Metcalfe House, 19th century retreat house in Mehrauli, India

Metcalfe House is a 19th-century residential building in Mehrauli featuring British colonial architecture with stone columns, high ceilings, and decorated wall remains. It sits within Mehrauli Archaeological Park alongside other heritage structures.

The retreat in Mehrauli was built by Sir Thomas Metcalfe, British Resident at the Mughal court, who refurbished the 16th-century tomb of Quli Khan, brother of Adham Khan, as a country house called Dilkhusha, meaning "Delight of the Heart" in Urdu. He surrounded the tomb with rest houses, follies and gardens, and leased the retreat to honeymooning couples; an inscription at the site records this rental use.

The retreat in Mehrauli takes its Urdu name Dilkhusha, "Delight of the Heart", from Sir Thomas Metcalfe's country house. An inscription at the site records that he leased the property to honeymooning couples, who came for the view of the Qutub Minar rising beside the converted tomb of Quli Khan.

The retreat stands inside the Qutb Complex in Mehrauli, South Delhi, beside the 16th-century tomb of Quli Khan that Metcalfe converted. It is not open to visitors, so plan to see it from outside while visiting the Qutb Minar and surrounding monuments. The Civil Lines town house is likewise closed, occupied by DRDO offices, and photography is not allowed there.

The property featured an underground billiards room and subterranean summer chambers called tykhanas, which provided cooling relief during Delhi's hottest months. These hidden spaces were a practical solution for coping with the region's extreme climate.