Lattice One
Overview & Key Facts
Lattice One is a boutique 48-unit freehold condominium at 1 Seraya Crescent in District 20 — one of Singapore’s quietest and most greenery-rich residential corridors along the Upper Thomson Road belt. Developed by TEE Land Limited (now Amcorp Global Limited) and completed in 2021, the project takes its name from the lattice-patterned architectural screens woven into its facade — a design motif by AGA Architects that gives the two five-storey blocks a layered visual texture unusual for the OCR market. The result is a development that reads as a considered architectural object rather than a commodity residential block.
TEE Land positioned Lattice One as an intimate freehold alternative within a corridor historically dominated by large 99-year leasehold estates such as AMO Residence and Jadescape. With only 48 units spread across two low-rise blocks, the development was 100% sold out at launch — testament to the scarcity premium that genuine freehold boutique product commands in D20, a district more accustomed to mega-developments on Housing Board-constrained leasehold land. At a current median transaction price of S$1,681,020 — substantially below the S$2M psychological threshold — Lattice One remains one of the few freehold entry points in Thomson-Ang Mo Kio that serious mid-market buyers can still access.
The PSF trajectory since TOP tells a compelling appreciation story. Prices have moved from approximately S$1,841 PSF at launch to S$2,144 PSF in the most recent recorded period — a gain of roughly 16% in under four years on a freehold 2021 vintage. Against comparable 99-year leasehold neighbours trading at S$2,098–S$2,132 PSF, the freehold Lattice One is now within punching distance of leasehold pricing while retaining perpetual tenure — a structural advantage that compounds with every passing year as those 99-year leases tick down.
For buyers who value tranquility, greenery, and tenure permanence over urban convenience, Lattice One represents a rare combination: a brand-new-feeling freehold asset in a low-density, nature-proximate neighbourhood, with the Thomson-East Coast Line delivering meaningful connectivity to the city without requiring residents to sacrifice the quiet residential character that makes Seraya Crescent an address worth choosing.
Location & Connectivity
Seraya Crescent sits within the Upper Thomson corridor — widely regarded as Singapore’s greenest and least densely populated mature estate. The street is flanked by the Central Catchment Nature Reserve to the west, with Lower Peirce Reservoir Park directly accessible and MacRitchie Reservoir within close reach. This is not manufactured greenery in the form of rooftop gardens or landscaped podiums; it is Singapore’s largest contiguous nature reserve on the doorstep. Residents describe the early morning soundscape — birds, rustling leaves, the absence of construction noise — as the defining character of life on Seraya Crescent.
The Thomson-East Coast Line has materially changed the connectivity calculus for this neighbourhood. Mayflower MRT (TE8, TEL) sits approximately 1.05km from Lattice One, and Bright Hill MRT (TE7, TEL) at approximately 1.17km — both reachable in around 13 to 15 minutes on foot, or under five minutes by car or bus. The TEL is Singapore’s newest MRT line and one of its most strategically routed: from Mayflower, residents can reach Stevens interchange (TEL/DTL) in two stops, Orchard in four stops, and Marina Bay in approximately 25 minutes without a change. The line effectively re-rates the Upper Thomson corridor for commuters who previously faced inconvenient bus-only connectivity to the city centre.
For families, the school proximity in the immediate 1–1.5km radius is strong. Jing Shan Primary School is 0.88km, making Phase 2A P1 priority registration achievable. Peirce Secondary is 0.90km and Mayflower Primary 0.99km — a full primary-to-secondary school pathway within 1km. Singapore American School at 1.21km adds a meaningful expat family draw; its proximity is a significant factor for multinational corporate tenants and expatriate owner-occupiers who make up a meaningful portion of demand in this sub-market.
Upper Thomson Road itself provides adequate daily conveniences — a hawker centre, coffee shops, and independent cafes that give the street a village-like character beloved by long-term residents. Thomson Plaza mall is a short drive away with a Cold Storage supermarket, FairPrice Finest, and a range of F&B options. The trade-off is that this neighbourhood rewards car-owners and those willing to use the TEL; on-foot errand-running within 200m of Seraya Crescent is limited.
Schools & Education
2 primary schools within the 1 km Priority Phase balloting radius.
| School | Type | Distance |
|---|---|---|
| Jing Shan Primary School | primary | Within 1 km |
| Peirce Secondary School | secondary | Within 1 km |
| Mayflower Primary School | primary | Within 1 km |
| Singapore American School | international | ~1.2 km |
| Ang Mo Kio Secondary School | secondary | ~1.3 km |
| Ang Mo Kio Primary School | primary | ~1.3 km |
| Yio Chu Kang Primary School | primary | ~1.7 km |
| Yio Chu Kang Secondary School | secondary | ~1.7 km |
Facilities
At 48 units across two five-storey blocks, Lattice One is candidly a boutique development — and its facilities are sized accordingly. The ground level hosts a 25m lap pool, wading pool, pool deck with seating alcoves, gymnasium, function pavilion, and BBQ area. Where Lattice One distinguishes itself from older boutique stock is the rooftop programme on the fifth floor: a Sky Lounge, Yoga Deck, Scent Garden, Fitness Station, Sky Dining area, and Gathering Yard. This elevated amenity layer — unusual for a 48-unit freehold boutique — reflects the 2021 vintage specification and TEE Land’s effort to compensate for the development’s intimate scale with a rooftop lifestyle offering that enjoys open views across the Thomson green belt and nature reserve tree canopy.
The honest caveat is that Lattice One is not a resort-amenity development. There is no tennis court, no indoor gym with cardio theatre, no sauna or jacuzzi, no clubhouse with function rooms for 100 guests. Buyers drawn to the Jadescape or AMO Residence scale of facilities will find Lattice One modest by comparison. What the development offers instead is exclusivity of use: 48 households sharing a lap pool means it is effectively a private pool. The gym is never crowded. The rooftop yoga deck at dawn, overlooking reservoir greenery, is unlikely to be occupied by anyone else. For residents who value quality of experience over quantity of amenities, the 48-unit format delivers a lifestyle that larger developments with the same facilities but 20× the residents cannot replicate.
“The rooftop at Lattice One is genuinely one of the most peaceful spots I have found in Singapore. Yoga at sunrise with views over the reservoir tree line, and you almost never share it with anyone. No mega-development can offer that, no matter how many wellness facilities they build.”
— Owner-occupier, resident since 2022
Unit Sizes & Layout
Lattice One’s 48 units span two-bedroom to four-bedroom configurations across a size range of 538 sqft to 1,184 sqft — a compact but practical range calibrated to the OCR owner-occupier and small-family buyer. The 2021 TOP specification means units are delivered to a contemporary standard: smart home pre-wiring, quality kitchen fittings, and bathrooms finished to a specification level that contrasts favourably with resale boutiques of a similar size and price point. The lattice-screen exterior design by AGA Architects creates distinctive facade articulation that gives individual units visual privacy and partial shading — a practical benefit in Singapore’s climate that is easy to overlook when evaluating on PSF alone.
The freehold tenure is the structural unit investment argument. A 2-bedroom at approximately 538–635 sqft transacts at roughly S$1.0M–S$1.2M at current PSF; a 3-bedroom at 872–969 sqft at approximately S$1.6M–S$2.0M; a 4-bedroom at 1,184 sqft at approximately S$2.1M–S$2.4M. Against leasehold peers like AMO Residence (99yr, S$2,132 PSF) and Jadescape (99yr, S$2,098 PSF), the freehold Lattice One at its current PSF trajectory is approaching parity — while offering permanent land ownership rather than a diminishing lease. For long-horizon buyers, the compounding value of freehold tenure in a low-density, nature-proximate OCR location with improving TEL connectivity is the central unit investment thesis.
| Bedrooms | Transactions | Avg PSF | Avg Price |
|---|---|---|---|
| 2 BR | 14 | $1,914 | $1,641,894 |
| 3 BR | 5 | $1,810 | $1,854,000 |
Pricing & Market Position
Based on 19 recorded transactions, sale prices range from $1,515,000 to $2,038,000, averaging $1,697,712.
Rents range from $3,200 to $4,400 per month across 26 rental transactions. Current rental yield sits at approximately 2.6%.
Price Appreciation
From 2021 to 2025, the average PSF has appreciated by 16.5% (from $1,841 to $2,144 psf).
Neighbourhood Comparison
The freehold-versus-leasehold comparison in the immediate D20 sub-market is Lattice One’s strongest editorial argument. AMO Residence (99-year lease, 372 units, TOP 2021, S$2,132 PSF) and Jadescape (99-year lease, 1,206 units, TOP 2018, S$2,098 PSF) are both currently trading at S$300–S$450 PSF above Lattice One. Both are leasehold. Both are large-scale developments. The conventional real estate wisdom is that new freehold product commands a premium over 99-year leasehold — yet here the market has priced Lattice One at a meaningful discount, largely attributable to its boutique scale, lower transactional liquidity, and OCR location stigma relative to the larger developments. For buyers who understand tenure math, this is a potential mispricing: in 20–30 years, the 99-year AMO Residence and Jadescape will have consumed a third of their leases; Lattice One’s freehold title will be unchanged.
Against other freehold comparables in the vicinity, Sembawang Hills Estate (freehold, 34 units, S$1,932 PSF) is the most direct boutique peer — older vintage but similarly small-scale. The Panorama (99-year, 698 units, TOP 2013, S$1,824 PSF) and Sky Vue (99-year, 694 units, S$1,967 PSF) complete the leasehold competitive set at lower PSF but on diminishing tenure. Lattice One’s PSF has already surpassed The Panorama and is closing the gap on Sky Vue, while retaining the freehold structural advantage over all four leasehold comparables. As the PSF gap between Lattice One and AMO Residence narrows further, the case for freehold at a slight premium over its leasehold neighbours will only strengthen.
| Development | Tenure | TOP | Units | ~Avg PSF |
|---|---|---|---|---|
| LATTICE ONE | Freehold | 2021 | 48 | — |
| AMO RESIDENCE | 99 yrs lease commencing from 2021 | 2022 | 372 | $2,139 |
| JADESCAPE | 99 yrs lease commencing from 2018 | 2021 | 1,206 | $2,101 |
| THE PANORAMA | 99 yrs lease commencing from 2013 | 2019 | 698 | $1,835 |
| SKY VUE | 99-year leasehold | 2016 | 694 | $1,970 |
| SEMBAWANG HILLS ESTATE | Freehold | 2023 | 34 | $1,941 |
ShiokNest Scores
Our proprietary scoring system evaluates LATTICE ONE across multiple dimensions.
What Residents Say
“We chose Lattice One specifically because it is freehold and because of the reservoir greenery. Every morning I run along the Lower Peirce trail. You cannot put a PSF number on that. Our children play in a neighbourhood that still feels like the Singapore of 30 years ago — quiet, green, and safe.”
— Owner-occupier family, resident since 2022
“Be prepared for the car dependency. If you do not drive, the TEL is your lifeline and you will be bussing to Mayflower station most days. It is not a hardship, but buyers expecting to walk to the MRT in five minutes will be disappointed. Once you accept that, the lifestyle here is exceptional — I would not trade the quiet for a walkable D11 address.”
— Long-term resident and landlord, Seraya Crescent
“We are expats with children at Singapore American School — the 1.2km distance is perfect. The school bus picks up from Seraya Crescent and the SAS campus culture means many of our neighbours are also expat families. It has created an unexpectedly tight-knit international community in what is otherwise a very quiet, local Singapore neighbourhood.”
— Expat tenant family, renting at Lattice One
Strengths & Weaknesses
- Freehold tenure in D20 — permanent land ownership vs 99-year leasehold dominant in this corridor
- PSF appreciation +16% in 4 years post-TOP (S$1,841 to S$2,144) — strong early trajectory
- Median price S$1,681,020 — sub-S$1.7M freehold entry with upside as PSF closes gap to leasehold peers
- Thomson-East Coast Line: Mayflower MRT 1.05km, Bright Hill MRT 1.17km — full city access via TEL
- Lower Peirce Reservoir Park and Central Catchment Nature Reserve on the doorstep — premium green living
- Singapore American School 1.21km — expat tenant demand anchor and school bus pick-up available
- Jing Shan Primary 0.88km — Phase 2A P1 priority balloting within 1km
- Boutique 48 units — pool, gym, and rooftop never crowded; exclusive-use feel
- Rooftop fifth-floor Sky Lounge, Yoga Deck, Scent Garden, Sky Dining — rare OCR boutique offering
- 2021 vintage specification — smart home pre-wiring, contemporary kitchen and bathroom finishes
- Profitability 63/100 — solid for OCR freehold in only its fourth year post-TOP
- Freehold discount to 99yr neighbours: S$300–S$450 PSF cheaper than AMO Residence and Jadescape
- Walkability 43/100 — car-recommended address; TEL stations at 1.05–1.17km require bus feeder or driving
- Boutique scale means limited transactional liquidity — lower resale frequency than mega-developments
- Gross yield 2.5% — modest; 25 total rentals signal owner-occupier community, not rental investment play
- No PSF benchmark for recent 12 months — insufficient recent data means current market pricing harder to verify
- Small rental pool of 25 recorded rentals — limited rental liquidity for income-focused investors
- Facilities modest by mega-development standards — no tennis court, jacuzzi, or large clubhouse
- ShiokNest 41/100 and en-bloc 34/100 — boutique size limits collective sale attractiveness vs larger sites
- TEE Land (now Amcorp Global) is not a marquee developer brand; design is functional rather than luxury iconic
- Upper Thomson amenities are village-scale — supermarkets and full retail require a short drive or TEL journey
Verdict
Lattice One’s investment case rests on four pillars that compound over time. First, freehold tenure in an OCR district where leasehold dominates — the discount to 99-year neighbours has already compressed from roughly S$400 PSF at launch to under S$200 PSF today as the PSF trend surges 16% post-TOP. Second, Thomson-East Coast Line connectivity that is still being priced in: the TEL opened Mayflower station in 2021 and the full line to the east coast only became operational in 2024, meaning the full re-rating effect of TEL connectivity is not yet reflected in prices. Third, a profitability score of 63/100 that, while not exceptional, is solid for an OCR freehold in only its fourth year post-TOP. Fourth, Singapore American School proximity at 1.21km providing an expat rental demand anchor that most OCR developments lack.
The trade-offs are structural and honest. Walkability at 43/100 is below average — this is a car-recommended address. The TEL stations at 1.05–1.17km are not walkable for everyday commuters in Singapore’s climate without a significant tolerance for heat and humidity, and the bus feeder service is the practical daily transport solution for non-drivers. Gross yield at 2.5% is modest: 25 rental transactions across 48 units signals a predominantly owner-occupier community, which is excellent for building quality and community stability but limits rental liquidity for income-focused buyers. The development is boutique by any measure — prospective buyers expecting resort-scale facilities, a large swimming pool complex, or a full clubhouse should look at AMO Residence or Jadescape.
The buyer this development is built for is clear: someone who prizes tranquility, tenure permanence, greenery, and a genuine neighbourhood character over urban convenience and scale; someone with a car, or the willingness to use the TEL as a primary commuting tool; someone with a long investment horizon who understands that freehold OCR land in the Thomson green belt, adjacent to Singapore’s largest nature reserve, is a structurally scarce asset. For that buyer, Lattice One at a median below S$1.7M is an unusually compelling proposition in the 2026 D20 resale market.