123a, Lawn Lane, Hemel Hempstead, HP3 9HS
About 123a
123a is a mid-terrace house in Hemel Hempstead (HP3 9HS). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (August 2024) shows a C (score 71).
At 41 m² it sits well below the postcode median (87 m² across 34 EPCs), making it one of the more compact homes locally. 2 planning records sit against the property, 0 approved, 1 refused.
Energy performance
EPC Rating
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Level 3 Building Survey
Because the property has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
A a loft conversion application was refused at 123a in 2025.
2 applications on record at 123a, Lawn Lane, Hemel Hempstead, HP3 9HS
1 live now- Sept 2025Loft ConversionFullOutcome in report
Loft conversion with dormer to rear. Roof light to front roof plane
- Documents
- 8 docs on file
- Reference
- 25/02013/FUL
- More recent applications — locked
- Loft ConversionFeb 2026Decision
Unlock 123a, Lawn Lane, Hemel Hempstead, HP3 9HS's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 2 applications on this property in full, plus 2 notable nearby
- The 17 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
123a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£188,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in HP3 9HS: £435,000 (2024–2023).
Nearby sales in HP3 9HS
Versus other Lawn Lane homes
123a is notably below the street on floor area.
EPC Rating
71 (C)
Street avg 81 (C)
Floor Area
41 m²
Street avg 73 m²
CO₂ Emissions
1.7 t/year
Street avg 1.4 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Seaton Road — bus stop.
Closest school
0.6 km
Tudor Primary School. 32 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
54.8dB

Night-time· 23:00 – 07:00
44.6dB







