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Grosvenor House, Flat 1, Ambrose Place, Worthing, BN11 1PZ

Listed building

Estimated value

£582,000

  • Since the 1997 sale (£60,000)+870%
  • Against BN11 1PZ's recent median (£700,000)-17%

Newest record on this page: January 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Detached
Floor 00
Bedrooms
5
Bathrooms
4
Floor area
74 m²
797 sq ft
Energy rating
D
Score 64
Council tax
Band G
Tenure
Owner Occupied
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£582,000

  • Against its 1997 sale (£60,000)+870%
  • Against BN11 1PZ's recent median (£700,000)-17%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for Grosvenor House is modelled from its 74 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in BN11 1PZ. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    74 m² from the EPC lodged in April 2025

  • Sales of this home

    1 sale recorded, the latest in 1997

  • Recent sales in BN11 1PZ

    5 sales, median £700,000 (2026–2025)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: January 2026Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

Grosvenor House's modelled value sits at over four times its earliest registered sale price (1997).

Sales timeline

  1. 31 July 1997Most recent

    £60,000

Median price across the last 5 sales in BN11 1PZ: £700,000 (2026–2025).

Risks

What this page doesn't show

2 potential issues have already been flagged for Grosvenor House, Flat 1, Ambrose Place, Worthing, BN11 1PZ. The detail, evidence and what to ask about it are in the Risks Report.
  • Signs of HMO activity in the areaIn report
  • Larger development activity nearbyIn report
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

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Overview

About Grosvenor House

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

Grosvenor House is a five-bedroom detached house in Worthing (BN11 1PZ). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to before 1900 and council tax band G. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. Other recorded features include a basement. Period features are noted in the property record. Records show the property has been extended at some point in its history. At 74 m² this is the largest unit on EPC record across Grosvenor House (39–74 m²). The building's EPC ratings span E to C across 6 units on file. The latest certificate (April 2025) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 75).

Untraded for 29 years, with the last transfer in July 1997. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 74 m² the property is well over the postcode median (51 m² across 43 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £582,000 sits 870% above the 1997 sale of £60,000. On a £-per-square-foot basis, the last sale (£75/sq ft) was about 71.6% below the postcode norm.

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
  • Bathrooms4
  • Dining roomYes
  • EnsuiteYes
  • BasementYes

Outside

  • Private gardenYes
  • ParkingYes

Building

  • Listed buildingYes
  • Period featuresYes
  • Previously extendedYes
Before you decide

Everything you need to know about Grosvenor House

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 · from £14.99

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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.
Current Certificate
Apr 2025

EPC Rating

A
B
C
D
D64
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
3.2 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 3 April 2035

8 years remaining
Planning

Planning history

Applications and permits filed against Grosvenor House, Flat 1, Ambrose Place, Worthing, BN11 1PZ, sourced from the PlanIt planning register.

Grosvenor House has no planning applications on record.

15

But the area is active

15 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

On the street

Versus other Ambrose Place homes

Four headline reads against 34 similar flats on this street, drawn from the latest EPC and Land Registry data.

Grosvenor House is notably below the street on price per m².

Price per m²

£811

Street avg £13,831

Strongly below

Floor Area

74 m²

Street avg 49 m²

Strongly above

Habitable Rooms

3 rooms

Street avg 2 rooms

Strongly above

CO₂ Emissions

3.2 t/year

Street avg 2.7 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 Worthing district page.
Full Worthing report

Rail-style transport is unusually close for this postcode.

Crime

327/mo

Rising year-on-year across the wider district.

Nearest stop

0.1 km

Library — bus stop.

Closest school

0.5 km

St Mary's Catholic Primary School. 17 schools nearby.

Nearest schools

  • St Mary's Catholic Primary SchoolPrimary486m
  • Heene CofE Primary SchoolPrimary572m
  • Homefield Primary School and SSCPrimary992m
  • St Andrew's CofE High SchoolSecondary1.0km

Nearest stops

  • LibraryBus stop69m
  • Town HallBus stop171m
  • WestbrookeBus stop262m
  • South StreetBus stop312m

Most reported crime locally

  • Violence & Sexual Offences1,682 reports32%
  • Anti-social Behaviour974 reports19%
  • Shoplifting799 reports15%
  • Public Order493 reports9%

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 BN11 1PZ from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for BN11 1PZ

Daytime· 07:00 – 23:00

53.6dB

Low
Night-time road noise heatmap for BN11 1PZ

Night-time· 23:00 – 07:00

42.5dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraGround Floor FlatEPC DPre-1919 buildListed buildingSolid (non-cavity) walls

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

From £1,085 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£255k

15a, Flat 2, Chapel Road

BN11 1EG

Flat
£248k

116a, Flat 2, Chapel Road

BN11 1BY

Flat
£243k

18a, Flat 2, Chapel Road

BN11 1BJ

Flat
£242k

18a, Flat 1, Chapel Road

BN11 1BJ

Flat
£227k

116a, Flat 1, Chapel Road

BN11 1BY

Flat
£226k

17a, Flat 1, Chapel Road

BN11 1EG

Flat
£221k

116a, Flat 3, Chapel Road

BN11 1BY

Flat
£195k

19a, Flat 4, Chapel Road

BN11 1EG

Flat

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for Grosvenor House is modelled from its 74 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in BN11 1PZ. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 1 sale is recorded for Grosvenor House. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for Grosvenor House was lodged in April 2025 at band D and is valid until April 2035. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to Grosvenor House. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 16 months, which places each incident at an approximate point. The 17 schools and 30 stops listed are measured in a straight line from BN11 1PZ, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
Grosvenor House is in council tax band G. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about Grosvenor House, Flat 1, Ambrose Place, Worthing, BN11 1PZ. Each answer is also embedded as structured data for search engines.

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