The Cavalier King Charles Spaniel is a small companion breed known for its affectionate nature, gentle temperament, and adaptability. Originally bred as a lap dog for British nobility, the Cavalier is now one of the most popular family dogs in the UK. Friendly, sociable, and eager to please, this breed fits well into many households. However, it is important to note that Cavaliers have well-documented inherited health concerns, making responsible breeding and careful puppy selection essential. In the right home, the Cavalier is a loving and devoted companion.
The Cavalier King Charles Spaniel is a small, elegant dog with a soft expression and silky coat.
Key physical characteristics:
Compact, well-proportioned body
Long, silky coat with feathering
Large, dark, round eyes
Long, drop ears with feathering
Gentle, expressive face
Recognised coat colours include blenheim (chestnut and white), tricolour (black, white, and tan), ruby, black & tan.
Height:
30 - 33 cm
Weight:
5.4 - 8 kg
The Cavalier King Charles Spaniel is affectionate, gentle, and highly people-oriented. It thrives on companionship and enjoys being part of family life.
They are best described as:
Friendly and sociable
Calm but playful
Eager to please
Intelligence: High
Affection: Very high
Energy level: Moderate
Loyalty: Strong
Playfulness: Moderate
Aggression: Not aggressive
Trainability: High
Guarding ability: Low
This breed is known for its easy-going and adaptable nature.
Cavaliers are naturally sociable and typically easy to integrate into family life.
With other dogs: Very good
With children: Excellent
With cats and small pets: Usually very good
With strangers: Very friendly
They are one of the most naturally social companion breeds.
The Cavalier King Charles Spaniel is highly adaptable and suits a wide range of homes.
Best suited to:
Families, couples, or individuals
First-time dog owners
Homes where the dog is not left alone for long periods
First-time owners: Yes
Apartment living: Very suitable
Left alone: Poorly tolerated
Noise sensitivity: Low
Barking: Low
Drooling: Low
Heat tolerance: Moderate
Cold tolerance: Moderate
This breed thrives on companionship and does not do well in isolation.
Average lifespan: 10 - 14 years
The Cavalier King Charles Spaniel is associated with several significant inherited health conditions, making responsible breeding essential.
Mitral valve disease (MVD) – very common
Syringomyelia (SM) – a serious neurological condition
Hip dysplasia
Eye conditions (e.g. cataracts)
Ear infections
Ethical breeders carry out health screening and follow breeding guidelines to reduce risk.
Minimum requirement: 45 - 60 minutes daily
Ideal activities:
Walks
Play sessions
Light training
They enjoy activity but do not require intense exercise.
A balanced, small-breed diet is recommended.
Adults: 100 - 180 g per day
Puppies require structured feeding
Monitor weight and avoid overfeeding, as the breed can gain weight easily.
Moderate grooming needs:
Brush 2–3 times per week
Regular ear cleaning
Routine dental care
Shedding is moderate.
Cavaliers are highly people-focused and can develop separation anxiety if left alone frequently. They thrive in homes with regular interaction.
The Cavalier King Charles Spaniel descends from toy spaniels popular with British royalty, particularly King Charles II. The modern breed was developed in the early 20th century to recreate the longer-muzzled spaniels seen in historical paintings.
Today, it is one of the UK’s most popular companion breeds.
Named after King Charles II
One of the most popular UK companion breeds
Known for its gentle temperament
Often used as a therapy dog
You can read our general buying guide here, with the most important steps being visiting your Cavalier King Charles Spaniel puppy in person, seeing it with its mother, and assessing the breeder’s standards carefully.
More specifically, here is some Cavalier King Charles Spaniel puppy buying advice:
This breed has known hereditary health issues. Buyers should never prioritise appearance or price over health testing.
When buying:
Confirm heart testing (for mitral valve disease)
Confirm both parents have undergone heart screening
Ask about screening for syringomyelia
Ask about neurological health testing
Review breeder health records
Avoid breeders producing large volumes of puppies
Meet the mother and assess her condition
A well-bred Cavalier should be bright, active, and comfortable with handling. Responsible breeding is especially critical for this breed. Avoid breeders who cannot provide clear health documentation or who breed without regard to long-term health.
For further guidance:
The Kennel Club (UK): https://www.thekennelclub.org.uk
Dogs Trust: https://www.dogstrust.org.uk
Blue Cross: https://www.bluecross.org.uk
While this page focuses on responsibly buying a puppy, some owners may also explore recognised rehoming routes.
