialist understanding and housing. They are not suited to inexperienced owners. By the time you reach F4 and F5, Savannahs are much closer to a large, lively domestic cat — still energetic, intelligent and striking, but far more manageable as household pets. This is why the later generations are the ones most people keep, and the ones usually recommended for family homes. We cover the size differences in detail in our size by generation guide.

UK law: the Dangerous Wild Animals Act 1976

This is the part you absolutely must understand before buying. In the UK, certain hybrid cats are controlled under the Dangerous Wild Animals Act 1976 (DWAA), which is administered by local councils. In practice:

• F1 Savannahs — and, depending on their serval ancestry, often F2 — generally require a DWAA licence from your local council. A licence comes with conditions covering how the animal is housed, secured and cared for, plus inspections and fees.
• Later generations (typically F4, F5 and beyond) are usually kept as normal pets without a licence.
• F3 can sit in a grey area depending on the cat's specific ancestry and how the law is interpreted locally.

Crucially, the exact generation cut-off and how the law is enforced can vary between councils, and interpretations change over time. That means the only reliable way to know where a particular cat stands is to contact your own local council directly and ask, and to confirm the precise generation (and the parentage behind it) with the breeder in writing. Never simply assume a kitten is licence-free.

Why this matters so much

Keeping a licensable animal without the required DWAA licence is a legal offence and a welfare risk. Early-generation Savannahs are large, powerful, high-drive cats that need appropriate, secure housing — this is not a trivial undertaking. Taking one on without understanding the legal position can lead to enforcement action and, worse, a cat whose needs cannot be properly met. This is why we urge prospective owners to do the legal homework first, and why, for the vast majority of homes, a later-generation cat is the sensible and responsible choice. Our honest pets guide explains the broader commitment.

Microchipping and the law for all cats

Whatever generation you choose, remember that microchipping is now a legal requirement for pet cats in England, with cats needing to be chipped and the details kept up to date. This applies to Savannahs like any other cat, and it is sensible practice across the UK. Keep your contact details current with the microchip database so your cat can always be traced back to you.

Buying responsibly

When approaching a breeder, ask clearly:

• Exactly which generation the kitten is, and the serval ancestry behind it.
• Whether that generation requires a DWAA licence in your area — and check this yourself with your council.
• What health testing the parents have had (see our care and health guide).
• To meet the kitten with its mother and see how they are reared.

A responsible breeder will be transparent about generation and law and will want to know the cat is going to a suitable home.

The bottom line

Generation is everything with Savannahs. F1 and F2 cats are wild-influenced and usually need a Dangerous Wild Animals Act licence; F4 and F5 cats are far more domestic and generally kept as ordinary pets. Because the cut-off and enforcement vary, always confirm the generation with the breeder and the legal position with your local council before you commit.

*This is general guidance, not legal advice. The Dangerous Wild Animals Act 1976 is enforced locally and interpretations can vary — always confirm your specific situation with your local council.*

Sources

• GOV.UK — Dangerous Wild Animals Act 1976 and the list of animals covered (gov.uk).
• GOV.UK — cat microchipping rules in England (gov.uk).
• International Cat Care — hybrid cats and welfare (icatcare.org).
• Governing Council of the Cat Fancy (GCCF) — breed policy and cat welfare (gccfcats.org).
• Blue Cross — responsible cat ownership (bluecross.org.uk).