How many listed buildings are in Horncastle? 118 listed buildings

Horncastle has 118 listed buildings, 6 of them Grade I, and 1 conservation area. About 16.4% of homes are in a conservation area, compared with 2.4% in the typical area of England and Wales.

Grade I
6
Grade II*
2
Grade II
110
Per 1,000 homes
34.4
More listed buildings per home than
71% of areas
Conservation areas
1

Listed buildings and scheduled monuments are counted where their map point falls; one list entry can cover a terrace or group. Per 1,000 homes uses Census 2021 households. © Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. Source: planning.data.gov.uk, Open Government Licence v3.0. How we calculate this

All house prices in Horncastle

Is a home in Horncastle likely to be in a conservation area?

A bit more likely than in most places: about 16.4% of homes in Horncastle are in a conservation area, compared with 6.2% across East Lindsey and 2.4% in the typical area of England and Wales.

Share of homes in a conservation area in Horncastle compared with other areas
AreaShare of homes
HorncastleThis area16.4%
East Lindsey6.2%
Typical area in England and Wales2.4%

In a conservation area you usually need planning permission for work that would be allowed elsewhere, such as cladding, side extensions, some roof changes and demolishing most buildings, and you must give the council six weeks' notice before cutting back or felling most trees. Some areas have extra Article 4 rules, for example on replacing windows or doors. Check with the council before you buy.

What does it mean if a home is listed?

A listed home needs listed building consent for any work that affects its character, inside or out, and doing that work without consent is a criminal offence. Grade I buildings are of exceptional interest (about 2.5% of listed buildings), Grade II* are particularly important (about 5.8%), and most, about 92%, are Grade II. One list entry can cover a whole terrace.

This page shows how common listed buildings are in Horncastle. To check a specific address, search the official list entry or ask the council.

What are the Grade I listed buildings in Horncastle?

Horncastle has 6 Grade I listed buildings, the highest grade.

Grade I listed buildings in Horncastle
BuildingListed
ROMAN WALL1987
ROMAN WALL1966
ROMAN WALL EMBEDDED IN CLINIC BUILDING1966
ROMAN WALL NOW IN LOBBY OF PUBLIC LIBRARY1966
ROMAN WALL TO REAR OF THE MANOR HOUSE1966
SECTION OF ROMAN WALL TO REAR OF NO 51966

Each name links to its official list entry.

Which conservation areas are in Horncastle?

Horncastle has 1 conservation area. Horncastle has the most homes, about 561.

Conservation areas in Horncastle
Conservation areaDesignatedHomes inside
Horncastle—561

Homes inside are Census 2021 households in postcodes whose centre is in the area.

Are there scheduled monuments in Horncastle?

Yes, Horncastle has 1 scheduled monument: nationally important sites such as earthworks, ruins and ancient buildings, protected from unauthorised change.

What else do people ask about Horncastle?

More quick answers on house prices, sales, areas, green space, crime, air quality and listed buildings in Horncastle.

Where does this data come from?

Price information is from HM Land Registry, location boundaries are from OpenStreetMap, and households and population are from Nomis Census 2021 postcode estimates (21 March 2021). Parks and green space are from OS Open Greenspace. Contains OS data © Crown copyright and database right 2026. Crime is from police.uk street-level data. Contains public sector information licensed under the Open Government Licence v3.0. Source: police.uk. Listed buildings and scheduled monuments are from Historic England and Cadw, and conservation areas from planning.data.gov.uk. © Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. Source: planning.data.gov.uk, Open Government Licence v3.0. Air quality is from Defra modelled background pollution maps. Contains public sector information licensed under the Open Government Licence v3.0. Source: Defra modelled background pollution, 2025.

Last updated 11 November 2026 at 01:34 with the latest Land Registry data (September 2026). The Horncastle dataset covers 321 postcodes.

Read our full data methodology

Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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