  We present WISEA J114724.10$-$204021.3, a young, low-mass, high probability
member of the TW Hya association. WISEA J114724.10$-$204021.3 was discovered
based on its red AllWISE color (W1$-$W2 = 0.63 mag) and extremely red 2MASS
$J-K_{\rm S}$ color ($>$ 2.64 mag), the latter of which is confirmed with
near-infrared photometry from the VISTA Hemisphere Survey ($J-K_{\rm S}$ =
2.57$\pm$0.03). Follow-up near-infrared spectroscopy shows a spectral type of
L7 $\pm$ 1 as well as several spectroscopic indicators of youth. These include
a peaked $H$-band shape and a steeper $K$-band slope, traits typically
attributed to low surface gravity. The sky position, proper motion, and
distance estimates of WISEA J114724.10$-$204021.3 are all consistent with
membership in the $\sim$10 Myr old TW Hya association. Using the age of the TW
Hya association and evolutionary models, we estimate the mass of WISEA
J114724.10$-$204021.3 to be 5$-$13 $M_{\rm Jup}$, making it one of the youngest
and lowest mass free-floating objects yet discovered in the Solar neighborhood.
