15 Bay View Crescent, Swansea, SA1 4LP

15 Bay View Crescent is a mid-terrace house in Swansea (SA1 4LP). It has a recorded floor area of 46 m² (around 495 sq ft) and construction records dating it to 1900-1929. The latest certificate (January 2021) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 5 certificates since March 2010. Between certificates, lighting went from Average to Very Good; while wall efficiency dropped from Poor to Very Poor and hot-water efficiency dropped from Good to Average. The recommended improvements would push it to C (score 76). At 46 m² this is the 3rd smallest of 17 units on EPC record in the building, where floor areas span 27–196 m². The building's EPC ratings span F to C across 17 units on file.

At 46 m² it sits well below the postcode median (117 m² across 16 EPCs), making it one of the more compact homes locally. Across 1998–2017, sale prices on this property compounded at 7.8% per year. Today's modelled estimate of £261,000 is 15.5% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£456/sq ft) was about 424.7% above the typical sold price in the postcode. Last changed hands 9 years ago, in October 2017.