21 Long Grove, Harold Wood, Romford, RM3 0WN
About 21 Long Grove
21 Long Grove is a three-bedroom semi-detached house in Harold Wood, Romford, Romford (RM3 0WN). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to 1991-1995 and council tax band E. The latest certificate (November 2025) shows a C (score 71). When first surveyed in July 2014 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, hot-water efficiency went from Average to Good and lighting went from Very Poor to Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 83). This certificate was lodged in the last six months, so the rating reflects current condition.
At 86 m² the property is well over the postcode median (57 m² across 17 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 76% of similar EPCs). Last sold in October 2017, so it's been off the market for around 9 years. Across the public record there are 5 sales, relatively high churn for a single property. Across 1995–2017, sale prices on this property compounded at 6.8% per year. Today's modelled estimate of £484,000 is 22.5% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£427/sq ft) was about 80.7% above the typical sold price in the postcode.
Know exactly what you're buying at 21 Long Grove
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
- Bathrooms2
- Dining roomYes
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenRear
- ParkingOff street
Energy performance
The EPC has just been inspected, so the rating reflects current condition.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Roof insulation improved
More low energy lighting installed
Planning history
21 Long Grove has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 2 things worth checking at 21 Long Grove
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Signs of HMO activity in the area
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
21 Long Grove has more than quadrupled in price since its earliest registered sale in 1995.
£484,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.8% per year over 22 years.
£395,000
Growth on file: 6.8% per year over 22 years.
Sales timeline
30 October 2017Most recent
£395,000
+69.5%over 10 years5 March 2007
£233,000
+3.6%over 1 year4 April 2005
£225,000
+125.0%over 7 years28 September 1997
£100,000
+9.9%over 2 years18 July 1995
£91,000
Median price across the last 5 sales in RM3 0WN: £365,000 (2024–2021).
Nearby sales in RM3 0WN
17 Long Grove, Harold Wood, Romford, RM3 0WN
Sold Jan 2024
£395,0008 Long Grove, Harold Wood, Romford, RM3 0WN
Sold Dec 2023
£440,00013 Long Grove, Harold Wood, Romford, RM3 0WN
Sold Sept 2021
£365,00014 Long Grove, Harold Wood, Romford, RM3 0WN
Sold Sept 2021
£360,00035 Long Grove, Harold Wood, Romford, RM3 0WN
Sold Jun 2021
£355,000
Everything we know about 21 Long Grove, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby

Versus other Long Grove homes
21 Long Grove outperforms the street on floor area by a wide margin.
Price per m²
£4,593
Street avg £4,728
Floor Area
86 m²
Street avg 67 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
2.7 t/year
Street avg 2.9 t/year
Similar properties nearby
1 Aubrietia Close
RM3 0XG
1 Bennison Drive, Harold Wood
RM3 0WJ
1 Blakeborough Drive, Harold Wood
RM3 0WS
1 Chelsworth Close
RM3 0ET
1 Ashflower Drive
RM3 0FL
1 Cavell Crescent, Harold Wood
RM3 0WL
1 Cane Hill, Harold Wood
RM3 0WH
1 Archibald Road
RM3 0RD
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Sallow Road — bus stop.
Closest school
0.6 km
Ardleigh Green Junior School. 27 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
53.9dB

Night-time· 23:00 – 07:00
43.3dB