17th birthday decorations
Worth a lookShows low returns (0.6%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.6%return rate — above 5% kills the launch gate
Brand share
Incredible36%top-5 brand share — no brand owns this niche
Competition
Great26%top-5 click share — an open shelf
Review moat
Great212.16avg incumbent reviews — the moat a new listing must climb
Conversion
Great7.8%search→purchase rate — share of searches ending in a sale
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Avg price
Bad£7.86avg listing price — sweet spot $15–$100
Market size
Bad£84K£84K/yr · 137K searches
Growth
Bad-8.0%90-day search growth — must beat 0% to launch
Price range
Bad£2.93–£15.71cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, 17th birthday decorations is a £84K/yr Amazon United Kingdom market (137K searches/yr). The top 5 brands hold 36% of demand. Verdict: Worth a look — 58/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
17th birthday decorations market data
- Units sold / yr
- 10K–13K
- avg 100–250/product
- Revenue / yr
- £79K–£98K
- units × avg price
- Conversion rate
- 7.8%
- Avg BSR
- #765
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 92%
- Out of stock
- 6.7%
- Avg brand age
- 23 months
- Avg seller age
- 170 days
Competition & brand share
Clicks spread well past the top 5 (26% combined) — an open shelf where new products get seen.Brands
41 falling
Sellers
74
Top-5 brand share
36%
Top 20: 83%
Top-5 click share
26%
Top 20: 64%
Open market
60%
- OakTree10%
- Sroeeshee9%
- SEWIRUY7%
- DJLLA5%
- Luvart5%
- Hierein5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -8.0% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.8×
Top 17th birthday decorations search terms
- 17th birthday decorations81K/yr
- 17 birthday decorations21K/yr
- 17th birthday banner13K/yr
- happy 17th birthday banner7K/yr
- 17th birthday decorations boy6K/yr
- 17th birthday decorations girl5K/yr
- 17 birthday banner5K/yr
Top 17th birthday decorations products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
9ft Banner Happy 17th Birthday Blue Holographic
OakTree£2.934.6★697 rev
Learner Driver 17th Birthday Decoration - 31 Pcs Learner Driver Banner Garland Hanging Swirls Age 17 Decor Dvla Driving Traffic Signal Road Signs Supplies for 17 Years Old Birthday Party
Sroeeshee£7.795.0★4 rev
17th Birthday Decorations Girls Gold White Birthday Balloons Happy 17th Banner with Confetti Latex Balloons Cake Topper for Girls Party Deco
DJLLA£8.084.3★1,033 rev
Hierein 17th Birthday Decorations Blue Silver Birthday Balloons for Boy
Hierein£7.794.2★162 rev
Happivue 17th Birthday Decorations Sweet Balloons Party Decoration for 17th Girls Pink Balloon With Happy 17 Birthday Banner Cake Toppers and Triangle Flags 17 Rose Gold Party Decoration for Her
Happivue£8.344.4★73 rev
Newest
by launch date
Luvart 17th Learner Driver Birthday Decorations - 29 Pcs Happy 17th Birthday Learner Driver Banner with Car Road Signs Hanging Swirls Door Cover Balloons Party Decoration for Boys 17 Years Old
Luvart£11.744 rev
40 Inch Dusty Pink 17 Number Balloon for Girls 17th Birthday Decorations Blush Light Pink Gold Beige Latex Balloons Bow Heart Foil Balloon for Boho 17 Year Old Birthday Anniversary Party Decorations
Jobkoo£13.12237 rev
17th Birthday Decorations Girls Gold White Birthday Balloons Happy 17th Banner with Confetti Latex Balloons Cake Topper for Girls Party Deco
DJLLA£8.081,033 rev
Learner Driver 17th Birthday Decoration - 31 Pcs Learner Driver Banner Garland Hanging Swirls Age 17 Decor Dvla Driving Traffic Signal Road Signs Supplies for 17 Years Old Birthday Party
Sroeeshee£7.794 rev
17th Learner Driver Birthday Decorations - 30 Pcs Happy 17th Birthday Learner Driver Backdrop Banner Balloons Car Road Signs Hanging Swirls Party Decoration for Boys 17 Years Old
Eiapadeor£12.216 rev
Trending
90-day click momentumLuvart 17th Learner Driver Birthday Decorations - 29 Pcs Happy 17th Birthday Learner Driver Banner with Car Road Signs Hanging Swirls Door Cover Balloons Party Decoration for Boys 17 Years Old
Luvart£11.744.1★
40 Inch Dusty Pink 17 Number Balloon for Girls 17th Birthday Decorations Blush Light Pink Gold Beige Latex Balloons Bow Heart Foil Balloon for Boho 17 Year Old Birthday Anniversary Party Decorations
Jobkoo£13.123.8★
17th Birthday Decorations Girls Gold White Birthday Balloons Happy 17th Banner with Confetti Latex Balloons Cake Topper for Girls Party Deco
DJLLA£8.084.3★
Learner Driver Gifts 17th Birthday - 46 Pcs Learner Driving Banner Hanging Swirls and Backdrop 17th Driver License Car Road Signs Theme Party Supplies for 17 Year Old Birthday Decorations
SEWIRUY£11.793.7★
Learner Driver Gifts 17th Birthday - 49 Pcs Learner Driving Banner Hanging Swirls and Balloons 17th Driver License Car Road Signs Theme Party Supplies for 17 Year Old Birthday Decorations
SEWIRUY£11.993.4★
What buyers say about 17th birthday decorations
What buyers praise and complain about, mined from review topics.What buyers love
“Great Quality & Easy Setup”
“All you need”
“Great value”
“Super decoration”
“Lovely design and shade, complimented cake very well”
“decent size”
“these inflate well and hold their shape, we just used air”
“made the setup look impressive”
“The black and silver theme works really well – its got that slightly more grown-up look compared to brighter kids party colours, so it suits a 17th pretty nicely”
“found it a simple way to create a coordinated look without too much effort”
What buyers complain about
“The balloons were terrible quality”
“Balloons are very small”
“Faff to put together”
“none of the balloons are pumping up”
“Busted before use”
“Some of the flash cards had spelling errors”
“Not as pictured”
“Colours are very dull”
“Slightly overpriced I would say”
Top return reasons
Common questions
- Is 17th birthday decorations profitable to sell on Amazon United Kingdom?
- The niche generates £84K/yr across 83 tracked products. 0 of 44 products launched in the last 360 days are still selling. 90-day search growth is -8.0%. Flapen's verdict: Worth a look (58/100).
- How competitive is the 17th birthday decorations niche?
- 41 brands and 74 sellers compete. The top 5 products take 26% of clicks and top 5 brands hold 36% of demand.
- What do buyers complain about in 17th birthday decorations?
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Assembly/Installation. The return rate is 0.6%.
- When does demand for 17th birthday decorations peak?
- Demand is steady year-round — the busiest month runs 1.8× the quietest.
- What does it cost to enter the 17th birthday decorations niche?
- Listings span £2.93–£15.71; the average listing price is £7.86 (sweet spot $15–$100). The average incumbent carries 212 reviews — the moat a new listing must climb.