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8 St Thomas: the two glass towers rising above the trees off River Valley Road
TRIBE · Resale Unit Selector

8 St Thomas

District 9 · 250 homes · Freehold · Resale · completed 2018

Artist's impression: Bukit Sembawang Estates Limited, 8 St Thomas brochure

All 9 stacks of 8 St Thomas (8 and 10 St Thomas Walk) 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. Recent sale prices, rent and its grade are on the 8 St Thomas resale scorecard.

Compare layouts
Stack #01 (storeys 2 to 4) · Block 8 · 2-Bedroom01Stack #02 (storeys 2 to 4) · Block 8 · 1-Bedroom02Stack #03 (storeys 2 to 4) · Block 8 · 1-Bedroom03Stack #04 (storeys 2 to 4) · Block 8 · 2-Bedroom04Stack #05 (storeys 3 to 12) · Block 10 · 1-Bedroom05Stack #05 (storeys 16 to 20) · Block 10 · 2-Bedroom05Stack #05 (storeys 24 to 28) · Block 10 · 2-Bedroom05Stack #05 (storeys 32 to 35) · Block 10 · 2-Bedroom05Stack #06 (storeys 3 to 12) · Block 10 · 1-Bedroom06Stack #06 (storeys 16 to 20) · Block 10 · 2-Bedroom06Stack #06 (storeys 24 to 28) · Block 10 · 2-Bedroom06Stack #06 (storeys 32 to 35) · Block 10 · 2-Bedroom06Stack #07 · Block 10 · 3-Bedroom07Stack #08 · Block 10 · 2-Bedroom08Stack #09 · Block 10 · 3-Bedroom09Blk 8Blk 10N20 m
1-bed2-bed3-bed4-bedYour stackArrow: main facade
3D map loading…
Coolest stacksEvery stack ranked by direct sun after 2pm, least first.Open

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 floor 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 19/10.

  • 1-Bedroom
  • 2-Bedroom
  • 3-Bedroom
  • 4-Bedroom
  • 4-Bedroom Dual Key
Block
Stack in Block 8

8 St Thomas in brief

Least afternoon sun
Stacks #06 (storeys 3 to 12), #06 (storeys 16 to 20), #06 (storeys 24 to 28), #06 (storeys 32 to 35), #07, #08: under an hour of direct sun after 2pm in every month.
Clear view
Stacks #03 (storey 34), #03 (storeys 28 to 33), #05 (storeys 32 to 35): no building as tall as the window within 400 m.
Blocked view
Stacks #01 (storeys 2 to 4), #01 (storeys 5 to 14), #04 (storeys 2 to 4), #04 (storeys 5 to 7), #05 (storeys 3 to 12), #05 (storeys 16 to 20) and 5 more: face 1 Jalan Kuala, Espada, 22 Saint Thomas Walk and 2 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 9 stacks

Computed for the middle storey of each tower (storey 18 in the 35-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 8 · 35 storeys · 4 stacks

StackTypeFacesLooks ontoBuildings straight ahead21 Jun21 DecAfternoon sun
#01 (storeys 2 to 4)2-BedroomSSW 195° · cornerOut of the estate: 1 Jalan Kuala, 72 m1 Jalan Kuala, 72 m (at least as tall as this stack)0h9.5hSep–Apr
#01 (storeys 5 to 14)3-BedroomSSW 195° · cornerOut of the estate: 1 Jalan Kuala, 72 m1 Jalan Kuala, 72 m (at least as tall as this stack)0h10.4hSep–Apr
#01 (storeys 15 to 27)2-BedroomSSW 195° · cornerOut of the estate: 1 Jalan Kuala, 72 m1 Jalan Kuala, 72 m (seen over from storey 25)0h11.3hAug–Apr
#01 (storeys 28 to 33)4-BedroomSSE 160° · cornerOut of the estate: 8 River Valley Close, 156 m8 River Valley Close, 156 m (at least as tall as this stack)0h12.0hNov–Feb
#01 (storey 34)4-BedroomSSE 160° · cornerOut of the estate: 8 River Valley Close, 156 m8 River Valley Close, 156 m (at least as tall as this stack)0h12.0hNov–Feb
#02 (storeys 2 to 4)1-BedroomSSE 160° · cornerOut of the estate: 8 River Valley Close, 152 m8 River Valley Close, 152 m (at least as tall as this stack)0h9.6hNov–Feb
#02 (storeys 5 to 14)1-BedroomSSE 160° · cornerOut of the estate: 8 River Valley Close, 152 m8 River Valley Close, 152 m (at least as tall as this stack)0h10.3hNov–Feb
#02 (storeys 15 to 27)2-BedroomSSE 160° · cornerOut of the estate: 8 River Valley Close, 152 m8 River Valley Close, 152 m (at least as tall as this stack)0h10.6hNov–Feb
#03 (storeys 2 to 4)1-BedroomSW 230° · cornerOut of the estate: 329 River Valley Road, 234 m329 River Valley Road, 234 m (at least as tall as this stack)0h6.8hOct–Mar
#03 (storeys 5 to 7)1-BedroomSW 230° · cornerOut of the estate: 329 River Valley Road, 234 m329 River Valley Road, 234 m (at least as tall as this stack)0h7.0hOct–Mar
#03 (storeys 8 to 27)4-Bedroom Dual KeySW 230° · cornerOut of the estate: 329 River Valley Road, 237 m329 River Valley Road, 237 m (seen over from storey 25)0h7.5hSep–Apr
#03 (storeys 28 to 33)4-BedroomSW 230° · cornerOut of the estate: 329 River Valley Road, 237 m329 River Valley Road, 237 m (seen over from storey 28)0h7.5hAug–Apr
#03 (storey 34)4-BedroomSW 230° · cornerOut of the estate: 329 River Valley Road, 237 m329 River Valley Road, 237 m (seen over from storey 34)2.9h7.5hAll year
#04 (storeys 2 to 4)2-BedroomNNE 15° · cornerOut of the estate: Espada, 124 mEspada, 124 m (at least as tall as this stack)6.8h0hApr–Aug
#04 (storeys 5 to 7)3-BedroomNNE 15° · cornerOut of the estate: Espada, 124 mEspada, 124 m (at least as tall as this stack)7.5h0hApr–Aug

Block 10 · 35 storeys · 5 stacks

StackTypeFacesLooks ontoBuildings straight ahead21 Jun21 DecAfternoon sun
#05 (storeys 3 to 12)1-BedroomN 350° · cornerOut of the estate: 22 Saint Thomas Walk, 26 m22 Saint Thomas Walk, 26 m (at least as tall as this stack)7.3h0hMar–Sep
#05 (storeys 16 to 20)2-BedroomN 350° · cornerOut of the estate: 22 Saint Thomas Walk, 26 m22 Saint Thomas Walk, 26 m (at least as tall as this stack)11.2h0hMar–Oct
#05 (storeys 24 to 28)2-BedroomN 350° · cornerOut of the estate: 22 Saint Thomas Walk, 26 m22 Saint Thomas Walk, 26 m (at least as tall as this stack)12.2h0hMar–Oct
#05 (storeys 32 to 35)2-BedroomN 350° · cornerOut of the estate: 22 Saint Thomas Walk, 26 m22 Saint Thomas Walk, 26 m (seen over from storey 32)12.2h0hMar–Oct
#06 (storeys 3 to 12)1-BedroomE 80° · cornerOut of the estate: 1 Devonshire Road, 110 m1 Devonshire Road, 110 m (at least as tall as this stack)6.0h0hNone
#06 (storeys 16 to 20)2-BedroomE 80° · cornerOut of the estate: 1 Devonshire Road, 110 m1 Devonshire Road, 110 m (at least as tall as this stack)6.3h0hNone
#06 (storeys 24 to 28)2-BedroomE 80° · cornerOut of the estate: 1 Devonshire Road, 110 m1 Devonshire Road, 110 m (at least as tall as this stack)6.3h0hNone
#06 (storeys 32 to 35)2-BedroomE 80° · cornerOut of the estate: 1 Devonshire Road, 110 m1 Devonshire Road, 110 m (seen over from storey 35)6.3h3.3hNone
#073-BedroomN 350° · cornerOut of the estate: 40 Saint Thomas Walk, 74 m40 Saint Thomas Walk, 74 m (seen over from storey 9)5.6h0hNone
#082-BedroomNNW 345° · cornerOut of the estate: 22 Saint Thomas Walk, 37 m22 Saint Thomas Walk, 37 m (seen over from storey 31)1.9h0hNone
#093-BedroomNNW 345° · cornerBlock 10 across the grounds, 3 mBlock 10, 3 m (at least as tall as this stack)3.8h0hFeb–Oct

Frequently asked questions

Which 8 St Thomas stacks avoid the afternoon sun?

3 stacks get under an hour of direct sun after 2pm, every month of the year.

  • #06
  • #07
  • #08

Mid-height storey, after shading by neighbouring blocks. The tool above shows any storey.

Which 8 St Thomas stacks take the afternoon sun most of the year?

1 stack gets an hour or more of direct sun after 2pm in at least ten months.

  • #03 (storey 34)

Mid-height storey.

Which 8 St Thomas stacks have the most open view?

2 stacks have a clear view across the whole window.

  • #03 (storey 34)
  • #03 (storeys 28 to 33)
  • #05 (storeys 32 to 35)

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 8 St Thomas stacks look straight at another block?

These face a building at least as tall as themselves, so no storey looks over it.

1 Jalan Kuala

  • #01 (storeys 2 to 4) · 72 m
  • #01 (storeys 5 to 14) · 72 m

Espada

  • #04 (storeys 2 to 4) · 124 m
  • #04 (storeys 5 to 7) · 124 m

22 Saint Thomas Walk

  • #05 (storeys 3 to 12) · 26 m
  • #05 (storeys 16 to 20) · 26 m
  • #05 (storeys 24 to 28) · 26 m

1 Devonshire Road

  • #06 (storeys 3 to 12) · 110 m
  • #06 (storeys 16 to 20) · 110 m
  • #06 (storeys 24 to 28) · 110 m

Block 10

  • #09 · 3 m
Which 8 St Thomas stacks face a pool?

None of the stacks has pool water across a quarter or more of its window.

Which 8 St Thomas stacks face a road?

None of the stacks has a bordering road within 80 m straight ahead.

Can I see the 8 St Thomas floor plans?

Yes. Pick a stack and its floor plan shows beside the map, as the developer published it: 19 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 2026-10-19 and can change.

Show the method and its limits

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 floor plans and add up to the published unit mix (apart from 2 penthouses on the 35th storey of Blk 8 (PH1 #35-01, PH2 #35-03; no plan or size in the brochure), not in a stack here), and the map uses those same colours; 9 of the 9 stacks are also named on the developer’s floor plans, and all of those match.

Facing. A mid-block stack faces away from the side of the block it sits on. End and corner stacks (marked “corner”) have windows on more than one side; 26 of them are not yet checked against the floor plan, so the tool uses the main facade.

What it looks onto. The pools, lawns, courts and pavilions are read off the developer’s site plan and placed on the map with the same fit as the stacks, so they are right to within a few metres. A stack “looks onto” a pool when at least a quarter of 17 sight lines across its window (40° either side of the facing) reach the water before another tower of the project. It “faces out of the estate” when the site boundary is within 50 m straight ahead. Facility names and positions are the developer’s and can change before completion.

Heights. Towers use the developer’s storey counts at an assumed 3.5 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: Bukit Sembawang Estates Limited, 8 St Thomas brochure. Developer's plans, not to scale and subject to change; areas are 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 2026-10-19 and can change. Sources: Developer's brochure (Bukit Sembawang Estates); OpenStreetMap.

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