77 Park Lane Old Knebworth Knebworth Hertfordshire SG3 6PP Data via plota.co.uk

26/02039/FP - Full Planning Permission Awaiting decision
DemolitionNew homesSolar & renewables

Proposal

Erection of one detached three-bedroom dwelling including detached double garage with Air Source Heat Pump and soft and hard landscaping works following demolition of existing detached structures. Data via plota.co.uk

Track application Save this application and get an email when its status or decision changes. Alerts nearby Get email alerts for new planning applications near this address.
View original council record ↗Last checked

Application progress

✓
Received
3 Sept 2026
Decision
Expected by 3 Nov 2026

Under consideration

No decision has been issued yet. Plota predicted a decision around 28 Oct 2026; it is now day 55.

The consultation period closed on 4 Oct 2026.

Documents

View the documents on the council's website ↗

Site constraints 5

Green belt: London
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 3a
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.
Habitat network: Network Enhancement Zone 2
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 2; Priority habitat 6 m away: No main habitat but additional habitats present.
Not affected
Outside flood zones 2 and 3 · No listed building at the site · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, 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.

Building

Floor area481 m² (5,177 sq ft)
Energy ratingE (40 out of 100), could reach C
PropertyDetached house, 12 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in October 2018, the latest held for this property. The building may have changed since. View the certificate

Work with planning data?

Every application in North Hertfordshire - and every UK council - as a live feed, an API, or a bulk CSV export.

About Plota's data service

Other new applications on this street

14 Oct 2026Pending

66 Park Lane Knebworth Hertfordshire SG3 6PW

Details reserved by Condition 6 (Construction Method Statement) of Outline Plann...

26/02625/DOC
29 Sept 2026Approved

Park Gate House Park Lane Old Knebworth Knebworth Hertfordshire SG3 6QD

The Electronic Communications Code (Conditions and restrictions) Regulations 200...

26/02439/EC
10 Sept 2026Approved

159 Park Lane Old Knebworth Knebworth Hertfordshire SG3 6PR

Single storey rear and front extensions following demolition of existing rear el...

26/02149/FPH
13 Aug 2026Pending

Land Adjacent To 67 Park Lane Knebworth Hertfordshire SG3 6PW

Erection of building for church hall use including car parking, hard and soft la...

26/02035/FP

Nearby new applications

14 Oct 2026Pending

66 Park Lane Knebworth Hertfordshire SG3 6PW

Details reserved by Condition 6 (Construction Method Statement) of Outline Plann...

26/02625/DOC
10 Sept 2026Approved

159 Park Lane Old Knebworth Knebworth Hertfordshire SG3 6PR

Single storey rear and front extensions following demolition of existing rear el...

26/02149/FPH
8 Sept 2026Refused

66 Park Lane Knebworth Hertfordshire SG3 6PW

Details reserved by Condition 6 (Construction Method Statement) of outline plann...

26/02159/DOC
27 Aug 2026Pending

66 Park Lane Knebworth Hertfordshire SG3 6PW

Variation of conditions 1 and 14 (Revised Plans-Ecological Enhancements) of Rese...

26/01985/S73
13 Aug 2026Pending

Land Adjacent To 67 Park Lane Knebworth Hertfordshire SG3 6PW

Erection of building for church hall use including car parking, hard and soft la...

26/02035/FP
10 Aug 2026Approved

66 Park Lane Knebworth Hertfordshire SG3 6PW

Details reserved by condition 7 (Archaeological Written Scheme of Investigation)...

26/02012/DOC

Important details

Council
North Hertfordshire
Application type
Full Planning Permission
Postcode
SG3 6PP
Received
3 Sept 2026
Validated
3 Sept 2026
Ward
Knebworth Ward
Parish
Knebworth Parish Council
Case officer
Show
Target decision
3 Nov 2026
Applicant
Show
Agent
M Scott Architectural Design Ltd

Decision outlook

Day 55, past North Hertfordshire's usual 50 days for demolitions. 90% are decided within thirteen weeks, so most likely by 3 Dec 2026.

Day 551 days to the 56-day target
71%decided within 8 weeks
88%approved
127decided in the last year

Plota live figures for demolitions decided by North Hertfordshire in the last twelve months, from validation. North Hertfordshire decision record →

Public comments

No public comments yet.

3 neighbours consulted · Last counted 26 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Comments by
4 Oct 2026

Historical activity at this location

4 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2024 Approved
Park Lane Reservoir And Booster Station Park Lane Old Knebworth Hertfordshire SG3 6PP
Details reserved by condition 4 (landscaping) of planning permission reference no 22/0165…
24/01218/DOC
2024 Approved
Park Lane Reservoir And Booster Station Park Lane Old Knebworth Hertfordshire SG3 6PP
Reduction of access to/from the highway from S278 (for commercial) to S184 for a single d…
24/01030/NMA
2022 Approved
Park Lane Reservoir And Booster Station Park Lane Old Knebworth Hertfordshire SG3 6PP
Amendment to vehicular turning area and creation of two car parking spaces, as an amendme…
22/01654/FP
2022 Approved
Park Lane Reservoir And Booster Station Park Lane Old Knebworth Hertfordshire SG3 6PP
Amendment to vehicular turning area and creation of two car parking spaces, as an amendme…
22/01654/FP
North Hertfordshire
Planning Authority Score
6.9/10
Good
#66 of 296 councils
Relevant to this application:
Householder decisions

North Hertfordshire ranks #128 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (95%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
North Hertfordshire decision statistics
Based on MHCLG data, the year to March 2026
93%
Overall approval rate
Above avg (87%) #62 of 296
95%
Householder approved
Above avg (90%) #87 of 296
69%
Decided in 8 weeks
Above avg (63%) #128 of 296
32%
Extended time limit
Below avg (41%) #65 of 296
82%
Minor dwellings approved
112 decided (1-9 homes)
84%
Major dwellings approved
19 decided (10+ homes)
90%
Change of use approved
21 decided
1,102
Total decisions
82 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

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.