Police Station To Flats
Harpenden, Hertfordshire
A 1990s police station in a conservation area, wrapped in policy protections and a restrictive covenant. We mapped the planning route before sketching the flats.
Feasibility In Brief
The Brief
The former Harpenden Police Station sits in the town's conservation area, next to locally listed buildings, with a restrictive covenant limiting the site to community uses. As a police station it is a Sui Generis use, so any change of use needs full planning permission, and the emerging Local Plan protects community infrastructure through Policy SP7. The question, for a prospective purchaser, was whether residential conversion was realistic at all.
What We Found
We produced a planning appraisal covering the adopted and emerging Local Plans and the Neighbourhood Plan, the conservation area appraisal, and the site's planning history. The key test is Policy SP7: a change of use must show the police function has been re-provided or is no longer required, which the evidence supports. With the building only around 30 years old, reuse scored better than redevelopment, so we sketched flat layouts within the existing envelope, colour-coded by use, respecting daylight to the neighbouring office building.
Our Recommendation
The appraisal concluded that a case could be made for residential and other town-centre uses, subject to the SP7 test and the covenant, and flagged the lack of outside amenity space as the main design constraint for housing. The sketch scheme shows how flats fit the existing building. The client went into negotiations knowing exactly which hurdles matter and in what order.
The Proposed Layout
Sketch scheme for flats within the former police station.
What The Client Received
Feasibility Overview
The proposed design, planning route, key constraints, commercial position and a clear Go or No-Go recommendation.
Planning Research & Risk Analysis
Site-specific policy research, planning precedents, appeal decisions and a risk register with cost implications.
Space & Standards Review
Bedroom, amenity, ceiling-height, kitchen and facility requirements checked room by room against the design.
These are real client reports, so they are not published here.
The Decision
A clear route forward before purchase.
The planning route mapped before the offer. The appraisal confirmed that residential is a realistic future for the building once the Policy SP7 test is met, and that reusing a thirty-year-old building will score better with the council than knocking it down. The sketch scheme shows four two-bedroom flats of 97 to 104 sqm over a retained commercial ground floor with 58 sqm of shared amenity. The two things that decide this deal sit outside the drawings: the restrictive covenant tying the site to community uses, and evidence that the police function has been re-provided elsewhere. The client went into negotiations knowing both, and in what order to settle them.
Recommended roadmap
- 01Covenant and title advice, including indemnity
- 02Policy SP7 evidence that the police use is re-provided
- 03Pre-application meeting with St Albans
- 04Measured survey and condition check
- 05Full planning application
- 06Technical design and construction
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