Thomson Reserve and The Sen are not next-door substitutes, but I expect some buyers to compare them because both appeal to people who like the Upper Thomson-Bukit Timah side of Singapore, greenery and a more residential environment than the city fringe.
The right answer is not which project is “better”. The more useful question is which trade-offs suit the buyer.
The first difference is scale
Thomson Reserve has 1,268 units across six towers on a roughly five-hectare site. The Sen is much smaller at 347 units across five low-rise blocks.
That difference changes the living experience. Thomson Reserve can support a much larger facilities programme, multiple pools, larger landscaped grounds and deeper transaction volume later. The Sen should feel more intimate and has far fewer neighbours.
Neither is automatically better. Some families like a large full-facility development. Others prefer a smaller project where the estate feels less busy.
MRT access is a much stronger point for Thomson Reserve
Thomson Reserve is directly linked by sheltered walkway to Upper Thomson MRT on the Thomson-East Coast Line. That is a straightforward daily-use advantage.
The Sen sits along Jalan Jurong Kechil in Upper Bukit Timah. Hume MRT is the nearer Downtown Line station, with Beauty World also serving the broader area. I would therefore not treat The Sen as a doorstep-MRT project.
If public transport convenience is one of your top three priorities, I would give Thomson Reserve a clear advantage. If you drive most of the time and value a lower-rise, lower-density environment more than station proximity, The Sen can still make sense.
The headline entry price can be misleading
Thomson Reserve starts from $1.544 million, but that entry unit is 592 sqft.
Current marketing inventory in early October 2026 shows 678 sqft two-bedroom units from about $1.546 million, although availability, discounts and prices can change. This figure should be re-checked within 24 hours of publication.
So a buyer looking only at the headline starting price might think the two projects cost roughly the same. They do not offer the same amount of space at that price point.
At the same time, Thomson Reserve has a much stronger MRT proposition and a much larger site. That is why comparing only psf or only total price gives an incomplete answer.
The buyer profile is different
I see Thomson Reserve attracting a wider range of buyers: families targeting Ai Tong, existing private homeowners in the Thomson-Bishan area, buyers wanting direct MRT access and larger families considering the private-lift layouts.
The Sen feels more niche. Its smaller scale, Upper Bukit Timah setting and lower entry quantum can appeal to buyers who want a lower-density environment and are willing to accept weaker rail convenience.
For an investor, I would ask where tenant demand is likely to come from rather than simply assuming a Bukit Timah address rents itself. For an owner-occupier, the daily routine matters more: school, work, driving, MRT use and where the family spends weekends.
What about exit?
Thomson Reserve's size creates both liquidity and competition. There should be more transactions, which helps price discovery, but there may also be many similar units competing when you sell.
The Sen has the opposite dynamic. Fewer units can mean less internal competition, but also fewer transactions and potentially a thinner pool of comparable sales at any one time.
I would therefore pay particular attention to differentiation at Thomson Reserve and to total buyer demand at The Sen.
If my budget is around $1.5 million
This is where the comparison becomes interesting.
Thomson Reserve's headline entry is $1.544 million for a compact 592 sqft two-bedroom. At The Sen, current inventory snapshots in early October still showed selected 678 sqft two-bedroom units from about $1.546 million. Recent 678 sqft new-sale caveats in September and October 2026 have ranged from about $1.547 million to $1.78 million. So the same-budget comparison is real, but buyers should not assume every 678 sqft unit at The Sen is available at the lowest figure.
If space and a lower-density environment matter more, The Sen deserves a serious look. If MRT, Ai Tong, scale of facilities and a larger future transaction market matter more, Thomson Reserve may justify the smaller entry size.
I would not decide this from the brochure. I would put the exact units side by side and compare the actual price, floor, facing, usable layout and financing.
If my budget is $2.5 million to $3 million
At this level, the buyer is usually choosing a family home rather than just an entry unit.
Thomson Reserve's three-bedroom starting point is $2.503 million for 947 sqft, while The Sen has larger three-bedroom formats available at lower project-wide psf levels.
The question becomes whether the premium for direct MRT access, the Thomson location and the larger estate is worth more than additional internal space elsewhere.
For a family planning to stay ten years, I would place a surprisingly high weight on daily convenience and the exact home layout. A lower purchase psf is not automatically better if the household dislikes the location after moving in.
My view
If a buyer asks me “Thomson Reserve or The Sen?”, I would not give a one-line answer.
Thomson Reserve is the stronger choice for someone who values direct MRT access, a major full-facility project, Ai Tong proximity and a broader future buyer pool.
The Sen may make more sense for someone who wants a lower-density Upper Bukit Timah environment, values space at the same quantum and is comfortable without direct MRT connectivity.
The important part is that the cheaper unit and the better property are not always the same thing. The right comparison is the exact unit you can buy in each project for the same money.
