Listed building extension at Solesbridge House, Chorleywood, Rickmansworth

Summary of planning committee decision

Decided by Three Rivers Planning Committee on 11 Sept 2025.

25/0920/LBCApproved

What was proposed

The application sought consent for a pitched-roof single-storey side extension and a sedum roof over the existing link.

“The applications seek full planning permission and Listed Building Consent for the construction of a pitched roofed single storey side extension with a sedum roof over the link (existing flat roofed extension). The proposed extension would be set to the north side of the host dwelling, adjacent to the northeastern corner of the site and boundary with the Chess Valley Walk.”

“The base of the proposed extension would be finished in brick to match the existing. The roof of the existing flat roofed 20th century rear extension is to have sedum planted finish. To the west of the proposed extension, adjoining the western elevation an extended patio area is proposed which extends between the proposed extension, existing dwelling and existing single storey extension. The patio area would have a total area of approximately 64sqm.”

Officer report

The listed building and site

Solesbridge House is a Grade II listed building with a timber-frame core, later additions and a garden beside the Chess Valley Walk.

“03/0635/FUL - Conversion of existing garage into habitable accommodation. Permitted June 2003. 1.7 03/0636/LBC - Listed Building Consent: Conversion of existing garage into habitable accommodation. Permitted June 2003. 1.8 8/114/85 - (Outline) Conversion and extension of barn to form detached dwelling with double garage and erection of detached dwelling with double garage. Refused March 1985.”

“It is noted that whilst each property on Solesbridge Lane is unique in style, design, plot and placement, the character of Solesbridge Lane has sylvan characteristics and further down the lane is more open and rural in character. Solesbridge House is a Grade II listed building, of early to mid-17 th century origin, which has been subject to alterations and extensions throughout the 19 th and 20 th centuries.”

Officer report

Earlier applications

An earlier larger extension was refused for harm to the listed building, while listed building consent for that scheme was granted.

“Relevant Planning History 1.1 24/1360/FUL - Construction of pitched roof single storey side extension with accommodation in the roof space. Refused. 28.01.2025. Reason for refusal: The proposed single storey side extension with accommodation in the roofspace by virtue of its scale, siting and unsympathetic materials would have an adverse impact on the special character and significance of the listed building, resulting in less than substantial harm.”

“28.01.2025 1.3 24/1316/FUL - Demolition of existing boundary wall; construction of fencing and gate; extension of gravel drive. Permitted November 2024. Not implemented. 1.4 24/1317/LBC - Listed Building Consent: Demolition of existing boundary wall; construction of fencing and gate; extension of gravel drive. Permitted November 2024. Not implemented. 1.5 04/0721/LBC - Listed Building Consent: Internal alterations to existing dressing room, installation of new drainage.”

Officer report

Officers’ assessment

Officers considered the amended extension would be separate from historic parts, use matching finishes and avoid harm to the listed building.

“Policy 1 of the Chorleywood Neighbourhood Plan states that ‘the historic heritage within the plan area will...be conserved, and wherever possible, enhanced through positive action.’ In respect of the listed building consent application, the new contemporary extension would extend from an existing flat roofed single storey side extension which previously served as a modern garage.”

“With regard to the previously refused application 24/1360/FUL which forms a material consideration in the determination of this application, it is considered that the amendments to the scheme have overcome the reason previously given for refusal: the proposed extension has been significantly reduced in scale and no longer protrudes beyond the flank elevations of the existing dwelling; the material finish has been altered to match the existing dwelling; whilst modern…”

Officer report

The committee vote

A motion to grant listed building consent subject to a condition was carried unanimously.

“Councillor Gazzard moved, and Councillor Lloyd seconded, that listed building consent be granted subject to a condition. On being put to the vote this was carried unanimously.”

Minutes

The decision

Listed building consent was granted subject to a condition.

“RESOLVED: that listed building consent be granted subject to a condition.”

Minutes

The condition

The works must begin within three years of the permission date.

“24/1317/LBC: That LISTED BUILDING CONSENT BE PERMITTED subject to the following condition:”

“C1 The development hereby permitted shall be begun before the expiration of three years from the date of this permission. Reason: To comply with the requirements of the Planning (Listed Buildings and Conservation Areas) Act 1990.”

Officer report

Sources

  • Three Rivers Planning Committee minutes, 11 September 2025
  • Agenda and papers (council website)

Source: Plota analysis of Three Rivers's committee minutes and officer report. Quotations are the council's own words; headings and summaries are Plota's.

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At the meeting

Date
Thursday 11 September 2025
Committee decided
Approved
Vote
Unanimous
Minutes
The council's minutes
Meeting
Agenda and papers (council website)
Application
The application (council website)

This committee's year

15 decisions in the 12 months to this meeting.

Source: Plota analysis of the committee's minutes.

Every decision by this council's committees →