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15 Marriott Street, Semilong, Northampton, NN2 6AW

1 planning record
Property type
Mid terrace
Habitable rooms
6
From EPC
Floor area
167 m²
1798 sq ft
Energy rating
D
Score 65
Council tax
Band D
Tenure
Private Rental
Overview

About 15 Marriott Street

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

15 Marriott Street is a mid-terrace house in Semilong, Northampton, Northampton (NN2 6AW). It has a recorded floor area of 167 m² (around 1798 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (March 2025) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in March 2020 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good and hot-water efficiency went from Poor to Good. The recommended improvements would lift it to B (score 85), a 2-band jump.

One planning record on file: HMO conversion approved in 2021. Past consents include HMO conversion, meaningful when judging how the property has evolved. At 167 m² it's 17.2% larger than the typical home in the postcode (143 m² median across 12 EPCs).

Before you decide

Everything you need to know about 15 Marriott Street

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

Signs of HMO activity in the areaLarger development activity nearby

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.

15 Marriott Street's carbon output runs well above what efficient homes in the postcode produce.

Current Certificate(1 of 2)
Mar 2025

EPC Rating

A
B
C
D
D65
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
6.6 t/year
Occupancy
Rented

Property Improvements

Changes detected from historical EPC data

Mar 2025from Mar 2020
EPC improved fromE42toD65
Hot Water
Main (No Stat)Main System

Hot water system upgraded

Roof
Very PoorGood

Roof insulation improved

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraMid-Terrace HouseEPC DPre-1919 buildSolid (non-cavity) walls

Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £955 · Includes VAT

Planning

Planning history

Applications and permits filed against 15 Marriott Street, Semilong, Northampton, NN2 6AW, sourced from the PlanIt planning register.

1 application on record at 15 Marriott Street, Semilong, Northampton, NN2 6AW

1decisions8documents37nearby
Flagged:RetrospectiveHMO conversion
  1. Oct 2021
    HMOAmendment
    Outcome in report

    Lawful Development Certificate for existing use as a House in Multiple Occupation (Use Class C4)

    Retrospective
    Documents
    8 docs on file
    Reference
    WNN/2021/0726
    Full record in report

Unlock 15 Marriott Street, Semilong, Northampton, NN2 6AW's full planning history

You're seeing the shape of it. The report has the substance.

  • Every decision — granted, refused or withdrawn (1 on record)
  • All 1 application on this property in full, plus 37 notable nearby
  • The 8 documents, officer reports & conditions
  • What the pattern means for extending or converting here
£14.99one-off · instant

One time fee only - money back guarantee

Price

Sales history & valuation

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

15 Marriott Street has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.

Current estimate

£317,000

Modelled from EPC, postcode comparables.

See how we calculated this

No sales recorded with HM Land Registry

That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.

Median price across the last 5 sales in NN2 6AW: £240,000 (2025–2016).

On the street

Versus other Marriott Street homes

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

15 Marriott Street is notably below the street on habitable rooms.

EPC Rating

65 (D)

Street avg 59 (D)

Above

Floor Area

167 m²

Street avg 182 m²

On par

CO₂ Emissions

6.6 t/year

Street avg 9.0 t/year

Above

Habitable Rooms

6 rooms

Street avg 8 rooms

Strongly below
Before you decide

Everything you need to know about 15 Marriott Street

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

Signs of HMO activity in the areaLarger development activity nearby

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.
£291k

1 Cecil Road

NN2 6PG

£283k

1 Edinburgh Road

NN2 6PH

3 bed2 bath
£274k

1 Brockton Street

NN2 6EQ

3 bed2 bath
£260k

1 Agnes Road

NN2 6EU

£231k

1 Essex Terrace, Essex Street

NN2 6DP

3 bed
£228k

1 Garfield Close

NN2 6NF

3 bed
£453k

1 Adelaide Terrace, Barrack Road

NN2 6AH

5 bed3 bath
£211k

1 Cranbrook Road

NN2 6JT

2 bed1 bath
Area

The neighbourhood at a glance

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

Crime

27/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Marriott Street — bus stop.

Closest school

0.3 km

Northampton International Academy. 31 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 NN2 6AW from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for NN2 6AW

Daytime· 07:00 – 23:00

51.1dB

Low
Night-time road noise heatmap for NN2 6AW

Night-time· 23:00 – 07:00

41.5dB

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 15 Marriott Street, Semilong, Northampton, NN2 6AW. Each answer is also embedded as structured data for search engines.