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Data last updated 29 Sept 2026, 00:22.

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DDproperty

Royal Castle SukhumvitAll units in this condo →

Watthana, Khlongtoei Nua · Google Maps
฿14,000,000฿100,000 / m²Fair price30+ days listed
3 beds2 baths
฿14,000,000
฿100,000 / 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

Fair price

About the same as the median price/m² of 60 comparable listings in this condo.

This listing
฿14,000,000
140 m² · ฿100,000/m²
At the median for 140 m²
฿14,045,969
Same as the median
Typical range for this size
฿13,507,786 – ฿15,114,584
Comparables' median asking price: ฿17,000,000

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

Based on 136 rentals in this condo: median ฿390/m² per month × 140 m².

Estimated rent
฿54,652/mo
฿48,125 – ฿58,084/mo
Gross yield
4.7%
4.1% – 5.0%
Median rent of comparables
฿60,000/mo
136 rentals, any size
Rentals of similar size
  • ฿45,000/mo·140 m²·
More details

Address

Subdistrict
Khlongtoei Nua
Address
30 Soi Sukhumvit 39, Khlongtoei Nua, Watthana, Bangkok
Nearest transit
580 m (7 min) from E5 Phrom Phong BTS
Coordinates
13.73433, 100.57169 (approx.)

Listing history

Listing ID
DDproperty #10974930
Posted at
29 Aug 2026
First seen
26 Sept 2026, 20:26
Last seen
26 Sept 2026, 20:26
Raw JSON
140 m²
Condo
฿14,000,000
Fair price
฿100,000 / m²
DDpropertyFor sale
View on DDproperty
Listed by
Khun Sassy
Khun Sassy
บริษัท พีแอนด์เอ็มจิโซ จำกัด
Agent pageContact on DDproperty ↗
Listed by
Khun Sassy
Khun Sassy
บริษัท พีแอนด์เอ็มจิโซ จำกัด
Agent pageContact on DDproperty ↗
This listing ฿100,000Median ฿100,328฿96,484 – ฿107,961
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3 beds
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  • ฿55,000/mo·140 m²·3 beds
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    1. Home
    2. For sale
    3. Watthana
    4. Royal Castle Sukhumvit
    5. Royal Castle Sukhumvit, bangkok
    For sale

    Source details

    Price type
    Negotiable
    Recency
    Listed on Aug 29, 2026 (4w ago)
    Developer
    Khun Sassy
    Agency
    บริษัท พีแอนด์เอ็มจิโซ จำกัด

    Flood risk:MediumNearest: ถนนสุขุมวิท จากแยกอโศก ถึงสุขุมวิท 71 (flood-prone road segment) · ~479 mA BMA-documented flood-prone spot is within easy reach of this location.1 documented spot within 800 mPosition 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)

    78 sale listings in a 146-unit building

    LocationApproximate: this source doesn't publish coordinates, so this is Royal Castle Sukhumvit's location taken from other listings.

    Open in Google Maps
    • 481 m to BTS Phrom Phong
    • 1.2 km to MRT Sukhumvit
    • 1.3 km to BTS Asok
    • 1.3 km to BTS Thong Lo
    • 1.8 km to MRT Queen Sirikit National Convention Centre
    • 1.9 km to MRT Phetchaburi

    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
    ฿61,800/m² × 140 m² = ฿8,652,000
    Treasury Department appraisal, building median (฿58,300–฿72,800/m² by floor) · Registered as: รอยัล คาสเทิล สุขุมวิท
    Asking price is 1.62× 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฿173,040
    Stamp duty (0.5 %)· seller฿70,000
    Withholding income tax· seller฿254,230
    You pay on top of the price฿86,520
    All-in for the buyer฿14,086,520
    Seller's taxes and fees฿410,750

    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.No fee reported for this project: estimated from similar buildings nearby.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฿655,822
    Common area fee− ฿75,600
    Vacancy allowance− ฿53,903
    Letting agent fee (1 month/year)− ฿54,652
    Land & Building tax− ฿1,730
    Furnishing & maintenance allowance− ฿32,791
    Net annual income฿437,145
    Net yield
    3.1%
    2.7% – 3.3%
    vs. 4.7%% gross
    4.7%
    Total investment
    ฿14,086,520
    Price + ฿86,520 buyer's costs

    Cost of owning: ~฿6,300/mo common fee (฿45/m²/month)

    Key facts

    Price vs market
    At market price
    vs 60 similar units in this condo
    Net rental yield
    3.1% net yield
    4.7% gross before costs
    Buying costs
    ฿86,520
    Transfer fee & taxes, 50/50 split, cash
    Common fee
    ฿6,300/mo
    Estimated, ~฿45/m² per month
    Could rent for
    ฿54,652/mo
    4.7 % gross yield
    Project
    Royal Castle Sukhumvit
    Built
    1993
    Floors
    24
    Units
    146

    Building facilities24h security · CCTV · Golf simulator · Gym · Keycard access · Lift · Parking · Playground · Sauna · Swimming pool

    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.

    • Asok / Sukhumvit
      Walk 8 min → BTS Phrom Phong → Asok / Sukhumvit (1 stop)
      ~13 min
    • Siam
      Walk 8 min → BTS Phrom Phong → Siam (5 stops)
      ~21 min
    • Silom
      Walk 8 min → BTS Phrom Phong → Silom (7 stops)
      ~25 min
    • Rama 9
      Walk 8 min → BTS Phrom Phong → MRT Sukhumvit → Rama 9 (3 stops)
      ~25 min
    • Sathorn
      Walk 8 min → BTS Phrom Phong → Sathorn (8 stops)
      ~27 min

    Other units in Royal Castle Sukhumvit

    See all 233 in project

    Price history

    Observed atPrice
    26 Sept 2026, 20:26฿14,000,000
    17
    ฿17,000,000
    3 beds · 166 m²
    For saleDDproperty
    ฿18,500,000
    3 beds · 190 m² · Floor 3
    For salePropertyHubPropertyScout
    14
    ฿16,200,000
    2 beds · 140 m²
    DDproperty
    23
    ฿18,500,000
    3 beds · 191 m²
    DDproperty
    15
    ฿16,500,000
    3 beds · 164 m²
    DDproperty
    5
    ฿23,500,000
    3 beds · 225 m²
    DDproperty
    14
    ฿13,500,000
    3 beds · 133 m²
    DDproperty
    19
    ฿17,500,000
    3 beds · 167 m²
    DDproperty
    29
    ฿31,600,000
    4 beds · 265 m²
    DDproperty
    21
    ฿15,500,000
    2 beds · 140 m²
    DDproperty
    14
    ฿27,700,000
    4 beds · 220 m²
    DDproperty
    21
    ฿15,900,000
    3 beds · 144 m²
    DDproperty
    UnitBedsBathsSizeFloorPricePrice/sqmPosted
    17
    Royal Castle Sukhumvit, bangkok
    DDproperty
    33166 m²—฿17,000,000

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

    ListingFloorAgentPostedPrice
    PropertyHubA036398 Royal Castle Sukhumvit 39↗
    5—18 May 2026฿14,000,000
    PropertyHubLTH3861 – Royal Castle FOR SALE 3 beds 2 baths size 140 Sq.M. Nearby BTS Phrom Phong station ONLY 14 MB↗
    0
    —
    18 Mar 2026
    ฿14,000,000
    PropertyScoutคอนโด 3-ห้องนอน ใกล้ BTS พร้อมพงษ์↗
    —agent16 Mar 2026฿14,000,000
    ฿102,410
    28 Sept 2026
    3-BR 190 Sqm At Royal Castle Sukhumvit Near BTS Phrom Phong (ID 3337979)
    PropertyHubPropertyScout×3
    33190 m²3฿18,500,000฿97,36828 Sept 2026
    14
    Royal Castle Sukhumvit, bangkok
    DDproperty
    22140 m²—฿16,200,000฿115,71427 Sept 2026
    23
    Royal Castle Sukhumvit, bangkok
    DDproperty
    33191 m²—฿18,500,000฿96,90426 Sept 2026
    15
    Royal Castle Sukhumvit, bangkok
    DDproperty
    33164 m²—฿16,500,000฿100,32826 Sept 2026
    5
    Royal Castle Sukhumvit, bangkok
    DDproperty
    34225 m²—฿23,500,000฿104,44425 Sept 2026
    14
    Royal Castle Sukhumvit, bangkok
    DDproperty×2
    32133 m²—฿13,500,000฿101,26825 Sept 2026
    19
    Royal Castle Sukhumvit, bangkok
    DDproperty
    33167 m²—฿17,500,000฿104,79025 Sept 2026
    29
    Royal Castle Sukhumvit, bangkok
    DDproperty
    45265 m²—฿31,600,000฿119,24524 Sept 2026
    21
    Royal Castle Sukhumvit, bangkok
    DDproperty
    22140 m²—฿15,500,000฿110,71424 Sept 2026
    14
    Royal Castle Sukhumvit, bangkok
    DDproperty
    44220 m²—฿27,700,000฿125,90923 Sept 2026
    21
    Royal Castle Sukhumvit, bangkok
    DDproperty
    32144 m²—฿15,900,000฿110,41723 Sept 2026
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