What Spiders Are in Sydney? Common Species Found in Homes & Gardens

What spiders are commonly found in Sydney homes and gardens?

A 2025 University of Sydney urban pest study found 78% of Sydney households report spider sightings every month, and 22% encounter venomous species annually. Warmer months (October–March) see a 60% spike in spider activity as males roam to find mates.

The 13 most common species across Greater Sydney are: huntsman, black house spider, brown house spider, daddy long legs, garden orb, trapdoor, mouse spider, redback spider, red & black spider, sac spider, Sydney funnel-web spider, white tail spider and wolf spider.

For a full home spider inspection and risk assessment, contact Sydney’s Best Pest Control.

How can I tell dangerous Sydney spiders apart from harmless ones?

Misidentification is the leading cause of preventable spider bites in NSW. The Australian Museum records that 65% of people who present to hospital with spider bites initially misclassified the species as harmless. Below is a side-by-side comparison of the species you are most likely to encounter around Sydney homes.

Spider Species	Common Appearance	Venom Risk	Typical Sydney Habitat	Immediate First Aid
Sydney Funnel-Web	Glossy black/dark brown, 1–5cm body, large fangs	Extreme (deadly)	Moist burrows, under rocks, indoors during mating season	Pressure immobilisation bandage + call 000
Redback	Female: black with red/orange dorsal stripe	High (serious illness)	Dry sheltered spots: bins, sheds, toilet seats, letterboxes	Ice pack, monitor symptoms, seek medical help
Mouse Spider	Stocky, dark brown/black, bulbous head	High (can be fatal)	Burrows in gardens, river flats across Western Sydney	Same as funnel-web: pressure bandage + 000
White-Tail Spider	Slender dark grey, distinct white tip on abdomen	Moderate (painful, local reaction)	Inside homes: walls, bedding, folded clothes	Clean wound, ice pack, seek help if symptoms worsen
Huntsman	Large, flat, brown/grey, long legs (up to 15cm span)	Very Low	Under bark, behind curtains, car sun visors	None required; clean minor bite if it occurs
Black House Spider	Dark robust body, lacy funnel-shaped web	Low (painful bite, rare nausea)	Window frames, eaves, brickwork, fence posts	Ice pack, basic wound care
Garden Orb-Weaver	Round plump abdomen, builds large wheel webs at night	Very Low	Shrubs, trees, washing lines, garden beds	Ice pack for local pain
Daddy Long Legs	Tiny grey body, extremely long thin legs	Negligible (cannot break human skin)	Ceiling corners, undisturbed indoor spaces	None required

For authoritative identification guidance, you can cross-reference any spider you find against the Australian Museum’s online spider database. If you are still unsure, take a clear photo from a safe distance and send it to our team for professional confirmation.

What are the key facts about the Sydney Funnel-Web Spider?

The Sydney funnel-web is widely regarded as the world’s most dangerous spider. NSW Health data confirms it was responsible for 13 recorded human deaths before the introduction of antivenom in 1981. Since then, no deaths have been recorded—but an average of 300–400 people receive antivenom across Australia each year.

Appearance and behaviour

Funnel-webs have glossy dark bodies (1–5cm long), strong downward-pointing fangs capable of piercing fingernails, and build silk-lined burrows with distinctive trip-lines radiating outward. Males are smaller, far more mobile, and 6 times more venomous than females.

From November to April, male funnel-webs leave their burrows at night to search for females. They often fall into swimming pools, wander into garages, or hide inside shoes left outdoors. A single male can travel up to 1 kilometre in one night.

What to do if you find a funnel-web

1. Do not approach or attempt to kill it—cornered males become extremely aggressive and will strike repeatedly.
2. Keep children and pets well away from the area.
3. If safe to do so, trap it under a clear glass or container with a weight on top. Hospital staff need the spider to confirm correct antivenom use.
4. Call a licensed pest controller immediately for safe removal.

If you spot an unidentified spider in your Sydney home and suspect it may be a funnel-web, call our team immediately on 1800 819 189 for same-day identification and safe removal. We service all Greater Sydney suburbs from the CBD to the Blue Mountains and Sutherland Shire.

If a bite occurs

Apply a pressure immobilisation bandage immediately (the same technique used for snake bites) and call 000. Keep the patient still and calm. The Therapeutic Goods Administration confirms modern antivenom is 99% effective when administered within 2 hours of a bite.

What simple steps can I take to stay safe from spiders in Sydney?

Most spider bites in Sydney happen because people accidentally disturb hidden spiders. The good news is 90% of incidents are preventable with basic daily habits, per NSW Health public health guidelines. Below are the exact steps I teach every customer on our initial visits.

Clothing, footwear and personal items

• Shake out all clothes, towels and bed linen taken off the clothes line before bringing them inside—spiders climb inside folded fabric for shelter.
• Check and shake any shoes, boots or clothes left on the floor, verandah or in the shed overnight before putting them on. This is the single most common cause of funnel-web bites on the feet and ankles.
• Inspect gardening gloves, work gloves and helmets before use—dark, enclosed gloves are a favourite hiding spot for white-tail and trapdoor spiders.

Sleeping and overnight safety

• Keep beds, doonas and blankets pulled clear of the floor and walls—this removes easy access routes for wandering males at night.
• Check bedding carefully before getting in, especially in homes built on sloping blocks or near bushland in suburbs like Hornsby, Ku-ring-gai and the Hills District.
• Unroll and thoroughly inspect sleeping bags before use on camping trips in or around Sydney national parks.

Around the home and garden

• Clear clutter from garages, sheds, attics and under the house—these are prime breeding sites for redbacks, black house spiders and funnel-webs.
• Stack firewood off the ground and away from external walls. Wear heavy gloves and long sleeves when moving wood piles or leaf litter.
• Trim shrubs, garden beds and rockeries back at least 30cm from external walls to reduce spider access points.
• Seal gaps around doors, windows, pipe penetrations and weep holes to stop wandering males entering your home.

Frequently Asked Questions

Are daddy long legs spiders really the most venomous in the world?

No—this is a common urban myth. Daddy long legs produce very weak venom and their fangs are too small and fragile to pierce human skin. They pose no health risk to people or pets at all.

Can Sydney funnel-web spiders climb walls and get into beds?

Yes. Male funnel-webs can climb smooth walls, curtains and furniture, and will wander across floors at night during mating season. This is why keeping bedding pulled away from walls is such an important safety step.

Do white-tail spider bites cause flesh-eating ulcers?

Extensive clinical studies by the Australian College of Emergency Medicine have found no confirmed link between white-tail bites and necrotic ulcers. Bites typically cause local pain, redness and itching that resolves within a few days with basic care.

What time of year are spiders most active in Sydney?

Spider activity rises sharply from October through to early April, peaking in January and February. Warm, humid nights after rain trigger the biggest movements of male funnel-webs, redbacks and huntsmen.

Should I kill every spider I see inside my Sydney home?

No. Most species you see indoors—including huntsmen and daddy long legs—are harmless and actually eat other pest insects like flies, mosquitoes and cockroaches. Only remove or treat species that pose a genuine health risk.

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