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21 Grantham Avenue, Hamble, Southampton, SO31 4JX

3 sales on record
Property type
Detached
Floor Ground
Bedrooms
2
Floor area
74 m²
797 sq ft
Energy rating
D
Score 61
Council tax
Band B
Tenure
Social Rental
Overview

About 21 Grantham Avenue

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

21 Grantham Avenue is a two-bedroom detached house in Hamble, Southampton, Southampton (SO31 4JX). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1967-1975 and council tax band B. The latest certificate (September 2017) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 5 certificates since September 2011. Between certificates, lighting went from Poor to Very Good. The recommended improvements would push it to C (score 74). Main heating runs on electricity. At 74 m² this is the 9th smallest of 32 units on EPC record in the building, where floor areas span 46–143 m². The building's EPC ratings span E to C across 32 units on file.

It hasn't traded since July 2000, a hold of 26 years that's notably long for the area. Across 1996–2000, sale prices on this property compounded at -5.3% per year. Today's modelled estimate of £165,000 sits 428% above the 2000 sale of £31,250. On a £-per-square-foot basis, the last sale (£39/sq ft) was about 78.9% below the postcode norm.

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

  • Bedrooms2

Outside

  • ParkingYes

Building

  • Central heatingYes
Before you decide

Everything you need to know about 21 Grantham Avenue

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

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.
Current Certificate(1 of 5)
Sept 2017

EPC Rating

A
B
C
D
D61
E
F
G
Main Heating
Electric
Main Fuel
Electric
Hot Water
Average
Windows
Average
CO2 Emissions
4.7 t/year
Occupancy
Rented

Property Improvements

Changes detected from historical EPC data

Nov 2012from Sept 2011
Low Energy Lighting
22%50%

More low energy lighting installed

May 2015from Nov 2012
Low Energy Lighting
50%88%

More low energy lighting installed

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Late 20th centuryGround Floor FlatEPC DNo mains gas

Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.

From £820 · Includes VAT

Planning

Planning history

Applications and permits filed against 21 Grantham Avenue, Hamble, Southampton, SO31 4JX, sourced from the PlanIt planning register.

21 Grantham Avenue has no planning applications on record.

2

But the area is active

2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

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

Latest sale on 21 Grantham Avenue was the lowest on Land Registry record across the postcode.

Current estimate

£165,000

Modelled from EPC, postcode comparables and a sale-price growth of -5.3% per year over 4 years.

See how we calculated this
Last sold (2000)

£31,250

Growth on file: -5.3% per year over 4 years.

Sales timeline

  1. 6 July 2000Most recent

    £31,250

    -42.1%over 1 year

  2. 6 November 1998

    £53,950

    +40.1%over 2 years

  3. 17 September 1996

    £38,500

Median price across the last 5 sales in SO31 4JX: £190,000 (2024–2020).

On the street

Versus other Grantham Avenue homes

Four headline reads against 15 similar flats on this street, drawn from the latest EPC and Land Registry data.

Price per m² for 21 Grantham Avenue lags the street by a wide margin.

Price per m²

£422

Street avg £1,974

Strongly below

Floor Area

74 m²

Street avg 74 m²

On par

Habitable Rooms

3 rooms

Street avg 3 rooms

On par

CO₂ Emissions

4.7 t/year

Street avg 2.7 t/year

Strongly below
Before you decide

Everything you need to know about 21 Grantham Avenue

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

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.
£239k

1 Alexandra Court, Deanfield Close, Hamble

SO31 4BG

2 bed1 bath
£271k

1 Chalmers Way, Hamble

SO31 4LR

2 bed1 bath
£306k

1 Admirals Court, Hamble

SO31 4LT

2 bed2 bath
£206k

1 Barton Drive, Hamble

SO31 4RG

1 bed1 bath
£276k

1 Hardwicke Way, Hamble

SO31 4LN

3 bed
£405k

1 Flowers Close, Hamble

SO31 4LU

3 bed1 bath
£449k

1 Broad Way, Hamble

SO31 4BT

3 bed1 bath
£510k

1 Liberty Row, Meadow Lane, Hamble

SO31 4RR

3 bed
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Southampton district page.
Full Southampton report

Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.

Crime

4/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Beaulieu Road — bus stop.

Closest school

0.5 km

Hamble Primary School. 7 schools nearby.

Go deeper on the local area

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

Noise

Road noise across the postcode

Modelled day and night-time noise levels around SO31 4JX from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for SO31 4JX

Daytime· 07:00 – 23:00

46.1dB

Low
Night-time road noise heatmap for SO31 4JX

Night-time· 23:00 – 07:00

37.8dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21 Grantham Avenue, Hamble, Southampton, SO31 4JX. Each answer is also embedded as structured data for search engines.