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Loha Prasat (Wat Ratchanatdaram)

A seven-storey building with 37 metal spires, opposite the Golden Mount. Unlike anything else in Bangkok, and a short stop.

Updated
3 min read
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In this guide ↓
  1. What it is
  2. The building
  3. A long build
  4. How it compares with its neighbours
  5. Hours and entry
  6. Getting there
  7. Combining it

Loha Prasat, the "iron palace", is a multi-tiered temple building at Wat Ratchanatdaram in the Old Town, topped with 37 metal spires. It is unlike any other building in Bangkok, it stands opposite the Golden Mount, and it is a short stop that suits a second day in the Old Town.

Loha Prasat (Wat Ratchanatdaram)

An unusual seven-storey building with 37 metal spires, opposite the Golden Mount.

Wear: Shoulders and knees covered.

Built
Begun in 1846; building restarted in 1960; opened to the public in 2007 (Wikipedia) (checked October 2026 · source)

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Allow
20–30 minutes
Go
Combined with the Golden Mount, in the morning or late afternoon
Pair with
Wat Saket (The Golden Mount), Wat Suthat & the Giant Swing
Getting there
  • Phanfa Leelard · Khlong Saen Saep Boat

What it is

Wat Ratchanatdaram means "Temple of the Royal Niece". It was built on the orders of King Rama III in 1846 for his granddaughter, Princess Somanass Waddhanawathy, at the junction of Ratchadamnoen Klang and Maha Chai roads (Wikipedia). The 37 spires have a metallic finish, which gives the building its name, and they represent the 37 Bodhipakkhiya Dharma of Buddhism, the "factors of enlightenment".

The building

Loha Prasat has seven storeys arranged in three levels. The lowest has 24 spires, the middle level 12 and the top one: 24 + 12 + 1 = 37. At ground level a labyrinth of columns supports the structure, and in late 2007 pictures telling the history of the building were installed in the corridors.

It is based on an old Buddhist design, modelled on two earlier structures in Shravasti in India and Anuradhapura in Sri Lanka, neither of which survives. The Indian one is said to have had 1,000 rooms with a golden spire on top; the Sri Lankan one had nine floors and a roof thatched with copper. Wikipedia describes this as one of two such buildings that remain.

A long build

The building was planned in 1846 but not completed in Rama III's reign. Later kings tried to finish it, and building only restarted in 1960 under Rama IX, supervised by the Fine Arts Department. A Buddha relic was placed in the topmost spire in 1995, and the building opened to the public in 2007.

How it compares with its neighbours

Loha PrasatGolden MountWat Suthat
Known forUnusual metal-spired architectureA climb and a view over the Old TownA major bronze Buddha and murals
ScaleA small siteA hill of about 300 stepsA large temple compound
TimeA short stopAbout an hour with the climbAround an hour

The time estimates are ours; the other two pages give the sources for their details.

Hours and entry

We couldn't find an official timetable or price (checked October 2026), so check at the gate. The temple is small enough that you will not need long.

Getting there

  • Khlong Saen Saep boat to Panfa Leelard pier, a short walk away; see the canal boat guide.
  • MRT Sam Yot, then a walk.
  • Taxi or Grab from the Old Town.

Combining it

Loha Prasat is directly opposite the Golden Mount and a short walk from Wat Suthat and the Giant Swing. A second-day Old Town loop could be the Golden Mount, Loha Prasat, Wat Suthat and a lunch in the shophouse restaurants around Maha Chai Road (Bangkok street food). Dress as for any Thai temple, with shoulders and knees covered.

Back to Bangkok Old Town (Rattanakosin)