21 Bye Road, Swanwick, Southampton, SO31 7GX

21 Bye Road is a three-bedroom detached house in Swanwick, Southampton, Southampton (SO31 7GX). It has a recorded floor area of 125 m² (around 1345 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (July 2026) shows a D (score 62), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2011. Between certificates, lighting went from Very Poor to Very Good; while window efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 74). This certificate was lodged in the last six months, so the rating reflects current condition.

Across 2002–2012, sale prices on this property compounded at 2.9% per year. Today's modelled estimate of £470,000 sits 80.8% above the 2012 sale of £260,000. On a £-per-square-foot basis, the last sale (£193/sq ft) was about 20.3% below the postcode norm. On the market in February 2012 and unlisted since — roughly 14 years. Across the public record there are 4 sales, relatively high churn for a single property. 2 planning records sit against the property, 0 approved, 0 refused.