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21 Roestock Gardens, Colney Heath, St Albans, AL4 0QJ

Extendable1 planning record
Property type
Semi-detached
Bedrooms
3
Bathroom
1
Floor area
82 m²
883 sq ft
Energy rating
D
Score 63
Council tax
Band E
Tenure
Owner Occupied
Overview

About 21 Roestock Gardens

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

21 Roestock Gardens is a three-bedroom semi-detached house in Colney Heath, St. Albans, St Albans (AL4 0QJ). It has a recorded floor area of 82 m² (around 883 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (January 2026) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in July 2020 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Good to Very Good and lighting went from Good to Very Good. The recommended improvements would push it to C (score 77). This certificate was lodged in the last six months, so the rating reflects current condition. It has already been extended once and our model flags further extension potential, a sign of buyer flexibility.

Today's modelled estimate of £663,000 is 33.9% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£561/sq ft) was about 52.1% above the typical sold price in the postcode. At 82 m² it's 16.3% smaller than the typical home in the postcode (98 m² median across 20 EPCs). Sold September 2020 for £495,000. One historical planning record sits against the property in 2022.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms3
  • Bathrooms1
  • Dining roomYes

Outside

  • Private gardenYes
  • GarageYes

Building

  • Previously extendedYes
  • Extension potentialPossible
Before you decide

Everything you need to know about 21 Roestock Gardens

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

Larger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

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.

The EPC has just been inspected, so the rating reflects current condition.

Current Certificate(1 of 2)
Jan 2026

EPC Rating

A
B
C
D
D63
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
3.3 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Jan 2026from Jul 2020
EPC improved fromE52toD63
Roof
GoodVery Good

Roof insulation improved

Low Energy Lighting
64%100%

More low energy lighting installed

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraSemi-Detached HouseEPC DPre-1919 buildSolid (non-cavity) walls

Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £1,155 · Includes VAT

Planning

Planning history

Applications and permits filed against 21 Roestock Gardens, Colney Heath, St Albans, AL4 0QJ, sourced from the PlanIt planning register.

Planning history includes recorded demolition works, indicating a major rebuild phase at this address.

1 application on record at 21 Roestock Gardens, Colney Heath, St Albans, AL4 0QJ

1decisions1extensions9documents3nearby
Flagged:Demolition
  1. Feb 2022
    DemolitionFull
    Outcome in report

    Extension: Part single, part two storey · Side and rear of property

    Demolition of existing rear extension and construction of part single, part two storey rear extension and single storey side extension (amended plans)

    Extension
    Documents
    9 docs on file
    Reference
    5/2021/2726
    Full record in report

Unlock 21 Roestock Gardens, Colney Heath, St Albans, AL4 0QJ's full planning history

You're seeing the shape of it. The report has the substance.

  • Every decision — granted, refused or withdrawn (1 on record)
  • All 1 application on this property in full, plus 3 notable nearby
  • The 9 documents, officer reports & conditions
  • What the pattern means for extending or converting here
£14.99one-off · instant

One time fee only - money back guarantee

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

The latest sale landed in the post-pandemic price surge — useful context when reading the figure.

Current estimate

£663,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2020)

£495,000

Recorded with HM Land Registry.

Sales timeline

  1. 21 September 2020Most recent

    £495,000

Median price across the last 5 sales in AL4 0QJ: £725,000 (2025–2023).

On the street

Versus other Roestock Gardens homes

Four headline reads against 20 similar houses on this street, drawn from the latest EPC and Land Registry data.

CO₂ Emissions for 21 Roestock Gardens runs comfortably ahead of the street norm.

Price per m²

£6,037

Street avg £5,423

Above

Floor Area

82 m²

Street avg 101 m²

Below

Habitable Rooms

5 rooms

Street avg 6 rooms

Below

CO₂ Emissions

3.3 t/year

Street avg 4.8 t/year

Strongly above
Before you decide

Everything you need to know about 21 Roestock Gardens

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

Larger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

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
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£612k

1 Chestnut Drive

AL4 0EP

3 bed
£726k

1 Barley Mow Lane

AL4 0RS

3 bed3 bath
£733k

1 Central Drive

AL4 0UU

3 bed1 bath
£523k

1 Bennetts Close, Colney Heath

AL4 0PU

3 bed1 bath
£726k

1 Coopers Gate, Colney Heath

AL4 0ND

4 bed
£320k

1 Cedarwood Drive

AL4 0DX

3 bed
£843k

1 Chivenor Place

AL4 0AD

4 bed2 bath
£849k

1 Boissy Close, Colney Heath Lane

AL4 0UE

4 bed3 bath
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.
Full St Albans report

Reported crime in the wider district is trending notably upward year-on-year.

Crime

4/mo

Rising year-on-year across the wider district.

Nearest stop

0.3 km

Roestock Lane — bus stop.

Closest school

1.1 km

Colney Heath Junior Mixed Infant and Nursery School. 9 schools nearby.

Go deeper on the local area

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

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21 Roestock Gardens, Colney Heath, St Albans, AL4 0QJ. Each answer is also embedded as structured data for search engines.