Singapore's famous greenery isn't confined to Gardens by the Bay or the Botanic Gardens. Some of the island's most pleasant green spaces sit on top of multi-storey car parks and residential blocks in the heartlands — free to visit, usually empty, and often overlooked even by locals. A recent round-up highlighted 15 of these HDB rooftop gardens scattered across the island, from Tengah to Pioneer.

A few standouts for visitors. Kampung Admiralty in Woodlands is Singapore's first integrated public development designed for seniors, stacked with housing, healthcare and retail. Its rooftop community park features stepped terraces planted with over 80,000 shrubs and trees, an edible garden, rain gardens and an eco-pond that recycle enough rainwater to save roughly 4.1 million litres of tap water a year. SkyVille @ Dawson claims the loftiest spot — one of five sky gardens sits on the 47th storey, open daily 7am to 10pm, with views that reward the vertigo-tolerant.

In Punggol, two gardens make the most of the waterfront. Punggol Breeze has a 270m-long rooftop garden that's won multiple construction awards, with views over Punggol Reservoir and Pulau Punggol Timor — you actually walk through it to reach the Oasis LRT station. Nearby Punggol Bayview offers unobstructed views of the same waterway. Over at Kallang Trivista, a short walk from Kallang MRT, one end of the roof faces the Kallang River and the other the National Stadium against the skyline; otters sometimes appear by the river.

Others worth a detour: the family-friendly Sky Sports Park at Parc Clover @ Tengah, with a whimsical playground and 300m running track atop a car park; 54 Commonwealth in Queenstown, where pink crepe myrtle blooms make convincing fake-sakura photo backdrops; City Vue @ Henderson, whose 28th-floor sky bridges make it a prime National Day Parade fireworks spot and whose rooftop has a playground with a flying fox; and Toa Payoh's pair of gardens — Central Horizon's 12th-storey sky garden stretching across five blocks with views to Novena, and The Peak's community garden growing bitter gourd and papaya. Block 588 Ang Mo Kio offers a playground and seniors' fitness corner right in AMK Central, while 967 Pioneer pairs stone tables and chairs with kopitiam food from the neighbouring NTU haunt.

Most are easy to reach by public transport, and since they're residential spaces, etiquette matters: keep noise down, clean up after yourself, and remember these aren't tourist attractions so much as people's shared gardens. For travellers tired of Singapore's air-conditioned malls, they offer a genuinely local way to see how the "Garden City" label plays out in everyday life — plus skyline and reservoir views you won't get from the usual itinerary.