Single storey extension to rear and side of semi- detached bungalow
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Residential Amenity
Flood Risk
Character & Appearance
Inspector’s Reasoning
Appeal Decision
Site visit made on 21 October 2025
by Sarah Colebourne MA, MRTPI
an Inspector appointed by the Secretary of State
Decision date:06 November 2025
Appeal Ref: APP/B2002/D/25/3371644
12 Thornton Court, New Waltham, Grimsby, DN36 4LS
• The appeal is made under section 78 of the Town and Country Planning Act 1990 (as amended)
against a refusal to grant planning permission.
• The appeal is made by Mrs Michelle Newman against the decision of North East Lincolnshire
Council.
• The application Ref is DM/1061/24/FUL.
• The development proposed is described as ‘single storey extension to rear and side of semi-
detached bungalow’.
Decision
1. The appeal is allowed and planning permission is granted for the erection of a
single storey rear/side extension, demolition of the existing detached garage and
the erection of a detached garage and store with various associated works at 12
Thornton Court, New Waltham, Grimsby, DN36 4LS in accordance with the terms
of the application, Ref DM/1061/24/FUL, subject to the following conditions:-
1) The development hereby permitted shall begin not later than three years
from the date of this decision.
2) The development hereby permitted shall be carried out in accordance with
the following approved plans: Site Location Plan; Proposed Block Plan dated
7 May 2025; Proposed Site Plan and Garage Plans and Elevations dated 7
May 2025; Proposed Plans and Elevations dated 2 May 2025.
3) The materials to be used in the construction of the external surfaces of the
development hereby permitted shall match those used in the existing
dwelling.
4) Surface water drainage shall be via the water butts shown on the Proposed
Plans and Elevations received 2 May 2025 and the Proposed Site Plan,
Garage Plans and Elevations received 7 May 2025, which shall be installed
before the extension and garage are brought into use and shall thereafter be
so retained unless an alternative is submitted to and approved in writing by
the local planning authority.
Preliminary matter
2. I have noted that the Council’s decision notice and the plans include the demolition
of the existing detached garage and the erection of a new garage, store and
associated works. The Council has not objected to that part of the development
and from what I have seen that would be acceptable so I have included it in the
formal decision above.
Appeal Decision APP/B2002/D/25/3371644
2
Main Issues
3. The main issues in this case are the effect of the proposed development on:-
• the character and appearance of the area;
• the living conditions of the neighbouring occupiers.
Reasons
Character and appearance
4. The appeal site comprises a hipped roof, semi-detached bungalow in a street of
similar properties. It is tucked into the head of the cul-de-sac and has a small area
of garden to the rear of the dwelling with a larger area of garden to the side of the
dwelling.
5. The proposed extension would be sited at the rear of the dwelling, attached to
an existing rear projection. A small existing conservatory would be
demolished. It would have a flat roof form of some 3.1m in height which would be
seen in the context of an existing flat roofed dormer on the rear elevation. There
are many flat roofed formers on both front and rear elevations in the street and the
flat roof form and design proposed here would therefore be acceptable.
6. It would project some 6.53m beyond the original rear wall and would have a width
of some 8m, projecting beyond both side walls of the existing projection. However,
due to its siting at the rear of the dwelling, it would not be seen clearly, if at all, from
the street or from any other public view points and the high surrounding boundaries
would screen most of the extension even in private views from nearby dwellings.
7. Although it would be a large extension, given its siting away from public views and
the limited private views, it would not be dominant in the street scene and its scale
and massing would be assimilated within the context of this large plot. As such, the
proposed extension would not result in significant harm to the character or
appearance of the street scene or the wider area. The proposal would therefore
accord with development plan policies 5 and 22 of the North East Lincolnshire
Local Plan 2013-2032 (2018) (LP) which seek to ensure that regard is paid to the
size and scale of developments and that a high standard of design is achieved.
Living conditions
8. The dwelling has a rear boundary with several properties to the rear on Moorland
Drive and around the corner at Peaks Avenue. The proposed extension would be
particularly close to the rear boundary with nos 2 and 3 Moorland Drive, some 3.7m
and 2.2m respectively from those properties, which have first floor windows that
overlook the appeal site. However, those properties are at a significantly higher
ground level than the appeal site and separated by very high boundaries. Given
the position of the extension close to those rear boundaries, its relatively low
height, the lack of openings in the rear elevation and its orientation to the north of
those neighbouring gardens, I agree with the Council that the proposal would not
result in harm to the outlook, privacy or light of those properties or others at the rear
of the site.
9. The adjoining dwelling at no 11 has not been extended to the rear and has two rear
facing windows. The closest is a patio window sited close to the side boundary.
Appeal Decision APP/B2002/D/25/3371644
3
Although the extension would project along some 6.53m of the side boundary, it
would be set in from the boundary by some 1.75m and its low height would mean
that it would not be unduly dominant in the outlook from those rear windows. The
open area in front of the patio windows to bedroom 2 at the appeal dwelling and
immediately adjacent to the patio window of no 11 would be retained and would
offer an adequate degree of openness in the outlook from and light to that property.
No 11 has a south facing aspect and the proposal would not lead to a significant
loss of light or sunlight to that property.
10. I have noted that no 11 is in the ownership of the appellant’s family and whilst that
could change in the future, future occupiers would be aware of the presence of the
extension. In any case, I am satisfied that the proposal would not significantly harm
the living conditions of those occupiers in terms of outlook, light or sunlight. It
would accord with development plan policies 5 and 22 in the LP which also seek to
protect neighbouring land uses and ensure that developments have regard to the
site’s context.
Conditions
11. In addition to the standard commencement condition, a condition is necessary
requiring that the development is carried out in accordance with the approved plans
to provide certainty. A condition for matching external materials is also necessary
in the interests of the character and appearance of the site and the area. I have
also included the Council’s suggested condition for surface water drainage which is
necessary in the interests of flood risk and drainage.
Conclusion
12. For the reasons given above, I conclude that the proposed development would
accord with the development plan and there are no material considerations that
would outweigh that. The appeal should be allowed.
Sarah Colebourne
INSPECTOR
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