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Keystone House, Hall Lane, Roydon, Diss, IP22 5XL

Property type
Detached
Bedrooms
5
Bathrooms
3
Floor area
262 m²
2820 sq ft
Energy rating
E
Score 46
Tenure
Owner Occupied
Overview

About Keystone House

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

Keystone House is a five-bedroom detached house in Roydon, Diss, Diss (IP22 5XL). It has a recorded floor area of 262 m² (around 2820 sq ft) and construction records dating it to 1930-1949. The latest certificate (November 2022) shows an E (score 46), well below the UK norm with real room to improve. Earlier certificates rated it D (June 2012); the latest reading is one band lower. Between certificates, lighting went from Average to Very Good; while hot-water efficiency dropped from Average to Poor and main heating dropped from Average to Poor. The recommended improvements would lift it to C (score 74), a 2-band jump. Main heating runs on oil. Other recorded features include a conservatory and outbuildings.

At 262 m² the property is well over the postcode median (130 m² across 9 EPCs), placing it in the larger end of the local stock. 5 bedrooms is on the larger side for this postcode, where 3 is the typical count. Across 2014–2023, sale prices on this property compounded at 3.3% per year. Last sale on file: £625,000 in June 2023.

Before you offer

Know exactly what you're buying at Keystone House

Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.

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Valuation

against the asking price

Risks

planning & flood

Sold prices

similar homes nearby

Trends

the local market

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

  • Bedrooms5
  • Bathrooms3
  • Dining roomYes
  • Utility roomYes
  • EnsuiteYes
  • ConservatoryYes

Outside

  • Private gardenYes
  • GarageYes
  • OutbuildingsYes
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

Keystone House's carbon output runs well above what efficient homes in the postcode produce.

Current Certificate(1 of 2)
Nov 2022

EPC Rating

A
B
C
D
E
E46
F
G
Main Heating
Gas
Main Fuel
Oil
Hot Water
Poor
Windows
Average
CO2 Emissions
14.0 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Nov 2022from Jun 2012
EPC improved fromD55toE46
Hot Water
AveragePoor

Hot water efficiency decreased

Low Energy Lighting
40%79%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against Keystone House, Hall Lane, Roydon, Diss, IP22 5XL, sourced from the PlanIt planning register.

Keystone House has no planning applications on record.

The full report still covers planning activity across the surrounding area.

Price

Sales history & valuation

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

Keystone House valuation sits well clear of the typical sold price in this postcode.

Current estimate

£671,000

Modelled from EPC, postcode comparables and a sale-price growth of 3.3% per year over 9 years.

See how we calculated this
Last sold (2023)

£625,000

Growth on file: 3.3% per year over 9 years.

Sales timeline

  1. 19 June 2023Most recent

    £625,000

    +33.0%over 8 years
  2. 17 August 2014

    £470,000

Median price across the last 5 sales in IP22 5XL: £420,000 (2024–2016).

Before you offer

Everything we know about Keystone House, 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?
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Preview of the full property report
On the street

Versus other Hall Lane homes

Four headline reads against 9 similar houses on this street, drawn from the latest EPC and Land Registry data.

On floor area, Keystone House stands well clear of the street.

Price per m²

£2,385

Street avg £2,841

Below

Floor Area

262 m²

Street avg 212 m²

Strongly above

Habitable Rooms

8 rooms

Street avg 7 rooms

Above

CO₂ Emissions

14.0 t/year

Street avg 11.4 t/year

Below
Area

The neighbourhood at a glance

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

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

Crime

2/mo

Steady year-on-year across the wider district.

Nearest stop

1.5 km

Old Dick Junction — bus stop.

Closest school

1.3 km

Roydon Primary School. 4 schools nearby.

Go deeper on the local area

The full 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 IP22 5XL from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for IP22 5XL

Daytime· 07:00 – 23:00

48.6dB

Low
Night-time road noise heatmap for IP22 5XL

Night-time· 23:00 – 07:00

41.0dB

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 Keystone House, Hall Lane, Roydon, Diss, IP22 5XL. Each answer is also embedded as structured data for search engines.