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Data last updated 29 Sept 2026, 01:45.

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  4. Klass Siam
  5. Klass Siam, bangkok
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DDproperty

Klass SiamAll units in this condo →

Pathum Wan, Wang Mai · Google Maps
฿14,500,000฿207,143 / m²Above market
2 beds2 baths
฿14,500,000
฿207,143 / m²
View on DDproperty
OverviewPriceCosts & returnsLocationBuildingSimilar

Price comparisonEstimated from other current listings, not a valuation — just a signal.Typical range (25th–75th percentile) of comparable listings, per m²

Above market

11% above the median price/m² of 11 comparable listings in this condo.

This listing
฿14,500,000
70 m² · ฿207,143/m²
At the median for 70 m²
฿13,005,906
฿1,494,095 more than the median
Typical range for this size
฿12,663,913 – ฿15,225,000
Comparables' median asking price: ฿12,900,000

Rental estimate & yieldGross yield = estimated rent × 12 ÷ asking price, before common fees, taxes, vacancy and agent fees. Asking rents, not signed contracts.

Based on 21 rentals in this condo: median ฿548/m² per month × 70 m².

Estimated rent
฿38,357/mo
฿36,522 – ฿43,151/mo
Gross yield
3.2%
3.0% – 3.6%
Median rent of comparables
฿40,000/mo
21 rentals, any size
Rentals of similar size
  • ฿59,000/mo·70 m²·
More details

Address

Subdistrict
Wang Mai
Address
Rama I Road, Wang Mai, Pathum Wan, Bangkok
Nearest transit
260 m (3 min) from W1 National Stadium BTS
Coordinates
13.74822, 100.52855 (approx.)

Listing history

Listing ID
DDproperty #500377074
Posted at
28 Sept 2026
First seen
29 Sept 2026, 00:09
Last seen
29 Sept 2026, 00:15
Raw JSON
70 m²
Condo
฿14,500,000
Above market
฿207,143 / m²
DDpropertyFor sale
View on DDproperty
Listed by
Kittiphop Machchima
Kittiphop Machchima
FREELANCE REAL ESTATE AGENT (TH)
Agent pageContact on DDproperty ↗
Listed by
Kittiphop Machchima
Kittiphop Machchima
FREELANCE REAL ESTATE AGENT (TH)
Agent pageContact on DDproperty ↗
This listing ฿207,143Median ฿185,799฿180,913 – ฿217,500
Similarly priced nearby
  • ฿14,500,000·70 m²·฿207,143/m²·2 beds
  • ฿13,000,000·69 m²·฿188,406/m²·2 beds
  • ฿15,950,000·70 m²·฿227,857/m²·2 beds
  • ฿15,950,000·70 m²·฿227,857/m²·2 beds
  • ฿15,950,000·70 m²·฿227,857/m²·2 beds
  • ฿12,900,000·69.4 m²·฿185,799/m²·2 beds
2 beds
  • ฿35,999/mo·70 m²·2 beds
  • ฿49,000/mo·70 m²·2 beds
  • ฿59,000/mo·70 m²·2 beds
  • ฿49,000/mo·70 m²·2 beds
  • ฿49,000/mo·70 m²·2 beds
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    For sale

    Source details

    Price type
    Negotiable
    Recency
    Listed on Sep 28, 2026 (9h ago)
    Developer
    Kittiphop Machchima
    Agency
    FREELANCE REAL ESTATE AGENT (TH)

    LocationApproximate: this source doesn't publish coordinates, so this is Klass Siam's location taken from other listings.

    Open in Google Maps
    • 198 m to BTS National Stadium
    • 519 m to BTS Ratchathewi
    • 640 m to MRT Ratchathewi
    • 677 m to BTS Siam
    • 1.1 km to BTS Phaya Thai

    Flood risk:LowNo BMA-documented flood-prone spot was found within 800 m of this location.Position is this project's approximate location (median of nearby listings), not this exact unit.Based only on proximity to points BMA itself has flagged as flood-prone or flood-watch — not a hydrological model, and not the 2011 flood extent. A location with nothing nearby is not proven flood-safe: BMA's list covers the spots it chose to document, not a wall-to-wall survey. Source: Bangkok Metropolitan Administration, Department of Drainage and Sewerage (public map data)

    25 sale listings in a 79-unit building

    Commute to business hubsEstimated from OpenStreetMap rail lines, typical dwell/transfer times and walking speed — not a live timetable.Position is this project's approximate location; walking time is approximate too.

    • Siam
      Walk 3 min → BTS National Stadium → Siam (1 stop)
      ~8 min
    • Silom
      Walk 3 min → BTS National Stadium → Silom (3 stops)
      ~12 min
    • Sathorn
      Walk 3 min → BTS National Stadium → Sathorn (4 stops)
      ~14 min
    • Asok / Sukhumvit
      Walk 3 min → BTS National Stadium → Asok / Sukhumvit (5 stops)
      ~16 min
    • Rama 9
      Walk 3 min → BTS National Stadium → MRT Sukhumvit → Rama 9 (7 stops)
      ~28 min

    Other units in Klass Siam

    See all 98 in project
    13
    ฿15,950,000
    2 beds · 70 m²
    For saleDDproperty
    11
    ฿7,100,000
    1 bed · 44 m²
    For saleDDproperty
    13
    ฿7,300,000
    1 bed · 44 m²
    DDproperty
    10
    ฿8,500,000
    1 bed · 50 m²
    DDproperty
    13
    ฿12,900,000
    2 beds · 69 m²
    DDproperty
    12
    ฿12,500,000
    2 beds · 69 m²
    DDproperty
    13
    ฿15,950,000
    2 beds · 70 m²
    DDproperty
    11
    ฿8,350,000
    1 bed · 49 m²
    DDproperty
    ฿8,350,000
    1 bed · 49 m² · Floor 1
    PropertyHubPropertyScout
    ฿8,500,000
    1 bed · 50 m² · Floor 10
    PropertyHubPropertyScout
    14
    ฿10,840,000
    2 beds · 60 m²
    DDproperty
    14
    ฿6,499,000
    1 bed · 45 m²
    DDproperty
    UnitBedsBathsSizeFloorPricePrice/sqmPosted
    13
    Klass Siam, bangkok
    DDproperty
    2270 m²—฿15,950,000
    ฿227,857
    27 Sept 2026
    11
    Klass Siam, bangkok
    DDproperty
    1144 m²—฿7,100,000฿160,99827 Sept 2026
    13
    Klass Siam, bangkok
    DDproperty
    1144 m²—฿7,300,000฿165,90924 Sept 2026
    10
    Klass Siam, bangkok
    DDproperty
    1150 m²—฿8,500,000฿170,00023 Sept 2026
    13
    Klass Siam, bangkok
    DDproperty
    2269 m²—฿12,900,000฿185,79922 Sept 2026
    12
    Klass Siam, bangkok
    DDproperty
    2269 m²—฿12,500,000฿180,03722 Sept 2026
    13
    Klass Siam, bangkok
    DDproperty
    2270 m²—฿15,950,000฿227,85717 Sept 2026
    11
    Klass Siam, bangkok
    DDproperty
    1149 m²—฿8,350,000฿169,47415 Sept 2026
    200m To BTS National Stadium | 1-BR Klass Siam For Sale (ID 2918357)
    PropertyHubPropertyScout×3
    1149 m²1฿8,350,000฿169,47415 Sept 2026
    1-BR Condo at Klass Siam near BTS National Stadium (ID 2918630)
    PropertyHubPropertyScout×2
    1150 m²10฿8,500,000฿170,00014 Sept 2026
    14
    Klass Siam, bangkok
    DDproperty
    2260 m²—฿10,840,000฿180,6679 Sept 2026
    14
    Klass Siam, bangkok
    DDproperty
    1145 m²—฿6,499,000฿144,4229 Sept 2026
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale
    For sale

    2 similar listingsSame project, beds, size and price, but the floor differs or is unknown — might be a different unit.

    ListingFloorAgentPostedPrice
    PropertyHub2-BR Condo at Klass Siam near BTS National Stadium (ID 3005465)↗
    5—9 Sept 2026฿14,500,000
    PropertyScoutคอนโด 2-ห้องนอน ที่ คลาส สยาม ใกล้ BTS รถไฟฟ้าสนามกีฬาแห่งชาติ↗
    5agent16 Jun 2026฿14,500,000
    Stations under construction nearbyExpected opening as last announced by the operator; these dates often slip. Source
    • Orange Line coming to Ratchathewi (expected ~2030) · ~640 m
    • Future station Pratunam (Orange Line, expected ~2030) · ~961 m

    Cost of buying

    Land Office fees and taxes on top of the price. An estimate: the exact amounts are set by the Land Office on transfer day.

    Official appraisal
    ฿148,500/m² × 70 m² = ฿10,395,000
    Treasury Department appraisal, building median (฿144,700–฿154,000/m² by floor) · Registered as: คลาส สยาม
    Asking price is 1.39× the official appraisal
    Valid until 31 Dec 2026 (the next appraisal cycle starts in 2027). Source: Treasury Department (assessprice.treasury.go.th)
    Transfer fee (2 % of appraisal)· split฿207,900
    Stamp duty (0.5 %)· seller฿72,500
    Withholding income tax· seller฿345,738
    You pay on top of the price฿103,950
    All-in for the buyer฿14,603,950
    Seller's taxes and fees฿522,188

    No fee relief: it needs price, appraisal and loan ≤ ฿7M.Taxes are the seller's by custom, but it's negotiable: some sellers ask for a price "net" of fees.Individual sellers: on the appraisal, less a deduction by years held, at progressive rates (max 20 % of the price). Companies: 1 %.Estimate for guidance only, not tax or legal advice. Rules as of September 2026.

    Net rental yieldWhat's left after the recurring costs of actually letting this unit out, on top of the rental estimate above.Vacancy assumes 30 days between tenants (default of 1 month — not enough history for this building yet).Estimate for guidance only: based on asking rents (not signed contracts) and simplified tax/fee rules. Not tax or investment advice.

    Estimated gross rent฿460,278
    Common area fee− ฿67,200
    Vacancy allowance− ฿37,831
    Letting agent fee (1 month/year)− ฿38,357
    Land & Building tax− ฿2,079
    Furnishing & maintenance allowance− ฿23,014

    Key facts

    Price vs market
    11 % above market
    vs 11 similar units in this condo
    Net rental yield
    2.0% net yield
    3.2% gross before costs
    Buying costs
    ฿103,950
    Transfer fee & taxes, 50/50 split, cash
    Common fee
    ฿5,600/mo
    ฿80/m² per month
    Net annual income
    ฿291,798
    Net yield
    2.0%
    1.9% – 2.3%
    vs. 3.2%% gross
    3.2%
    Total investment
    ฿14,603,950
    Price + ฿103,950 buyer's costs

    Cost of owning: ~฿5,600/mo common fee (฿80/m²/month)

    Could rent for
    ฿38,357/mo
    3.2 % gross yield
    Project
    Klass Siam
    Built
    2017
    Floors
    8
    Units
    79

    Building facilities24h security · CCTV · Garden · Gym · Jacuzzi · Keycard access · Library · Lift · Parking · Swimming pool

    Price history

    Observed atPrice
    29 Sept 2026, 00:09฿14,500,000

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