20 First Avenue, Grimsby, DN33 1DA
About 20 First Avenue
20 First Avenue is a four-bedroom semi-detached house in Grimsby (DN33 1DA). It has a recorded floor area of 99 m² (around 1066 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (August 2022) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in September 2009 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Poor to Good, window efficiency went from Average to Good and lighting went from Poor to Very Good; while wall efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 87), a 2-band jump. Our model identifies extension potential, subject to local planning policy.
Across 2006–2025, sale prices on this property compounded at -0.7% per year. Today's modelled estimate of £124,000 sits 106.7% above the 2025 sale of £60,000. On a £-per-square-foot basis, the last sale (£56/sq ft) was about 33.8% above the typical sold price in the postcode. Most recent transfer was June 2025 at £60,000 — fresh data.
Know exactly what you're buying at 20 First Avenue
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms4
- Bathrooms2
Outside
- Private gardenYes
Building
- Extension potentialPossible
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Loft insulation upgraded to recommended levels
Window efficiency improved
More low energy lighting installed
Planning history
20 First Avenue has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
Sales history & valuation
20 First Avenue's sale-price growth has lagged the wider UK trajectory across its history on file.
£124,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.7% per year over 19 years.
£60,000
Growth on file: -0.7% per year over 19 years.
Sales timeline
26 June 2025Most recent
£60,000
-20.0%over 17 years31 January 2008
£75,000
+8.7%over 1 year1 November 2006
£69,000
Median price across the last 5 sales in DN33 1DA: £77,000 (2025–2011).
Everything we know about 20 First Avenue, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other First Avenue homes
Years Held for 20 First Avenue lags the street by a wide margin.
Price per m²
£606
Street avg £662
Floor Area
99 m²
Street avg 99 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
3.9 t/year
Street avg 4.1 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Walton Grove — bus stop.
Closest school
0.3 km
TEC Partnership. 25 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
51.9dB

Night-time· 23:00 – 07:00
42.1dB