Model valuation£417,0008 Busby Close
Local market context
12a, King Harry Lane, St Albans, AL3 4AR
Swimming pool4 planning records
Estimated value
£3,078,000
- Since the 2021 sale (£1,795,000)+71%
- Against AL3 4AR's recent median (£850,000)+262%
Newest record on this page: April 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.
Property type
Detached
Bedrooms
6
Bathrooms
5
Floor area
357 m²
3843 sq ft
Energy rating
D
Score 66
Council tax
Band H
Tenure
Owner Occupied
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
£3,078,000
- Against its 2021 sale (£1,795,000)+71%
- Against AL3 4AR's recent median (£850,000)+262%
Your note and figure are shown publicly on this page.
How the estimate is made
The estimate for 12a is modelled from its 357 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in AL3 4AR. 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
357 m² from the EPC lodged in April 2026
Sales of this home
1 sale recorded, the latest in 2021
Recent sales in AL3 4AR
5 sales, median £850,000 (2014–2010)
This page or the full report?
| Data | This page | Full report |
|---|---|---|
| Sales | Latest sale shown: June 2021 | Latest available records, read when you order |
| Valuation | Estimate from the last refresh | Analysed against comparable sales |
| Planning | 1 of 4 applications | Full history, plus nearby schemes |
| Flood risk | Not shown | Included |
Sales history & valuation
Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.
Latest sale on 12a was the highest on Land Registry record across the postcode.
Sales timeline
15 June 2021Most recent
£1,795,000
Median price across the last 5 sales in AL3 4AR: £850,000 (2014–2010).
Nearby sales in AL3 4AR
12 King Harry Lane, St Albans, AL3 4AR
Sold Nov 2014
£1,200,00022 King Harry Lane, St Albans, AL3 4AR
Sold Feb 2011
£790,0003 Kingsgate, King Harry Lane, St Albans, AL3 4AR
Sold Jan 2011
£850,0006 King Harry Lane, St Albans, AL3 4AR
Sold Dec 2010
£650,00018 King Harry Lane, St Albans, AL3 4AR
Sold Apr 2010
£1,300,000
What this page doesn't show
1 potential issue has already been flagged for 12a, King Harry Lane, St Albans, AL3 4AR. The detail, evidence and what to ask about it are in the Risks Report.
- Larger development activity nearbyIn 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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About 12a
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
12a is a six-bedroom detached house in St Albans (AL3 4AR). It has a recorded floor area of 357 m² (around 3843 sq ft), construction records dating it to 2003-2006 and council tax band H. There is a swimming pool on the plot, uncommon for the area. Other recorded features include outbuildings. The latest certificate (April 2026) shows a D (score 66), on the cusp of jumping into the C band. Earlier certificates rated it C (June 2015); the latest reading is one band lower. Between certificates, window efficiency dropped from Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition.
At 357 m² the property is well over the postcode median (178 m² across 7 EPCs), placing it in the larger end of the local stock. 6 bedrooms is on the larger side for this postcode, where 4 is the typical count. Today's modelled estimate of £3,078,000 sits 71.5% above the 2021 sale of £1,795,000. On a £-per-square-foot basis, the last sale (£467/sq ft) was about 37.1% above the typical sold price in the postcode. 4 planning records sit against the property, 1 approved, 0 refused. Sold June 2021 for £1,795,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
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
- Bedrooms6
- Bathrooms5
- Dining roomYes
- EnsuiteYes
- StudyYes
Outside
- ParkingOff street
- OutbuildingsYes
- Swimming poolYes
Before you decide
Everything you need to know about 12a
The true value, the hidden risks and the full sale history, in one report.
Larger development activity nearby
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The data behind every report
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
12a's carbon output runs well above what efficient homes in the postcode produce.
Current Certificate(1 of 2)
Apr 2026
EPC Rating
A
B
C
D
D66
E
F
G
Main Heating
Electric & Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
8.8 t/year
Occupancy
Owner Occupied
Certificate validity
Valid until 20 April 2036
Property Improvements
Changes detected from historical EPC data
Apr 2026from Jun 2015
EPC improved fromC73toD66
Ventilation
NaturalMVHR
MVHR (mechanical ventilation with heat recovery) installed
Planning history
Applications and permits filed against 12a, King Harry Lane, St Albans, AL3 4AR, sourced from the PlanIt planning register.
4 applications on record at 12a, King Harry Lane, St Albans, AL3 4AR
4decisions36documents3nearby
- Apr 2015RenovationOutlineOutcome in report
Installation of 3 roof lights
- Documents
- 5 docs on file
- Reference
- 5/2015/0426
- More recent applications — locked
- Tree WorksJan 2024Decision
- OutbuildingJan 2024Decision
+ 1 more application in the report
Unlock 12a, King Harry Lane, St Albans, AL3 4AR's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (4 on record)
- All 4 applications on this property in full, plus 3 notable nearby
- The 36 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Versus other King Harry Lane homes
Four headline reads against 7 similar houses on this street, drawn from the latest EPC and Land Registry data.
Years Held for 12a lags the street by a wide margin.
Price per m²
£5,028
Street avg £5,519
Floor Area
357 m²
Street avg 184 m²
Habitable Rooms
12 rooms
Street avg 9 rooms
CO₂ Emissions
8.8 t/year
Street avg 9.0 t/year
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.
Rail-style transport is unusually close for this postcode.
Crime
170/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
St Columba's College — bus stop.
Closest school
0.5 km
Prae Wood Primary School. 25 schools nearby.
Nearest schools
- Prae Wood Primary SchoolPrimary496m
- The Marlborough Science AcademySecondary600m
- The Abbey Church of England Voluntary Aided Primary School, St AlbansPrimary837m
- St Adrian Roman Catholic Primary SchoolPrimary875m
Nearest stops
- St Columba's CollegeBus stop114m
- Cardinal GroveBus stop152m
- Recreation Ground PathBus stop262m
- Mortimer CrescentBus stop286m
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.
Get a survey for this property
Level 3 Building Survey
21st centuryDetached HouseEPC DDetached over 300m²Extended multiple times (2+ extensions)Permanent outbuildings
Because the property is a large detached home over 300m², has been extended more than once, and has permanent outbuildings, we believe a Level 3 building survey should be considered.
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
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Start your researchHow 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 12a is modelled from its 357 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in AL3 4AR. 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 12a. 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 12a was lodged in April 2026 at band D and is valid until April 2036. 2 certificates are on record, which shows how the home has changed.
- Planning records
- Planning applications are collected from local authority registers through PlanIt. 4 applications are matched to 12a. 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 25 schools and 30 stops listed are measured in a straight line from AL3 4AR, not by walking route.
- Council tax band
- 12a is in council tax band H. 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.
Common questions
The questions buyers, sellers and homeowners most often ask about 12a, King Harry Lane, St Albans, AL3 4AR. Each answer is also embedded as structured data for search engines.
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Keep exploring
- Every home in AL3 4ARSold prices, values and energy ratings for the postcode
- AL 3 property marketPrices, postcodes, schools and transport across the district
- 12a, King Harry Lane, St Albans valuationHow the estimate is built and what moves it
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