15a, Parliament Road, Middlesbrough, TS1 4JP

15a is a one-bedroom end-of-terrace house in Middlesbrough (TS1 4JP). It has a recorded floor area of 35 m² (around 377 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (October 2020) shows an E (score 54), well below the UK norm with real room to improve. When first surveyed in October 2008 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Average and lighting went from Average to Very Good; while main heating dropped from Average to Very Poor. The recommended improvements would lift it to C (score 76), a 2-band jump. Main heating runs on electricity. At 35 m² this is the 5th smallest of 22 units on EPC record in the building, where floor areas span 28–123 m². The building's EPC ratings span E to B, with this unit at the bottom.

Across 2005–2009, sale prices on this property compounded at 27.4% per year. Today's modelled estimate of £131,000 is 20.6% below the 2009 sale of £165,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£438/sq ft) was about 653.6% above the typical sold price in the postcode. Untraded for 17 years, with the last transfer in June 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales.