
Arlo Washington DC
Best for guests who want a modern, social hotel with a seasonal rooftop pool and active bar scene close to museums and the arena.
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Arlo Washington DC is a 4-star lifestyle hotel that mixes a restored 1888 apartment building with a modern addition and a seasonal rooftop pool — good for travelers who want lively rooftop energy and easy museum/arena access. Waldorf Astoria Washington DC is a landmark five-star hotel in the former Old Post Office building on Pennsylvania Avenue — read this if you prefer formal, high-end service and a traditional luxury address near the National Mall.
Updated · about 1.0 km apart

Best for guests who want a modern, social hotel with a seasonal rooftop pool and active bar scene close to museums and the arena.

Best for travelers seeking full-service, classic five-star luxury in a historic landmark on Pennsylvania Avenue with a major spa and fine-dining options.
When Arlo Washington DC wins: choose Arlo if you want a contemporary, energetic stay with a rooftop pool and casual-to-upscale dining in a converted historic apartment building near Capitol-area museums and Capital One Arena.
When Waldorf Astoria Washington DC wins: choose the Waldorf if you want formal five-star service, large on-site meeting and event capacity, a named full-service spa, and a landmark address on Pennsylvania Avenue with signature dining (including Sushi Nakazawa).
Bottom line: Arlo is the choice for a younger, social, design-forward stay with rooftop life and lower-key luxury; Waldorf Astoria is the pick for traditional five-star formality, refined service, and landmark hotel drama.
| Category | Arlo Washington DC | Waldorf Astoria Washington DC |
|---|---|---|
| Overall vibe | Lifestyle, modern-meets-historic, rooftop energy | Formal five-star Beaux-Arts landmark |
| Location | Judiciary Square; short walk to National Building Museum, Capital One Arena, Smithsonian museums | 1100 Pennsylvania Avenue NW; central Pennsylvania Avenue near National Mall and CityCenterDC |
| Size (rooms) | 445 rooms | 263 rooms |
| Building history | Restored 1888 Harrison Apartment Building with new 12-story addition | Former Old Post Office building (Beaux-Arts landmark) |
| Pools | Seasonal rooftop outdoor pool (ART DC) — guest access via room key | Not published |
| Restaurants & bars | Bodega café (grab-and-go), ART DC rooftop bar, Altair (new American restaurant) — rooftop open to locals | Sushi Nakazawa (sushi), coffee shop/cafe, bar/lounge, 24-hour room service |
| Spa & wellness | Alo Wellness Club concept: 24-hour fitness center, on-demand in-room wellness; no traditional full-service spa published | Full-service spa with treatment rooms (massages, body treatments, facials) |
| Event & meeting space | About 4,287 sq ft across 5 meeting rooms; multiple small-to-medium event venues including rooftop and courtyard | Large meeting/ballroom capacity (conference space ~38,942 sq ft / 3,618 m²) and ballroom |
| Accessibility & family policy | All-ages property; lead guest must be 21+ to check in (hotel states family-friendly in sources) | Not adults-only; standard ID and incidental policies apply (lead guest minimum age 21 at check-in per hotel policy) |
| Parking & transport | No on-site garage; covered self-parking nearby (Capitol Crossing Garage) and Metro access (Judiciary Square Red Line ~5-min walk) | Valet parking (surcharge) and covered parking published; central walkable location to downtown sights |
Arlo sits in Judiciary Square, a short walk to museums, Capital One Arena and Union Station.
Pick Arlo for an active, museum-and-arena–adjacent base with easy metro access.
Waldorf Astoria occupies the former Old Post Office on Pennsylvania Avenue, steps from downtown ceremonial routes and major sights.
Choose Waldorf for a high-profile, central Pennsylvania Avenue address and formal downtown presence.
Arlo offers 445 individually styled rooms across a restored 1888 building and a modern tower.
Arlo is for travelers who want design-forward rooms, outdoor-access room types, and modern amenities.
Waldorf Astoria provides 263 individually decorated guestrooms with classic five-star finishes.
Waldorf suits guests wanting formal luxury fittings, a variety of suite choices, and upscale room amenities.
Arlo’s food-and-drink program centers on a grab-and-go café and a lively rooftop bar with small plates.
Arlo is a good fit if you want rooftop cocktails and casual-to-upscale dining with local nightlife access.
Waldorf’s dining highlights include Sushi Nakazawa and 24-hour room service, oriented toward fine dining.
Waldorf is better for travelers prioritizing formal fine-dining options and full in-house breakfast and room service.
Arlo’s signature amenity is its seasonal ART DC rooftop pool and adjacent rooftop lounge.
Arlo’s rooftop pool and lounge are central to its appeal for social stays in warmer months.
Waldorf’s public-facing amenities emphasize full-service hotel facilities and a spa.
Waldorf’s signature draw is its full-service luxury offerings and spa rather than a seasonal rooftop pool.
Arlo emphasizes a 24-hour fitness center and rooftop nightlife (ART DC) over a traditional spa.
Arlo is geared to guests who want workouts plus rooftop nightlife rather than full spa treatments.
Waldorf leans on a full-service spa, a quieter high-end bar/lounge, and formal evening options.
Waldorf is better if your trip includes spa time, formal dinners or business events with evening receptions.

Arlo — seasonal rooftop pool and ART DC lounge with Capitol and Monument sightlines.

Waldorf Astoria — full-service spa, five-star service, and classic landmark rooms.

Waldorf Astoria — large conference and ballroom capacity (conference space ~38,942 sq ft).

Arlo — immediate walkability to the National Building Museum, Capital One Arena and nearby Smithsonian sites.
Arlo — ART DC rooftop is designed for cocktails, sharing plates and a lively night scene; the pool deck is a seasonal draw.
Waldorf Astoria — the supplier listing and descriptions publish a full-service spa with massages, facials and body treatments; Arlo does not publish a traditional spa.
No — both properties are not adults-only. Note both require the lead guest checking in to be at least 21.
Waldorf Astoria — its published conference and ballroom space (about 38,942 sq ft / 3,618 m²) is substantially larger than Arlo’s meeting footprint.
Explore how Arlo Washington DC stacks up against other hotels nearby:
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