How many listed buildings are in Welwyn Hatfield? 430 listed buildings
Welwyn Hatfield has 430 listed buildings, 6 of them Grade I, and 9 conservation areas. About 10.6% of homes are in a conservation area, compared with 2.4% in the typical area of England and Wales.
- Grade I
- 6
- Grade II*
- 25
- Grade II
- 399
- Per 1,000 homes
- 9.3
- Fewer listed buildings per home than
- 62% of areas
- Conservation areas
- 9
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 Welwyn HatfieldIs a home in Welwyn Hatfield likely to be in a conservation area?
A bit more likely than in most places: about 10.6% of homes in Welwyn Hatfield are in a conservation area, compared with 11.9% across Hertfordshire and 2.4% in the typical area of England and Wales.
| Area | Share of homes |
|---|---|
| Welwyn HatfieldThis area | 10.6% |
| Hertfordshire | 11.9% |
| Typical area in England and Wales | 2.4% |
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 Welwyn Hatfield. To check a specific address, search the official list entry or ask the council.
What are the Grade I listed buildings in Welwyn Hatfield?
Welwyn Hatfield has 6 Grade I listed buildings, the highest grade.
| Building | Listed |
|---|---|
| BROCKET HALL | 1952 |
| HATFIELD HOUSE | 1952 |
| NEW SAINT LAWRENCE CHURCH | 1967 |
| NORTH MYMMS PARK WITH ADJOINING GARDEN WALLS AND HA HA | 1952 |
| Parish Church of St Etheldreda | 1966 |
| THE PALACE | 1952 |
Each name links to its official list entry.
Which conservation areas are in Welwyn Hatfield?
Welwyn Hatfield has 9 conservation areas. Welwyn Garden City has the most homes, about 3,867, and was designated in 1968.
| Conservation area | Designated | Homes inside |
|---|---|---|
| Welwyn Garden City | 1968 | 3,867 |
| Beehive | 1999 | 360 |
| Old Hatfield | 1968 | 260 |
| Welwyn | 1969 | 214 |
| Essendon | 1968 | 91 |
| Ayot St Lawrence | 1969 | 39 |
| Ayot St Lawrence | 1969 | 39 |
| Northaw Village | 1983 | 35 |
| Ayot Green | 1969 | 27 |
Homes inside are Census 2021 households in postcodes whose centre is in the area.
Are there scheduled monuments in Welwyn Hatfield?
Yes, Welwyn Hatfield has 4 scheduled monuments: nationally important sites such as earthworks, ruins and ancient buildings, protected from unauthorised change.
Which part of Welwyn Hatfield has the most listed buildings?
Hatfield has the most listed buildings of the 8 areas of Welwyn Hatfield, with 158.
| Area | Listed buildings | Per 1,000 homes | Homes in a conservation area |
|---|---|---|---|
| Hatfield | 158 | 10.8 | 1.8% |
| Welwyn | 79 | 21.1 | 5.7% |
| North Mymms | 44 | 11.8 | 0.0% |
| Essendon | 42 | — | 23.5% |
| Northaw and Cuffley | 31 | 14.1 | 1.6% |
| Ayot St Peter | 26 | — | 38.0% |
| Ayot St Lawrence | 19 | — | 86.7% |
| Woolmer Green | 8 | 13.5 | 0.0% |
A dash means the area is too small for a fair rate, or its council has not published conservation area boundaries.
What else do people ask about Welwyn Hatfield?
More quick answers on house prices, sales, areas, green space, crime, air quality and listed buildings in Welwyn Hatfield.
- What is the average house price in Welwyn Hatfield?
- When did average house prices in Welwyn Hatfield reach their peak?
- How many properties are being sold in Welwyn Hatfield?
- What type of properties are sold in Welwyn Hatfield?
- What price range do most homes sell for in Welwyn Hatfield?
- What is the most expensive (and cheapest) area of Welwyn Hatfield?
- How many parks and green spaces are in Welwyn Hatfield?
- What is the crime rate in Welwyn Hatfield?
- What's the air quality in Welwyn Hatfield?
- How do Welwyn Hatfield house prices compare with another area?
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 01:27 with the latest Land Registry data (September 2026). The Welwyn Hatfield dataset covers 4,742 postcodes.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
About·Data methodology·Buying checklist·Privacy and cookies·YouTube