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The Annexe, 1 Gaddesden Lane, Redbourn, St Albans, AL3 7AS

Estimated value

£726,000

  • Since the 2025 sale (£1,092,500)-34%

Newest record on this page: December 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Floor area
49 m²
527 sq ft
Energy rating
D
Score 63
Council tax
Band A
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£726,000

  • Against its 2025 sale (£1,092,500)-34%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for The Annexe is modelled from its 49 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in AL3 7AS. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    49 m² from the EPC lodged in November 2015

  • Sales of this home

    1 sale recorded, the latest in 2025

  • Recent sales in AL3 7AS

    No recent sales of other homes in the postcode

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: December 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

Sales timeline

  1. 5 December 2025Most recent

    £1,092,500

Risks

What this page doesn't show

Nothing is flagged from the data on this page, but these checks are only run in the report. The detail, evidence and what to ask about it are in the Risks Report.
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

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Overview

About The Annexe

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

The Annexe is a property in Redbourn, St. Albans, St Albans (AL3 7AS). It has a recorded floor area of 49 m² (around 527 sq ft) and council tax band A. The latest certificate (November 2015) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 83), a 2-band jump. Main heating runs on electricity: electricity, unspecified tariff. The latest certificate is from November 2015, so improvements made since then won't be reflected.

Today's modelled estimate of £726,000 is 33.5% below the 2025 sale of £1,092,500, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. Most recent transfer was December 2025 at £1,092,500 — fresh data.

Before you decide

Everything you need to know about The Annexe

The true value, the hidden risks and the full sale history, in one report.

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Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

Recommended upgrades on file would lift this property by multiple EPC bands.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 05 Nov 2025

Current Certificate
Nov 2015

EPC Rating

A
B
C
D
D63
E
F
G
Main Heating
Electric & Gas
Main Fuel
Electric
Hot Water
Very Poor
Windows
Very Good
CO2 Emissions
2.2 t/year
Occupancy
—

Certificate validity

Expired on 5 November 2025

New assessment needed to sell or let
Planning

Planning history

Applications and permits filed against The Annexe, 1 Gaddesden Lane, Redbourn, St Albans, AL3 7AS, sourced from the PlanIt planning register.

The Annexe has no planning applications on record.

A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the St Albans district page.

Crime

170/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Gaddesden Lane — bus stop.

Closest school

1.2 km

Redbourn Primary School. 4 schools nearby.

Nearest schools

  • Redbourn Primary SchoolPrimary1.2km
  • Brockswood Primary SchoolPrimary2.2km
  • Holtsmere End Junior SchoolPrimary2.7km
  • Holtsmere End Infant and Nursery SchoolPrimary2.7km

Nearest stops

  • Gaddesden LaneBus stop54m
  • Church EndBus stop388m
  • Cricketers PHBus stop754m
  • Wheatlock MeadBus stop785m

Most reported crime locally

  • Violence & Sexual Offences776 reports30%
  • Anti-social Behaviour568 reports22%
  • Shoplifting208 reports8%
  • Other Theft193 reports8%

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
How the estimate is made
The estimate for The Annexe is modelled from its 49 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in AL3 7AS. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 1 sale is recorded for The Annexe. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for The Annexe was lodged in November 2015 at band D and expired in November 2025, so a new one is needed to sell or let. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to The Annexe. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 15 months, which places each incident at an approximate point. The 4 schools and 30 stops listed are measured in a straight line from AL3 7AS, not by walking route.
Council tax band
The Annexe is in council tax band A. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about The Annexe, 1 Gaddesden Lane, Redbourn, St Albans, AL3 7AS. Each answer is also embedded as structured data for search engines.

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