The Old Mill Mill Lane Portbury Bristol BS20 7UA Data via plota.co.uk

26/P/1192/LBC - Listed Building Consent Approved

Proposal

Listed Building Consent for the installation of an external twin-wall flue system and internal wood burning stove. Works to include the formation of opening through existing brick infill, installation of supporting wall brackets and flue terminal alongside associated internal stove connection works. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
4 Jun 2026
✓
Approved
12 Aug 2026

Approved on 12 Aug 2026 · Delegated Decision · Last checked 13 Aug 2026

Site constraints 8

Grade II listed: Portbury Mill Ye Olde Mill
List entry 1146423 · The pin is inside its outline
Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Historic England ↗
Green belt: Bath and Bristol
Inappropriate development needs very special circumstances.
Green belt policy allows a short list of exceptions, such as limited extensions and replacement buildings. Anything else needs very special circumstances that clearly outweigh the harm. Some green belt land can count as grey belt, where it does not strongly serve the green belt's purposes. The council decides this in its green belt assessment or on each application, so we do not mark it here.
Read the government guidance ↗
Agricultural land, grade 3b
Not best and most versatile land (grades 1, 2 and 3a). Source: the Predictive Agricultural Land Classification Map (Defra and Natural England, 2025; the Welsh Government's Predictive ALC Map 2 in Wales), a model rather than a site survey. Natural England's Provisional ALC map (1:250,000, 1970s) agrees.
Where development of farmland is needed, policy prefers poorer land over the best and most versatile (grades 1, 2 and 3a). Three sources: Natural England's post-1988 field surveys, which are definitive where they exist; the Defra predictive map for England (2025) and the Welsh Government predictive map, modelled from the soil map with 3a and 3b split; and the 1970s provisional map, which planners and other services still show, coarser and with grade 3 undivided. Where the provisional and predicted grades disagree, treat the predicted grade as the current estimate and expect an application to carry its own survey.
Scheduled monument 65 m away: Slight univallate hillfort on Conygar Hill
Its setting is a consideration for work nearby.
Nationally important archaeology protected by the Secretary of State. Work that affects the monument or its setting is rarely permitted.
Historic England ↗
National infrastructure project 578 m away: Hinkley Point C Connection
The site is 578 m from the project boundary. Electricity line, decided. The project page says whether consent was granted. Also within 2 km: Portishead Branch Line - MetroWest Phase 1 (decided, 628 m); Hinkley Point C Connection Project Material Change (at pre-application, 801 m).
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
Habitat network: Network Expansion Zone
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Radon affected area, class 4; Priority habitat 26 m away: Lowland calcareous grassland.
Not affected
Outside flood zones 2 and 3

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Sales history 1

Last sold for £672,000 in February 2026. Detached house, freehold.

25 February 2026£672,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area218 m² (2,347 sq ft)
Energy ratingD (55 out of 100), could reach B
PropertyDetached house, 6 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSandstone or limestone, as built, no insulation (assumed)

From the energy performance certificate lodged in February 2020, the latest held for this property. The building may have changed since. View the certificate

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Important details

Application type
Listed Building Consent
Postcode
BS20 7UA
Received
4 Jun 2026
Validated
4 Jun 2026
Ward
Gordano Valley
Parish
Portbury
Case officer
Show
Target decision
30 Jul 2026
Decision
Approve
Decision date
12 Aug 2026
Decision level
Delegated Decision
Applicant
Show

How this decision compares

Decided in 69 days from validation, 13 days slower than North Somerset's median of 56 for listed building works. Approved, as 89% of listed building works here are.

53%decided within 8 weeks
89%approved
50decided in the last year

Plota live figures for listed building works decided by North Somerset in the last twelve months, from validation. North Somerset decision record →

Public comments

No public comments yet.

Last counted 13 Aug 2026

Read the comments on the council site ↗

Consultation & key dates

Comments by
22 Jul 2026
Statutory expiry
30 Jul 2026
Env. assessment
No
North Somerset
Planning Authority Score
6.4/10
Average
#83 of 296 councils
Relevant to this application:
Other decisions

North Somerset is faster than most councils at deciding householder applications, ranking #96 out of 296. Householder applications are slightly more likely to be approved here (93%) than the national average (90%).

Faster than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
North Somerset decision statistics
Based on MHCLG data, the year to March 2026
89%
Overall approval rate
Above avg (87%) #137 of 296
93%
Householder approved
Above avg (90%) #134 of 296
73%
Decided in 8 weeks
Above avg (63%) #96 of 296
34%
Extended time limit
Below avg (41%) #88 of 296
74%
Minor dwellings approved
135 decided (1-9 homes)
95%
Major dwellings approved
19 decided (10+ homes)
85%
Change of use approved
52 decided
1,139
Total decisions
128 refused in the year to March 2026

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

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.