21 Sibley Avenue, AL5 1HF
Sold prices, property history and local context for 21 Sibley Avenue, Harpenden, AL5 1HF, from HM Land Registry and EPC records.
21 Sibley Avenue, in AL5, is a freehold detached house on Sibley Avenue. It last sold for £395,000 in 2007 — its 2nd recorded sale, up 266% on its first recorded sale of £108,000 in 1999. That price sits 47% below the £750,000 median for AL5 over the last 8 years.
Get the full £5 report — a precise comparables-based valuation, EPC & running costs, flood/mining risk, planning activity, schools, crime and more, for this exact home.
What might it be worth now?
An indicative range from carrying the 2007 sale forward at this home's own historical growth rate — not a formal valuation.
Based on this home's own compounded sale-price growth (16.9% a year between its recorded sales), projected from its last sale. It can't see improvements, condition or anything specific to the property — the £5 report values it against individual comparable sales instead.
Sale history for 21 Sibley Avenue
Every transaction recorded by HM Land Registry for this address, newest first.
Other homes at AL5 1HF
Recorded sales for the other addresses sharing this postcode on Sibley Avenue.
The street and the area
Where 21 Sibley Avenue sits in its local market.
21 Sibley Avenue: quick answers
From HM Land Registry, EPC and VOA records.
21 Sibley Avenue last sold for £395,000 on 6 Jul 2007, according to HM Land Registry.
HM Land Registry records 2 sales for 21 Sibley Avenue between 1999 and 2007. Sales before 1995 are not in the public dataset.
Carrying its 2007 sale price forward with its own compounded sale-price growth of 16.9% a year across 2 sales suggests roughly £5,843,000–£9,739,000 as of 2026. This is indicative only — the full report values it against individual comparable sales.
Get the full £5 report — a precise comparables-based valuation, EPC & running costs, flood/mining risk, planning activity, schools, crime and more, for this exact home.
Contains HM Land Registry data © Crown copyright and database right 2026. EPC data © Crown copyright. Council tax band from the Valuation Office Agency. Licensed under the Open Government Licence v3.0. Sales before 1995 are not in the public dataset. Figures describe recorded transactions and are not a valuation of this home; the indicative range is a district-level projection, not a survey or appraisal.