THE LINE Ratchathewi
The Line Ratchathewi belongs to the resale market, not the pipeline of Bangkok developments that buyers can only judge from renderings. Its single tower rises 38 floors and contains 231 condominium units.
Bangkok

From 5,990,000 THBPer broker listings. Current price list, layouts and availability — discussed one-to-one with a project specialist
Quick — 10-second read
- What it is
- Condominium
- Where
- Bangkok
- Stage
- Completed · 2018
- Price
- From ฿5,990,000guide price, final by unit
- Transparency
- 10 facts confirmed · 7 to verify
Gallery
Photographs from the project’s materials.
Who is behind this project
- Developer
- SansiriPublic company · SIRIOpen developer profile →
- Track record
- Sansiri’s corporate timeline gives a useful picture of how the business evolved.Company data; check the specific project independently.
- Projects with us
- 115
- Transparency
- Public reporting (SIRI) — independently checkable
Brand ≠ the legal entity signing your contract. This project may use a separate project company or joint venture — verify the seller and developer for the selected unit.
Why this project is worth a look
Rail access without a drive
Ratchathewi BTS is a short walk away, and Phaya Thai provides the connection to the airport rail service. It is a practical location for trips around central Bangkok, though street crossings and the walking route matter more than a platform's distance estimate.
A real building to inspect
The 38-storey, 231-unit tower has been operating for years. Buyers can assess actual lift service, shared spaces, finishes and maintenance instead of judging a completion promise or a sales rendering.
Layouts beyond small flats
Original plans range from studios to family-sized apartments, a two-level configuration and a penthouse. The distinction between one or two bathrooms and the way rooms connect can be more important than the raw area.
Amenities across the tower
Swimming and exercise are centred on level 11, with reading and working areas higher up and landscaped rooftop space. These facilities can improve daily life when they are properly maintained and accessible to residents.
Comparable resale choices
Existing listings specify floors, areas and prices, making it possible to compare actual homes. The useful comparison goes further: outlook, condition, current charges and whether the individual title is eligible for foreign freehold transfer.
About the project
The Line Ratchathewi belongs to the resale market, not the pipeline of Bangkok developments that buyers can only judge from renderings. Its single tower rises 38 floors and contains 231 condominium units. The building has been occupied for years, which changes the buyer's job: construction delivery risk is no longer the central question, but management quality, current condition and the specific seller's paperwork are. You can see the lift lobby, inspect the pool and test the apartment rather than rely on a model room. That direct evidence is useful, provided it is followed by proper document checks.
Sansiri is the development brand behind the scheme. The project originated in a 2015 series developed in partnership with BTS Group, the transport-linked business, when rail-access locations were the core idea. That history explains the site selection. It does not mean a resale buyer is purchasing from Sansiri today. A private owner, an investor or a company may now be the counterparty, and each can present a different legal and practical situation. The party receiving the funds, the name on the condominium title and the actual authority to sell all deserve attention before a deposit changes hands.
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The address used by current maps and major property portals is 598 Phetchaburi Road, near the entrance to Soi Phetchaburi 18. Ratchathewi BTS station is within walking distance, commonly described at around 220 to 350 metres, depending on the starting point and method. It is a meaningful advantage in a city where a short drive can take unexpectedly long. It is also a main-road building rather than a secluded residential enclave. The road-facing elevation can receive traffic noise, and the pedestrian experience around junctions matters more than a neat distance figure on a listing page.
The neighbourhood is useful for people whose days move across central Bangkok. Siam's shopping and educational district is close, Pratunam is nearby, and the Phaya Thai transport connection provides access to the Airport Rail Link. This is not an airport-side address; it is a place where an airport rail journey is possible without relying solely on a taxi. The surrounding streets mix shopping, offices, schools and transport traffic, so they do not behave like a quiet suburban neighbourhood. Consider what your ordinary weekday involves. For someone commuting around the centre, the rail network may matter more than a larger apartment on the city's edge.
The building's character is partly architectural rather than decorative. Somdoon Architects described an L-shaped site and a façade assembled with angled vertical fins intended to control views between apartments. The result gives the tower its recognisable appearance, but the design rationale cannot tell you what any individual owner will see. One unit may face open city space; another may look toward nearby buildings. Privacy, afternoon sun and the feeling of enclosure vary with orientation, floor and neighbouring development. Even apartments with identical floor areas can offer quite different daily experiences.
Shared facilities are spread vertically through the tower. The entrance and landscaped areas are at the bottom, with parking occupying much of the lower section. A pool deck and gym sit on level 11; reading and working spaces occupy parts of levels 31 and 32; the top of the building includes a roof garden and lounge area. This arrangement can make the common areas more interesting than one standard ground-floor amenity room. It also makes ongoing maintenance important: lifts, mechanical equipment, wet areas and open-air spaces all need proper attention long after the sales campaign has ended.
Original project descriptions included a pool with a shallow section and jacuzzi, fitness equipment, spaces for reading and meetings, landscaped decks and controlled access. Some sources also describe an outdoor movie arrangement, parcel facilities and electric-vehicle charging. These are documented elements of the project's intended amenity offer, not a live guarantee that every service operates unchanged in October 2026. A building visit should establish what is actually open, which spaces residents and tenants may use, how reservations work and whether any major repairs are pending. Photographs from a launch campaign cannot answer those questions.
Parking deserves its own assessment. Launch-era material described an automated parking system and a provision of roughly 67% of the unit count. That is neither an individual parking allocation nor proof that access remains straightforward at busy times. Prospective owners who drive should investigate vehicle-size restrictions, waiting times, charging arrangements and maintenance of the machinery. Buyers who use the BTS every day may care less about parking access, yet still contribute to the building expenses associated with it. The practical value of the system is different for each household.
There is considerably more variation in the original apartment range than the basic studio-versus-one-bedroom choice. Published layouts cover small studios, compact one-bedroom homes, different two-bedroom configurations, three-bedroom apartments, a duplex option and a penthouse. For the smallest formats, storage and usable space around the bed and kitchen are decisive. For larger homes, bathrooms, bedroom separation and where people can work become more important. Historical specifications also mention different ceiling heights for certain units. The actual registered plan and measurements of a resale apartment should take precedence over an old generic brochure.
A low advertised entry price should not be confused with the price of the project as a whole. A 28 sqm studio was advertised on DDproperty for THB 5.99 million in a listing dated 3 October 2026. Other studios and one-bedroom properties carry higher asks, while larger two- and three-bedroom units sit in substantially different price bands. None of these listing prices is evidence of a completed sale. Furnishing, renovation, outlook, exact area and the type of ownership available to a foreign buyer may all influence the asking figure. The advertised minimum is a starting point for a conversation with a specialist, not an offer that remains available by default.
A foreign buyer needs to separate apartment layout from ownership eligibility. Under Thailand's condominium rules, foreign freehold ownership is limited to 49% of the combined unit floor area in a registered condominium. Listings for The Line Ratchathewi include both Thai-quota and foreign-quota descriptions. These labels are consequential: a low-priced Thai-quota apartment is not automatically registrable in a foreign buyer's name. The condominium juristic person's current quota certificate, the individual title, the seller's authority and the required evidence of the purchase funds all matter. A portal's generic 'freehold' field cannot perform those checks.
A lease arrangement, where offered, should not be treated as identical to a condominium title in the owner's name. Thai long leases are commonly framed around a maximum initial 30-year term, with any further period depending on lawful arrangements and the parties' obligations. Renewal wording is not the same as a completed transfer of permanent ownership. There is no evidence that every resale unit in this building is being sold on the same legal terms. Matching two apartment prices is only meaningful after the buyer knows precisely which rights each transaction would deliver and whether those rights can be registered.
Sources differ on the completion date. Large listing platforms often say December 2017, while Sansiri's own progress archive gave April 2018 as the expected completion date, and the project's architect describes the realised building under 2018. The sensible conclusion is not to pretend that one unsourced day settles the disagreement. The tower is a long-completed residential building; a purchaser should now be more interested in the registered condominium documents, the building's maintenance history and the current state of the installations. The original deadline is useful context, not a substitute for those records.
Published common-area figures give some indication of ownership costs. Project profiles quote THB 90 per square metre per month in common fees, with an original sinking-fund contribution of THB 600 per square metre. The first figure describes recurrent shared-area upkeep; the second was presented as a one-off contribution toward major building expenditure at transfer. Neither should be copied mechanically into a current purchase budget without the latest juristic-person statement. Rates can be revised, special assessments can arise and a particular seller may owe unpaid charges. In an established high-rise, documentation of the reserve and planned works matters as much as the brochure-level amenities.
The building has an active rental market, but rental advertisements are only asking prices. PropertyHub displayed examples updated on 9 October 2026, including a one-bedroom apartment of approximately 34 sqm asking THB 22,000 a month. That is useful evidence that landlords are marketing units in the development; it says nothing by itself about how long the apartment will remain vacant, whether a concession was needed or what the owner ultimately keeps. Management fees, repairs, agent commissions, taxes and changes of tenant have to be considered before anyone forms an investment expectation. A guaranteed yield should not be inferred from a handful of ads.
Living here is less about resort-style seclusion and more about getting on with life in the middle of Bangkok. Shops, restaurants and major malls are accessible without treating every errand as a car journey. There is a price for that convenience: busier footpaths, road noise, and a neighbourhood that feels different during the weekday rush and after dark. Visit at the time you would normally leave for work or return home. A daytime viewing on an unusually quiet day may give the wrong impression of the traffic, lift use and sound that accompany a typical week.
The 231 residences share a single building, but they serve a diverse population: someone occupying a small studio will have different expectations from a family in a large three-bedroom home. Shared amenities, access systems and lifts bring those households together. Current pet rules, visitor procedures and any restrictions on rental arrangements therefore have a direct effect on the usefulness of the apartment. One portal says pets are not allowed, but a prospective buyer should obtain the condominium's operative rules rather than rely on a category label that could be outdated. The same applies to tenant access to common facilities and rules concerning short stays.
Compare two individual apartments by more than asking price per square metre. Road exposure, neighbouring towers, afternoon sun, elevation relative to the pool deck and the façade fins can alter light, noise and privacy. A high floor is no universal guarantee of an uninterrupted outlook. Likewise, the most attractive furnished photographs may conceal worn equipment or a layout that does not suit your daily routine. The strengths of this development are tangible: a built Sansiri-linked tower, a useful central address, good rail access and a range of home sizes. Whether a particular purchase works depends on the apartment, ownership papers, recurring costs and the terms agreed with the seller.
Ownership format
Foreign freehold ownership of a condominium unit is possible within the statutory 49% share of aggregate unit floor area. Listings use both Thai-quota and foreign-quota labels; the selected unit's eligibility must be certified. Any leasehold offer gives different rights from freehold title.
Unit types & sizes
The original entry-size layout, best judged by how well its small footprint works with the furniture actually inside it. Storage, street noise and daylight can make two studios feel very different. A roughly 28 sqm studio was advertised at THB 5.99 million in early October 2026, but the price and eligibility of that particular unit must be checked, not assumed for every studio.
A separate bedroom helps when one person is working and another is resting, but this is still a compact city apartment. The arrangement of the kitchen, storage and desk matters more than a marginal size difference. Resale interiors vary widely, so a brochure layout is no substitute for walking through the actual unit.
The second bedroom adds flexibility for a child, guests or a home office while keeping the total area moderate. One shared bathroom may become the compromise for a household of several adults. Check the exact room dimensions and door swings: a nominal second bedroom is not always a comfortable full-time bedroom.
Two bathrooms can make a meaningful difference to a couple with children, flatmates or frequent guests. The size range is broad, so these layouts should not be treated as interchangeable. A larger unit may gain a more usable living area, while an apparently cheaper listing may sacrifice outlook or renovation quality.
This historical three-bedroom plan gives a family more separation without leaving the central-city setting. The trade-off is the same tower environment shared with compact rental-sized apartments. Families should weigh circulation space, lift access and the practical journey to schools or activities, not just the bedroom count.
A larger family-oriented configuration where the bathroom arrangement may improve privacy for several residents. An October 2026 resale listing offered approximately 106.7 sqm for THB 28 million, illustrating how actual advertised measurements can differ from original marketing plans. The legally registered area and room layout should prevail over catalog descriptions.
The original range also included a two-level layout, which offers a different sense of separation from a conventional flat. Stairs, however, change how the home works for children, older residents or anyone carrying things between levels. Check title-plan measurements, ceiling heights and whether the internal circulation fits everyday life.
The largest format listed in the original project information. Its appeal depends on the actual floor position, views, privacy and condition, none of which follows automatically from the penthouse label. The original type is documented, but a dependable current asking price or available unit was not established for October 2026.
These are documented original configurations, not a live inventory. Resale listings may show measurements that differ from historical brochure plans. Confirm the titled area, actual layout, condition, ownership eligibility and price for the individual apartment. Prices are the lowest the brokerage boards publish, not the developer’s price list — the price and availability of a specific unit are something we go through with you personally.
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Facilities
18 amenities
Pool and leisure
- swimming pool
- shallow pool area
- jacuzzi
- poolside seating
Fitness
- gym
- steam room
Work and reading
- library
- coworking areas
- meeting room
Gardens and outdoor space
- ground-level garden
- level-31 landscaped terrace
- rooftop garden
Convenience
- automated parking
- parcel lockers
- EV charging
Access and security
- 24-hour security
- controlled entry
- CCTV
How the tower is arranged
- Lower levelsLobby, entrance, landscaped areas and parking
- Level 11Pool, jacuzzi, fitness and leisure deck
- Levels 12–30Primarily residential apartments
- Levels 31–32Library, working areas and some residences
- Level 38Rooftop garden and lounge area
Location
- Navigation address: 598 Phetchaburi Road, by Soi Phetchaburi 18, Thanon Phetchaburi, Ratchathewi, Bangkok 10400, Thailand.
- Ratchathewi BTS is within a short walk; published distances vary with the chosen entrance and mapping method.
- Phaya Thai offers a transfer to the Airport Rail Link, while Siam and Pratunam form part of the surrounding central-city catchment.
- The address fronts busy Phetchaburi Road, so noise and the experience of reaching the building change over the day.
Address / landmark598 Phetchaburi Road, Soi Phetchaburi 18, Thanon Phetchaburi, Ratchathewi, Bangkok 10400, Thailand
The map loads from OpenStreetMap on request.
The circle shows the project’s approximate location; we confirm the exact address and the plot boundaries when you get in touch. © OpenStreetMap contributors.
Near the project
Landmarks around the project, from open maps (OpenStreetMap):
Distances are straight-line from the project, not walking routes — the real route is longer. © OpenStreetMap contributors.
What this project means for me
Build your scenario from the published facts and your choices on this page. Not a rating or a return promise.
Choose a goal; your selections in the widgets below will appear in the summary.
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Resolve questions before booking
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Data freshness and provenance
- Latest recorded source / material check
- Price
- Public-listing reference
- Open items in the discrepancies section
- 3
The date belongs to an editorial record, not every individual fact. It does not verify a reviewed contract, legal clearance, current price or unit availability.
Price basis · Discrepancies · Dossier sourcesDaily essentials at a glance
The closest mapped place in each available category.
FamilyMart
Deja Hospital
Santiratwitthayalai School
Pathumwananurak Park
OpenStreetMap · straight-line distances from the mapped project area, not walking routes.
When is it more comfortable to visit?
Temperature, rain, sun and wind month by month for the surrounding area.
NASA POWER · 2001–2025 · area-wide climate averages, not a daily forecast. Rain bars show mm/day. Sun line is solar energy, not a count of sunny days.
Airports and local transport
Compare nearby arrival points before choosing a route.
Distances are straight-line from the mapped project area, not driving distances or travel times. Airport positions are reference points; the transport stop is from OpenStreetMap.
Tourism in the wider destination
Bangkok · September 2026
Visitor flow month by month
Foreign visitors and hotel room occupancy in the province
What is actually nearby
Selected visitor-friendly places within 5 km
Thailand Ministry of Tourism and Sports · Ministry of Tourism and Sports · preliminary monthly province figures, not this property’s rental occupancy. Nearby counts are selected OpenStreetMap places, not measured foot traffic.
How housing prices have changed
Bangkok and vicinity · published price index, historical data
2015-01 — 2026-08 · Bank of Thailand · 2011=100. Regional housing index, not villa transaction prices or this project’s return.
Nearby projects on the map
Published sale-price references within 5 km, not rental listings or confirmed availability.
Compare the project with nearby alternatives
Approximate project locations and straight-line distances. Sale prices cannot be treated as comparable rent.
Price & purchase terms
- Current price: From THB 5.99 million in a DDproperty listing dated 3 October 2026 (a studio of about 28 sqm). This is a low-end resale asking-price reference, not a developer offer; availability, foreign ownership eligibility and terms require individual confirmation.
- Completed: 2018
We show the lowest of the prices the brokerage boards publish: their figures for the same unit differ by a few per cent, and none of them is the developer’s price list. For a resale unit, confirm the current price, availability and payment terms with its seller or authorised representative before payment.
Investment return calculator
The starting amount is the published project price. Adjust the sliders to compare scenarios.
Show the calculation by year
| Year | Gross rent | Running costs | Cumulative net rent | Property value | Total |
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8% potential gross rent, 65% occupancy, 20% running costs and 3% price change are editable examples, not a forecast. Taxes, financing, transaction fees and resale terms are excluded. Occupancy and costs apply to rent, not to the property value.
What else can you compare it with?
Change rent, occupancy and costs above; public benchmarks are reference points.
The property bar is net rental cash flow divided by purchase price, before tax; it excludes price growth. US Treasury yield is in USD. Inflation shows purchasing-power erosion, not a separate investable return. Risk, taxes, liquidity and currency differ. US CPI source
Project stage — what we know
Completed in 2018. Not a render.
Visit in person and inspect the actual units; current resale or rental offers may exist.
- Planned
- Building
- Done
What we know
Verified details and questions to settle before reserving.
10 key facts confirmed; 7 more to verify before reserving.
This is not a project rating.
At a glance
Is this project right for you?
Tick what describes you — we will show whether this may be a fit. Honest, without gloss.
Your selections are not saved anywhere. This is a decision aid, not an assessment.
Best for: Central Bangkok residents and commuters who expect to use the BTS frequently, value access to Siam and need a location where everyday errands do not depend entirely on a car.; Buyers who favour completed resale property over an off-plan commitment and want to judge the actual building, management records and the selected apartment before paying.; Couples or smaller families who want options from separate-bedroom compact homes to larger two-bathroom apartments, while accepting the pace of a central-city tower.; Owners considering a conventional longer-term rental strategy who are prepared to underwrite the exact unit, its expenses and potential vacancy rather than use advertised rent as a promise of net yield.; may not suit: Someone wanting quiet suburban streets, a private garden or a low-density compound away from heavy traffic will probably find the immediate setting too busy.; Anyone who requires a guaranteed parking allocation, pet permission or unconstrained short-term letting should not proceed without written confirmation from the condominium management.; Foreign purchasers unwilling to verify the available foreign quota, the registered title and the seller's authority cannot safely rely on a low asking price or a generic portal ownership label..
What we confirm before booking
A short, project-specific list. We request these from the developer and go through them with you before any payment.
- which units are free, and on which floors
- the legal entity in the SPA and the payee’s bank details
- the title format and what is registered against the unit
- the selected unit’s contractual handover date in the SPA — the published date is only a reference
Disputed and unknown information
This keeps the open points in one place. A missing or disputed fact is not treated as a conclusion.
- Completion is reported as December 2017 by some portals and as 2018 by other sources. Sansiri's archive gave April 2018 as an expected date; the exact completion and condominium-registration day has not been established from primary registration records.
- Current maps and mainstream listings identify 598 Phetchaburi Road, while one skyscraper directory gives 448/2. The navigation address here is 598; the address printed on the title documents must be checked for the individual unit.
- Listings distinguish Thai and foreign quotas, but the remaining foreign ownership allocation for any selected unit has not been verified against a fresh certificate from the condominium juristic person.
FAQ
What does a unit cost in THE LINE Ratchathewi?
From 5,990,000 THB — per broker listings. Prices are the lowest the brokerage boards publish, not the developer’s price list — the price and availability of a specific unit are something we go through with you personally.
When was THE LINE Ratchathewi completed?
The building was completed in 2018. The transfer timing for a selected resale unit is agreed with its seller.
Sources and documents
Reviewed: developer materials and public records. We publish no outbound links.
- Developer's official site — Document: projectprogress/en/const-detail.php checked 10.10.2026
- Developer's official site — Document: the-invisible-line checked 10.10.2026
- Government / official registry — Document: public/index.php/issue-focus-detail/010_014 checked 10.10.2026
- Government / official registry — Document: public/issue-focus-detail/010_013 checked 10.10.2026
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Mark Erometskiy
Thailand property expert (Pattaya, Phuket and Bangkok), co-founder of Bomi Home. Will help with the unit, ownership, stage and terms before you decide.
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Informational, not a public offer or personal investment, legal or tax advice. Price, availability, payment terms and guaranteed-return/buyback conditions are confirmed per unit with the developer and their contract.