Alkaff Vista
District 13 · 350 homes · 99-year leasehold (HDB) · HDB · completed 2019 · MOP from 2024
Artist's impression, HDB
All 25 stacks of Alkaff Vista (105A, 105B, 106A and 106B Bidadari Park Drive) in 3D on the real map, beside the buildings around them at their real heights. Pick a stack and a storey to see its facing, its view and its hours of sun. All four blocks were completed in 2019 (HDB), so the five-year minimum occupation period (MOP) ended from 2024, counted from each owner’s key collection. Homes have been sold on the resale market since August 2024.
Coolest stacksEvery stack ranked by direct sun after 2pm, least first.OpenHide
Working out every stack…
How to read the map and the colours
Every home is drawn floor by floor, coloured by unit type, in the same colours as the developer’s storey plans. Tap a stack or its number to pick it. Drag to move the map; hold Ctrl or Command and drag (or right-drag) to turn and tilt it. On a phone, one finger moves it and two fingers pinch, twist and tilt it. Zoom in to see every stack number. Navy: your stack. Orange: your storey. Dashed gold line: the view straight out of the window. Dark patches: shadows of the taller buildings at 15:00 on 18/10.
- 4-room, 94 sqm
- 5-room, 113 or 114 sqm
Alkaff Vista in brief
- Least afternoon sun
- Stacks #46, #50, #52, #66, #68: under an hour of direct sun after 2pm in every month.
- Clear view
- Stacks #52, #58: no building as tall as the window within 400 m.
- Blocked view
- Stacks #20, #22, #24, #26, #28, #32 and 8 more: face Block 105B, Blk 104 Potong Pasir Avenue 1, Block 105A and 4 more, as tall as the stack or taller.
Read at the middle storey of each stack. The tool above shows any storey.
Every stack at a glance
Show the table of all 25 stacksHide the table
Computed for the middle storey of each tower (storey 9 in the 17-storey blocks), or the middle of its own storeys for a stack that does not have that storey. Sun columns are hours of direct sun on the window on 21 June and 21 December after shading by other buildings; “Afternoon sun” lists the months with an hour or more after 2pm. Open the tool for any other storey or date.
Block 105A · 17 storeys · 5 stacks
| Stack | Type | Faces | Looks onto | Buildings straight ahead | 21 Jun | 21 Dec | Afternoon sun |
|---|---|---|---|---|---|---|---|
| #34 | 5-room, 113 sqm | N 350° | Bidadari Park Drive, 52 m | 8 Woodleigh Close, 241 m (seen over from storey 17); behind it Low-rise building, 287 m (at least as tall as this stack) | 10.8h | 0h | Mar–Oct |
| #36 | 5-room, 113 sqm | N 350° | Bidadari Park Drive, 46 m | Low-rise building, 283 m (at least as tall as this stack) | 10.8h | 0h | Mar–Sep |
| #38 | 4-room, 94 sqm | S 170° | The grounds | Masjid Alkaff Upper Serangoon, 99 m (seen over from storey 5) | 0h | 7.5h | Oct–Feb |
| #40 | 4-room, 94 sqm | S 170° | Block 105B across the grounds, 28 m | Blk 105 Bidadari Park Drive, 9 m (seen over from storey 3); behind it Block 105B, 28 m (at least as tall as this stack) | 0h | 7.0h | Oct–Feb |
| #42 | 5-room, 114 sqm | WNW 291° | Upper Serangoon Road, 34 m | Blk 103 Potong Pasir Avenue 1, 75 m (seen over from storey 5); behind it Blk 104 Potong Pasir Avenue 1, 118 m (at least as tall as this stack) | 5.5h | 4.6h | All year |
Block 105B · 17 storeys · 7 stacks
| Stack | Type | Faces | Looks onto | Buildings straight ahead | 21 Jun | 21 Dec | Afternoon sun |
|---|---|---|---|---|---|---|---|
| #44 | 5-room, 114 sqm | WNW 290° | Upper Serangoon Road, 35 m | Blk 103 Potong Pasir Avenue 1, 76 m (seen over from storey 5); behind it Blk 104 Potong Pasir Avenue 1, 128 m (at least as tall as this stack) | 5.4h | 4.7h | All year |
| #46 | 4-room, 94 sqm | NNE 23° | Block 105A across the grounds, 25 m | Blk 105 Bidadari Park Drive, 6 m (seen over from storey 4); behind it Block 105A, 25 m (at least as tall as this stack) | 6.7h | 0h | None |
| #48 | 4-room, 94 sqm | NNE 20° | Block 105A across the grounds, 33 m | Blk 106 Bidadari Park Drive, 32 m (seen over from storey 4); behind it Block 105A, 33 m (at least as tall as this stack) | 8.5h | 0h | May–Aug |
| #50 | 4-room, 94 sqm | SE 134° | Out of the estate: Blk 106 Bidadari Park Drive, 28 m | Blk 106 Bidadari Park Drive, 28 m (seen over from storey 5) | 2.3h | 7.7h | None |
| #52 | 4-room, 94 sqm | SE 134° | Out of the estate: Blk 106 Bidadari Park Drive, 17 m | Blk 106 Bidadari Park Drive, 17 m (seen over from storey 5) | 3.2h | 7.8h | None |
| #54 | 5-room, 113 sqm | SSW 200° | Pheng Geck Avenue, 26 m | 83 Pheng Geck Avenue, 108 m (seen over from storey 5); behind it 37 Pheng Geck Avenue, 184 m (at least as tall as this stack) | 0h | 8.6h | Aug–May |
| #56 | 5-room, 113 sqm | SSW 198° | Pheng Geck Avenue, 25 m | 85 Pheng Geck Avenue, 52 m (seen over from storey 5); behind it 37 Pheng Geck Avenue, 186 m (at least as tall as this stack) | 0h | 9.1h | Aug–Apr |
Block 106A · 17 storeys · 7 stacks
| Stack | Type | Faces | Looks onto | Buildings straight ahead | 21 Jun | 21 Dec | Afternoon sun |
|---|---|---|---|---|---|---|---|
| #20 | 5-room, 114 sqm | SSE 163° | Block 106B across the grounds, 32 m | Blk 106 Bidadari Park Drive, 17 m (seen over from storey 4); behind it Block 106B, 32 m (at least as tall as this stack) | 0h | 9.8h | Oct–Feb |
| #22 | 5-room, 113 sqm | NNW 341° | Bidadari Park Drive, 39 m | Blk 104A Bidadari Park Drive, 79 m (at least as tall as this stack) | 11.3h | 0h | Mar–Oct |
| #24 | 5-room, 113 sqm | NNW 341° | Bidadari Park Drive, 37 m | Blk 104A Bidadari Park Drive, 72 m (at least as tall as this stack) | 10.8h | 0h | Mar–Oct |
| #26 | 4-room, 94 sqm | NNW 342° | Bidadari Park Drive, 36 m | 103 Bidadari Park Drive, 96 m (seen over from storey 3); behind it Blk 104A Bidadari Park Drive, 115 m (at least as tall as this stack) | 10.2h | 0h | Feb–Oct |
| #28 | 4-room, 94 sqm | NNW 341° | Bidadari Park Drive, 35 m | Blk 103B Bidadari Park Drive, 63 m (seen over from storey 17); behind it Blk 104A Bidadari Park Drive, 106 m (at least as tall as this stack) | 9.7h | 0h | Feb–Oct |
| #30 | 4-room, 94 sqm | SSE 162° | Out of the estate: 20 Pang Seng Road, 100 m | 20 Pang Seng Road, 100 m (seen over from storey 2) | 0h | 9.5h | Nov–Feb |
| #32 | 4-room, 94 sqm | SSE 161° | Block 106B across the grounds, 25 m | Block 106B, 25 m (at least as tall as this stack) | 0h | 9.6h | Nov–Feb |
Block 106B · 17 storeys · 6 stacks
| Stack | Type | Faces | Looks onto | Buildings straight ahead | 21 Jun | 21 Dec | Afternoon sun |
|---|---|---|---|---|---|---|---|
| #58 | 4-room, 94 sqm | S 169° | Out of the estate: 27G Wan Tho Avenue, 68 m | 27G Wan Tho Avenue, 68 m (seen over from storey 2) | 0h | 12.0h | Oct–Feb |
| #60 | 4-room, 94 sqm | S 170° | Out of the estate: Wan Tho Lodge, 32 m | Wan Tho Lodge, 32 m (seen over from storey 5) | 0h | 12.0h | Oct–Feb |
| #62 | 4-room, 94 sqm | N 349° | Block 106A across the grounds, 41 m | Blk 106 Bidadari Park Drive, 16 m (seen over from storey 5); behind it Block 106A, 41 m (at least as tall as this stack) | 8.9h | 0h | Mar–Sep |
| #64 | 4-room, 94 sqm | N 349° | Block 106A across the grounds, 32 m | Blk 106 Bidadari Park Drive, 16 m (seen over from storey 5); behind it Block 106A, 32 m (at least as tall as this stack) | 9.5h | 0h | Mar–Sep |
| #66 | 5-room, 113 sqm | E 79° | Out of the estate: Blk 108A Bidadari Park Drive, 55 m | Blk 108A Bidadari Park Drive, 55 m (seen over from storey 17) | 4.6h | 5.2h | None |
| #68 | 5-room, 113 sqm | E 79° | Out of the estate: Blk 108B Bidadari Park Drive, 55 m | Blk 108B Bidadari Park Drive, 55 m (at least as tall as this stack) | 4.8h | 5.7h | None |
Price at launch
HDB’s selling prices before grants at the November 2015 BTO sales launch. Flats were priced by storey and facing, and buyers then deducted their grants. These are launch prices, not what the flats resell for today.
4-Room
$433,000 to $550,000
199 flats offered
5-Room
$544,000 to $625,000
151 flats offered
HDB priced it together with Alkaff CourtView and Alkaff LakeView, launched at the same time, so the ranges cover all of them; the flat counts are this estate's own. Source: HDB, November 2015 BTO sales launch release (archived copy).
Frequently asked questions
Which Alkaff Vista stacks avoid the afternoon sun?
5 stacks get under an hour of direct sun after 2pm, every month of the year.
- #46
- #50
- #52
- #66
- #68
Mid-height storey, after shading by neighbouring blocks. The tool above shows any storey.
Which Alkaff Vista stacks take the afternoon sun most of the year?
3 stacks get an hour or more of direct sun after 2pm in at least ten months.
- #42
- #44
- #54
Mid-height storey.
Which Alkaff Vista stacks have the most open view?
2 stacks have a clear view across the whole window.
- #52
- #58
Mid-height storey. Clear means all nine sight lines (±40° of the facing) pass no building as tall as the window within 400 m.
Which Alkaff Vista stacks look straight at another block?
These face a building at least as tall as themselves, so no storey looks over it.
Block 105B
- #40 · 28 m
Blk 104 Potong Pasir Avenue 1
- #42 · 118 m
- #44 · 128 m
Block 105A
- #46 · 25 m
- #48 · 33 m
Block 106B
- #20 · 32 m
- #32 · 25 m
Blk 104A Bidadari Park Drive
- #22 · 79 m
- #24 · 72 m
- #26 · 115 m
- #28 · 106 m
Block 106A
- #62 · 41 m
- #64 · 32 m
Blk 108B Bidadari Park Drive
- #68 · 55 m
Which Alkaff Vista stacks face a road?
Grouped by the road each stack looks onto.
Bidadari Park Drive
- #22
- #24
- #26
- #28
- #34
- #36
Upper Serangoon Road
- #42
- #44
Pheng Geck Avenue
- #54
- #56
Road within 80 m straight ahead, with no other tower of the project in between.
What did Alkaff Vista cost at launch?
At HDB's November 2015 BTO sales launch, before grants: 4-Room $433,000 to $550,000, 5-Room $544,000 to $625,000. These are HDB's own figures from its launch release; flats were priced by storey and facing, and buyers then deducted their grants. HDB priced it together with Alkaff CourtView and Alkaff LakeView, launched at the same time, so the ranges cover all of them; the flat counts are this estate's own. Resale prices today are different.
Can I see the Alkaff Vista floor plans?
Yes. Pick a stack and its floor plan shows beside the map, as the developer published it: 3 layouts, each with its size, the units it applies to and a key plan. Tap it to enlarge.
How this is worked out, and its limits
Stacks are traced from the developer’s site plan onto the map, and the sun and view are worked out against the buildings around them. Details are as at 2026-10-18 and can change.
Show the method and its limitsHide the method
Where the stacks are. Each stack’s outline is traced from the developer’s site plan and fitted to the land parcel on the map. Expect positions within a few metres and bearings within a few degrees. Unit types come from the developer’s storey plans and add up to the published unit mix, and the map uses those same colours; 0 of the 25 stacks are also named on the developer’s floor plans, and all of those match.
Facing. The facing is the side the living room is on, read from the developer’s floor plan for each of the 25 stacks. End and corner homes also have bedroom windows on a second side, which the tool does not model.
Heights. Towers use the developer’s storey counts at an assumed 3.05 m per storey. Buildings standing around the estate use the height in the Singapore Land Authority’s 3D model, read off OneMap 3D on 2 October 2026; where one outline covers a tower and its podium, it is cut into its parts. A building not yet in that model (still being built) uses its published storey count at 3.6 m a storey for a condo and 3.0 m for an HDB block, the averages measured for built ones. Every building is modelled as its footprint raised straight up, on level ground: no roofs, balconies, trees or slopes.
Sun. The same solar model as the Sun Path & Facing Calculator, checked to within about three minutes, with a building in the way counted as shade. The window is a point at mid-storey height on the middle of the outside wall. Balconies, overhangs and cloud cut real sun further, so read the hours as a ceiling.
Sun across the year and coolest stacks. The year grid tests the window every half hour on the 15th of each month. Coolest stacks ranks by the average of those twelve days in hours of direct sun after 2pm, least first, at the middle storey of each stack with shade from other buildings taken off; the hours for the whole day sit beside it. For a home at the end of its block the afternoon figure also counts the sun on its end wall.
Floor plans. The developer’s own pages, unaltered, matched to each stack by the layout code on the developer’s schematic diagram. A stack the plan lists as a mirror unit is the plan flipped. Floor plans: HDB's sales brochure for Alkaff Vista, layout pictures (open kitchen). HDB shows two 5-room ideas, 113 sqm and 114 sqm; stack 42 of Block 105A, stack 44 of Block 105B and stack 20 of Block 106A have the 114 sqm one. Furniture is HDB's suggestion. Typical: the home on a given stack may differ in detail or be its mirror image. Not to scale, areas approximate.
Not shown. Asking prices: a resale home is priced by its owner, and what is on the market changes by the week. Anything the developer did not publish is not shown either. Details are as at 2026-10-18 and can change. Sources: HDB's sales brochure (November 2015); data.gov.sg (HDB Property Information); OpenStreetMap.
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