8 Bertha Street, Ferryhill, DL17 8AZ

UPRN:100110469352Mid Terrace House2 bedsBuilt 1900-1929

FreeholdCouncil Tax: -EPC: C (72)AI-Powered Intelligence

Data freshness:Listing· freshPlanning· 2mo agoEPC· 3mo agoRisk· 2mo agoConnectivity· 2mo agoSchools· 2mo agoAmenities· 2mo agoArea· Census 2021

Location map - no listing photos available

HP Score

/ 100

High Potential

Verdict

yesterday

BUY
Strong overall fundamentals
INVESTIGATE
Some risks
AVOID
High risk factors

Confidence

High

Sale Estimate

£57,000

£54k - £60kHigh

Estimate

£57k

Range

£54k – £60k

Rent Estimate (pcm)

£450

£450 - £500Medium

Monthly

£450

Yield

2.82%

AI Verdict

Derived from HomePortfolio scores

AI summary

8 Bertha Street earns a BUY rating with HP Score 82/100. Investment score 77/100 reflects strong fundamentals. Crime intensity is low. Walkability is excellent (89/100). Flood risk is rated very low. Tenure is freehold. Verdict and headline figures are derived from the live HomePortfolio API; narrative deep-dives below combine real signals with modelled analytics.

Key SourcesEPC RegisterZoopla ListingsHP Property IntelligenceOfcom Connected NationsMobile Coveragevalue historyplanning signalsgaz salesHP Walkability v2ONS Census 2021Police.ukPlanIt / LA PortalsHMLR CCODHMLR CovenantsHMLR Price PaidEnvironment Agency RoFRaSDefra Noise MapOSM AmenitiesOfsted / GIAS

HP Score

82/ 100

High

Investment Score

77/ 100

High

Crime Score

25/ 100

Moderate

Walkability

89/ 100

Excellent

Transit & Bike

Excellent

Real Data

Opportunity

Why this could be an opportunity

High confidence3 independent sourcesListing checked 20 Aug 2026

Every component scored, and three or more independent sources agree.

Valuation edge32.5/40
claims [AVM +29.8% (HIGH), sold-comps +11.1%, £/sqft +10.4%] → consensus +10.4% → credited 2.4% after backtest shrinkage; corroborated: AVM and sold-evidence family agree
- zoopla_valuationsestimate for 100110469352· as of 11 Aug 2026
- property_comparablessold-evidence family (implied value + £/sqft): 10 comps, dispersion 16.1%· as of 16 Aug 2026
Rental economics29.3/30
gross yield 13.5%; range width penalty ×0.98
- zoopla_valuationsrent estimate 450/mo (range 450-500)· as of 11 Aug 2026· verify before relying on this
Seller motivation0/20
0 price cut(s), 37 days on market; calibration: cuts mark staleness, credited as negotiation context only
- zoopla_listingsprice_changes + first_published_date· as of 20 Aug 2026
Risk & liquidity9.7/10
246 sales/12mo in area; valuation range width 11%
- property_intelligencetransactions_12mo

4 of 4 components scored. Calibrated against 6,141 realised listing→HMLR-sale outcomes, estimates taken as-of listing month. A large discount from one source alone is capped - independent sources must agree before it counts fully.

Economics

What happens to your money

Price sensitivityScores 70+ up to £46,000

£30,000£46,000

The same scorer re-run at hypothetical asking prices, holding rent, comps and listing history constant. Not a prediction of what the seller would accept.

Your assumptions

Purchase price£39,995

At the asking price

Monthly rent£450/mo

Evidenced range £450-£500

Interest rate5.4%

Loan to value75%

Cash required: £13,299
Net cash flow: £177/mo
Cash on cash: 15.9%
Score at this price: 72

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 3.33 - clears the usual 1.25 test. These are your assumptions, not evidence: only the pre-filled rent and price come from the record.

Evidence

Where every number comes from

zoopla_valuationsestimate for 100110469352Valuation edge · as of 11 Aug 2026
property_comparablessold-evidence family (implied value + £/sqft): 10 comps, dispersion 16.1%Valuation edge · as of 16 Aug 2026
zoopla_valuationsrent estimate 450/mo (range 450-500)Rental economics · as of 11 Aug 2026
zoopla_listingsprice_changes + first_published_dateSeller motivation · as of 20 Aug 2026
property_intelligencetransactions_12moRisk & liquidity

Sold comparables in depth Valuation methodology

Risks

What could kill this deal

Rental economics needs verification before you rely on it
rent estimate 450/mo (range 450-500)

Property risk deep-dive →flood, subsidence, crime, environment - the full domain

Plan

Before you offer

1. Get two written rental appraisals from local lettings agents.
The rent estimate rests on area-level evidence, not lettings on this street.
2. Set your walk-away price before viewing - above £46,000 the deal stops scoring well.
Computed by re-running the score at higher prices.
3. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Every step above was generated from a specific gap or flag in the evidence - no generic advice, no invented tasks.

Valuation & Market

Sale Estimate£57,000

Rent Estimate (pcm)£450

Gross Yield2.82%

1y Growth-5.0%

3y Growth+9.2%

5y Growth+10.1%

10y Growth+2.0%

Last Sold Price£59,995 (2024-10-25)

View Market Details

Risk Overview

Flood RiskVery low
Subsidence1
RadonLow
MiningUnknown
Landslide1
Air QualityUnknown
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0DL17 8AZ

Approval Rate

-12mo

Development

low

DM/26/02125/FPA
Conservatory to western elevation
Pending
DM/26/01998/FPA
Single storey rear extension
Pending
DM/26/01991/FPA
Demolition of existing extensions and replacement single storey rear extension
Pending

View Planning Timeline

Ownership

Corporate Ownership87.9%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change2024-10-25
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

20 Mbps

Mobile 4G/5G Coverage

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median Household Income£29,393

Population Density-

Owner Occupied45%

Age Distribution

0-15 18%16-64 65%65+ 17%

View Area Profile

Schools Nearby

The Woodlands
0.2 mi
-
Broom Cottages Primary & Nursery School
0.2 mi
Good
Cleves Cross Primary and Nursery School Academy
0.5 mi
Area grades2024
Inspected after Ofsted withdrew the single overall grade.
Dean Bank Primary and Nursery School
0.6 mi
Requires improvement

3 of 12 nearby schools with published figures were oversubscribed in 2025 - demand, not a catchment.

View All Schools

Comparables

View All

17 Bertha Street
-
£55k
-
25 Bertha Street
-
£52k
-
28 Bertha Street
-
£41k
-
15 Bertha Street
-
£40k
-

Boundary data not available for this property

No registered title polygon, building footprint, or street match for this property yet.

Why: No HMLR INSPIRE / OSM footprint / OS Open USRN match for this UPRN

Source: HM Land Registry INSPIRE / OpenStreetMap / OS Open USRN