Frognal House 99 Frognal London NW3 6XR Data via plota.co.uk

2026/4659/L - Listed Building Consent New application
Extensions & alterationsListed buildings

Proposal

Replacement of existing sashes with new slim double glazed sashes 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
21 Oct 2026
Decision
Expected by 16 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 11 Dec 2026 and 1 Jan 2027, from Camden's recent extensions.

Comments are open until 14 Nov 2026

Comment on this application ↗

Documents

View the documents on the council's website ↗

Site constraints 7

24 listed buildings within 150 m of the postcode pin
Nearest: Frognal Grove Including Former Stable Range, Grade II*, the postcode pin is inside its outline · 1 Grade II*, 22 Grade II
The site itself is not listed. 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.
Show all 24 with distances
Historic England ↗
Hampstead conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
2 Article 4 directions
Hampstead Conservation Area (excl. Frognal Way) Non-immediate Article 4 · Basements. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Air quality management area: Camden AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
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
Inside the Camden built-up area; Public transport access: PTAL 3 (moderate), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 23 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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 £12,489,560 in December 2021. Other property, freehold.

16 December 2021£12,489,560Recorded as a transfer outside a standard sale

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

Work with planning data?

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

About Plota's data service

Nearby new applications

26 Oct 2026Pending

96 Frognal London NW3 6XB

REAR GARDEN: 1 x Apple (T1) - Prune back branches over table by up to 1m. Prune ...

2026/4719/T
26 Oct 2026Pending

14 Cannon Place London NW3 1EJ

Discharge of condition 4D of listed buildign consent application 2023/4992/L reg...

2026/4691/L
26 Oct 2026Pending

14 Cannon Place London NW3 1EJ

Discharge of condition 4D of planning permssion 2023/3926/P regarding a brick sa...

2026/4694/L
23 Oct 2026Pending

Savoy Court Firecrest Drive London NW3 7NF

(TPO REF: C100 G1) COMMUNAL GARDEN: 1 x Austrian Pine (T1) - reduce side of crow...

2026/4685/T
22 Oct 2026Pending

14 Heath Street London NW3 6TE

Change of use of first and second floors from office use (Use Class E) to reside...

2026/4038/P
22 Oct 2026Pending

6 Grange Gardens London NW3 7XG

(TPO REF: A1) REAR GARDEN: 1 x English Oak (Quercus robur) (T1) - Crown reductio...

2026/4413/T

Important details

Council
Camden
Application type
Listed Building Consent
Postcode
NW3 6XR
Received
21 Oct 2026
Validated
21 Oct 2026
Ward
Frognal
Case officer
Show
Applicant
Show
Agent
The Heritage Practice ltd.

Decision outlook

Day 7 of the 56-day target. Camden usually decides extensions by day 58.

Day 751 days to the predicted decision (day 58)
48%decided within 8 weeks
94%approved
10%go to committee

Plota live figures for extensions decided by Camden in the last twelve months, from validation. Camden decision record →

Consultation & key dates

Comments by
14 Nov 2026

Historical activity at this location

32 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2024 Approved
Change of use of convent (Sui Generis) to create four residential units (C3), demolition…
2024/0176/L
2024 Approved
Change of use of convent (Sui Generis) to create four residential units (C3), demolition…
2024/0030/P
2022 Approved
SIDE COURTYARD GARDEN: 1 x Willow (T1) - Fell in sections to ground level.
2022/5443/T
2021 Approved
Erection of a plaque commemorating the award of the Croix de la Liberation by General Cha…
2021/2208/L
2020 Approved
FRONT SIDE GARDEN: 1 x Horse Chestnut (T1) - Crown reduce back to previous points.
2020/0574/T
2019 Approved
Replacement of rear roof of lightwell at ground floor
2019/2838/L
2019 Approved
Replacement of rear roof of lightwell at ground floor
2019/2102/P
Within ~100m

Nearby activity

2024 Approved
113 Frognal London NW3 6XR
(TPO REF: C1284 2022) REAR GARDEN: 1 x London Plane (T1) - Prune southern-side of canopy…
2024/5775/T
2024 Approved
18 Frognal Gardens London NW3 6XA
DD 5 Day Notice REAR GARDEN: 1 x Pear (T1) - Remove fallen tree.
2024/5511/T
2024 Refused
111 Frognal London NW3 6XR
Variation of condition 2 (approved drawings) and removal of condition 4 (details drawings…
2024/0522/L
2024 Approved
108 Frognal London NW3 6XU
FRONT GARDEN: 1 x Leylandii hedge (G2) - Reduce height by 2ft and trim to front to square…
2024/4931/T
2024 Approved
108 Frognal London NW3 6XU
(TPO REF. 7H-T58) FRONT GARDEN: 1 x London plane (T1) - Re-pollard back to previous most…
2024/4926/T
2024 Approved
99A frognal London NW3 6XR
FRONT GARDEN: 1 x Sycamore (TG2) - Crown reduce overhang back to boundary by 3m (Southern…
2024/2602/T
2024 Approved
109 Frognal London NW3 6XR
DD 5 Day Notice REAR GARDEN: 1 x Copper Beech (T1) - Fell to ground level.
2024/1575/T
2024 Approved
5 Oak Hill Park Mews London NW3 7LH
Use of existing roof as a terrace and erection of associated balustrade, new rooflight wi…
2024/1638/P
2023 Refused
Frognal Cottage 102 Frognal London Camden NW3 6XU
Erection of two storey side extension and associated works
2023/4996/P
2024 Approved
4 Oak Hill Park London NW3 7LG
FRONT GARDEN: 1 x Oak (T1) - Reduce lower canopy on drive side by 2m - 3m, up to 6m in he…
2024/0645/T
2023 Approved
5 & 6 Oak Hill Park Mews London NW3 7LH
Replacement of single-glazed aluminium framed windows and external doors on front, side a…
2023/3210/P
2023 Approved
95 Frognal London NW3 6XX
FRONT GARDEN: 1 x Holm Oak (T1) - Reduce crown by up to 1.5m from crown tips.
2023/4411/T
2023 Approved
95 Frognal London NW3 6XX
FRONT GARDEN: 1 x Bay Laurel (T1) - Lift crown to clear pavement, approx. 2.2m.
2023/3700/T
2023 Approved
18 Frognal Gardens London NW3 6XA
REAR GARDEN: 1 x Holly (T2) - Trim holly back to boundary, reducing lateral spread by 1m…
2023/3063/T
2023 Approved
3 Oak Hill Way London NW3 7LR
FRONT GARDEN: 1 x Robinia (False Acacia) (T1) - Reduce crown by 50%, approx. 3.5m - 4.5m.
2023/2647/T
2023 Approved
109 Frognal London NW3 6XR
REAR GARDEN: 1 x Copper Beech (T1) - Remove limb over pool pump station.
2023/2595/T
2023 Approved
1 Oak Hill Park Mews London NW3 7LH
FRONT GARDEN: 1 x Leyland Cypress (T1) - Fell to ground level.
2023/2573/T
2022 Approved
4 Oak Hill Park London NW3 7LG
Demolition of the existing house and erection of a new house (Class C3).
2022/4791/P
2022 Refused
102 Frognal London Camden NW3 6XU
Alterations and extensions to the existing two storey side extension including a change t…
2022/5138/P
2023 Approved
The Heights Frognal London NW3 6XS
FRONT SIDE GARDEN: 1 x Yew (G2) - Reduce by up to 1m and shape.
2023/0948/T
2016 Approved
109 Frognal London NW3 6XR
REAR GARDEN: Small Cherry (T1) - fell to ground level
2016/2343/T
2016 Approved
99 Frognal House Frognal London NW3 6XR
REAR GARDEN: 1 x London Plane T1 - reduce back to previous points 1 x Maple T2 - reduce b…
2016/1237/T
2016 Approved
113 Frognal London NW3 6XR
(TPO Ref: C257) REAR GARDEN: 1 x Sycamore - Prune back to previous reduction points. (TPO…
2016/0189/T
2016 Approved
111 Frognal London NW3 6XR
REAR GARDEN: 1 x Conifer - prune overhanging back to property boundary.
2016/0384/T
2016 Approved
113 Frognal London NW3 6XR
REAR GARDEN: 1 x Plane - Reduce overlong back to main crown. Thin throughout by 20%. Lift…
2016/0188/T
Camden
Planning Authority Score
3.1/10
Poor
#231 of 296 councils
Relevant to this application:
Other decisions

Camden is slower than most councils at deciding householder applications, ranking #242 out of 296. Householder applications are slightly less likely to be approved here (88%) than the national average (90%).

Slower than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Camden decision statistics
Based on MHCLG data, the year to March 2026
88%
Overall approval rate
Above avg (87%) #149 of 296
88%
Householder approved
Below avg (90%) #215 of 296
49%
Decided in 8 weeks
Below avg (63%) #242 of 296
41%
Extended time limit
Below avg (41%) #158 of 296
90%
Minor dwellings approved
467 decided (1-9 homes)
80%
Major dwellings approved
10 decided (10+ homes)
93%
Change of use approved
46 decided
1,973
Total decisions
234 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

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