Flat 12, Maritime Buildings, Sunderland SR1 1BL

Semi-Detached flat · Built 1900-1929 · 48 m² · Rented (Private) · Room heaters, electric

Upgrade Plan

DC for £1,000 · £1,000 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
High-retention storage heaters£800 – £1,200£5231.9 yrs+13.6 pts · reaches C
Solid wall insulation(optional, beyond C)£4,000 – £14,000£28731.4 yrs+7.4 pts

Grants verified 20 August 2026. Costs are the register’s indicative ranges. Savings are restated at the fuel prices assumed in July 2026. Points per measure are estimated from 19.9 million certificates and rescaled to this home’s own certificate delta; the total is the register’s figure.

Running costs

£1,579
per year at grade D
£769
per year at grade C

The full plan saves £523 a year — a 52.3% annual return on £1,000.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2025, states £1,380 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

8 January 2025£40,000
22 August 2007£100,000
3 September 2004£123,000

Estimated today: £40,241 HPI-indexed estimate, not a valuation

St Thomas Street: 27 sales since 1995 · £61,055 average over 10 years

Schools nearby

The schools’ own performance — Progress 8 shows value added, not just raw results.

SchoolPhaseDistanceProgress
Hudson Road Primary SchoolPrimary0.3 mi
Dame Dorothy Primary SchoolPrimary0.6 mi
Valley Road AcademyPrimary0.9 mi
St Anthony's Girls' Catholic AcademySecondary0.7 miProgress 8 +0.09 · average (2023/24)
Thornhill AcademySecondary0.9 miProgress 8 -0.40 · below average (2023/24)
St Aidan's Catholic AcademySecondary1.0 miProgress 8 +0.37 · above average (2023/24)

Schools from the DfE register, performance from the KS4 performance tables. Progress 8 is a GCSE measure, so primaries have none. Distance is straight-line from the postcode, not a catchment: admission is decided by the school, not by us.

Area context

Police-recorded crime for the wider neighbourhood, not this address. We grade homes, never neighbourhoods — so this is reported as a count, not a rating.

148.6
crimes a month
1,635
in the last 12 months
Violence and sexual offences
most common · 24% of the total

Police.uk street-level data for LSOA E01008703, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

St Thomas Street

How this home sits against its street.

12
graded homes
57.9
average score
E
most common grade
+0.1
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.